{"id":118,"date":"2024-01-09T11:06:41","date_gmt":"2024-01-09T03:06:41","guid":{"rendered":"http:\/\/www.sunqizheng1997.com\/?p=118"},"modified":"2024-01-09T11:06:41","modified_gmt":"2024-01-09T03:06:41","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c","status":"publish","type":"post","link":"http:\/\/www.sunqizheng1997.com\/index.php\/2024\/01\/09\/%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c\/","title":{"rendered":"\u8ba1\u7b97\u673a\u7f51\u7edc"},"content":{"rendered":"

\u8ba1\u7b97\u673a\u7f51\u7edc<\/h1>\n

\u4e00\u3001\u7f51\u7edc\u6a21\u578b<\/h2>\n

\"image-20230904112233143\"<\/div><\/p>\n

\u7f51\u7edc\u534f\u8bae<\/h3>\n

\u6211\u4eec\u7528\u624b\u673a\u8fde\u63a5\u4e0a\u7f51\u7684\u65f6\u5019\uff0c\u4f1a\u7528\u5230\u8bb8\u591a\u7f51\u7edc\u534f\u8bae\u3002<\/p>\n

\u4ece\u624b\u673a\u8fde\u63a5 WiFi<\/strong> \u5f00\u59cb\uff0c\u4f7f\u7528\u7684\u662f 802.11 (\u5373 WLAN ) \u534f\u8bae<\/strong>\uff0c\u901a\u8fc7 WLAN \u63a5\u5165\u7f51\u7edc\uff1b\u624b\u673a\u81ea\u52a8\u83b7\u53d6\u7f51\u7edc\u914d\u7f6e\uff0c\u4f7f\u7528\u7684\u662f DHCP \u534f\u8bae\uff0c\u83b7\u53d6\u914d\u7f6e\u540e\u624b\u673a\u624d\u80fd\u6b63\u5e38\u901a\u4fe1<\/strong>\u3002<\/p>\n

\u8fd9\u65f6\u624b\u673a\u5df2\u7ecf\u8fde\u5165\u5c40\u57df\u7f51\uff0c\u53ef\u4ee5\u8bbf\u95ee\u5c40\u57df\u7f51\u5185\u7684\u8bbe\u5907\u548c\u8d44\u6e90<\/strong>\uff0c\u4f46\u8fd8\u4e0d\u80fd\u4f7f\u7528\u4e92\u8054\u7f51\u5e94\u7528\uff0c\u4f8b\u5982: \u5fae\u4fe1\u3001\u6296\u97f3\u7b49\u3002<\/p>\n

\u60f3\u8981\u8bbf\u95ee\u4e92\u8054\u7f51\uff0c\u8fd8\u9700\u8981\u5728\u624b\u673a\u7684\u4e0a\u8054\u7f51\u7edc\u8bbe\u5907\u4e0a\u5b9e\u73b0\u76f8\u5173\u534f\u8bae<\/strong>\uff0c\u5373\u5728\u65e0\u7ebf\u8def\u7531\u5668\u4e0a\u914d\u7f6e NAT\u3001 PPPOE \u7b49\u529f\u80fd\uff0c\u518d\u901a\u8fc7\u8fd0\u8425\u5546\u63d0\u4f9b\u7684\u4e92\u8054\u7f51\u7ebf\u8def\u628a\u5c40\u57df\u7f51\u63a5\u5165\u5230\u4e92\u8054\u7f51<\/strong>\u4e2d\uff0c\u624b\u673a\u5c31\u53ef\u4ee5\u4e0a\u7f51\u73a9\u5fae\u4fe1\u3001\u5237\u6296\u97f3\u4e86\u3002<\/p>\n

    \n
  • \u5c40\u57df\u7f51 : \u5c0f\u8303\u56f4\u5185\u7684\u79c1\u6709\u7f51\u7edc\uff0c\u4e00\u4e2a\u5bb6\u5ead\u5185\u7684\u7f51\u7edc\u3001\u4e00\u4e2a\u516c\u53f8\u5185\u7684\u7f51\u7edc\u3001\u4e00\u4e2a\u6821\u56ed\u5185\u7684\u7f51\u7edc\u90fd\u5c5e\u4e8e\u5c40\u57df\u7f51\u3002<\/li>\n
  • \u5e7f\u57df\u7f51: \u628a\u4e0d\u540c\u5730\u57df\u7684\u5c40\u57df\u7f51\u4e92\u76f8\u8fde\u63a5\u8d77\u6765\u7684\u7f51\u7edc\u3002\u8fd0\u8425\u5546\u642d\u5efa\u5e7f\u57df\u7f51\u5b9e\u73b0\u8de8\u533a\u57df\u7684\u7f51\u7edc\u4e92\u8fde\u3002<\/li>\n
  • \u4e92\u8054\u7f51: \u4e92\u8054\u5168\u4e16\u754c\u7684\u7f51\u7edc\u3002\u4e92\u8054\u7f51\u662f\u4e00\u4e2a\u5f00\u653e\u3001\u4e92\u8054\u7684\u7f51\u7edc\uff0c\u4e0d\u5c5e\u4e8e\u4efb\u4f55\u4e2a\u4eba\u548c\u4efb\u4f55\u673a\u6784\uff0c\u63a5\u5165\u4e92\u8054\u7f51\u540e\u53ef\u4ee5\u548c\u4e92\u8054\u7f51\u7684\u4efb\u4f55\u4e00\u53f0\u4e3b\u673a\u8fdb\u884c\u901a\u4fe1\u3002<\/li>\n<\/ul>\n

    OSI\u53c2\u8003\u6a21\u578b<\/h3>\n

    OSI \u53c2\u8003\u6a21\u578b\u5c06\u7f51\u7edc\u534f\u8bae\u63d0\u4f9b\u7684\u670d\u52a1\u5206\u6210 7 \u5c42\uff0c\u5e76\u5b9a\u4e49\u6bcf\u4e00\u5c42\u7684\u670d\u52a1\u5185\u5bb9\uff0c\u5b9e\u73b0\u6bcf\u4e00\u5c42\u670d\u52a1\u7684\u662f\u534f\u8bae\uff0c\u534f\u8bae\u7684\u5177\u4f53\u5185\u5bb9\u662f\u89c4\u5219\u3002\u4e0a\u4e0b\u5c42\u4e4b\u95f4\u901a\u8fc7\u63a5\u53e3\u8fdb\u884c\u4ea4\u4e92\uff0c\u540c\u4e00\u5c42\u4e4b\u95f4\u901a\u8fc7\u534f\u8bae\u8fdb\u884c\u4ea4\u4e92\u3002 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    \u5206\u5c42<\/th>\n\u5206\u5c42\u540d\u79f0<\/th>\n\u529f\u80fd<\/th>\n<\/tr>\n<\/thead>\n
    7<\/td>\n\u5e94\u7528\u5c42<\/td>\n\u9488\u5bf9\u7279\u5b9a\u5e94\u7528\u7684\u534f\u8bae<\/td>\n<\/tr>\n
    6<\/td>\n\u8868\u793a\u5c42<\/td>\n\u8bbe\u5907\u56fa\u6709\u6570\u636e\u683c\u5f0f\u548c\u7f51\u7edc\u6807\u51c6\u6570\u636e\u683c\u5f0f\u7684\u8f6c\u6362<\/td>\n<\/tr>\n
    5<\/td>\n\u4f1a\u8bdd\u5c42<\/td>\n\u901a\u4fe1\u7ba1\u7406\u3002\u8d1f\u8d23\u5efa\u7acb\u548c\u65ad\u5f00\u903b\u8f91\u901a\u4fe1\u8fde\u63a5<\/td>\n<\/tr>\n
    4<\/td>\n\u4f20\u8f93\u5c42<\/td>\n\u7ba1\u7406\u4e24\u4e2a\u4e3b\u673a\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002\u8d1f\u8d23\u53ef\u9760\u4f20\u8f93<\/td>\n<\/tr>\n
    3<\/td>\n\u7f51\u7edc\u5c42<\/td>\n\u5730\u5740\u7ba1\u7406\u548c\u8def\u7531\u9009\u62e9<\/td>\n<\/tr>\n
    2<\/td>\n\u6570\u636e\u94fe\u8def\u5c42<\/td>\n\u4e92\u8fde\u8bbe\u5907\u4e4b\u95f4\u4f20\u9001\u548c\u8bc6\u522b\u6570\u636e\u5e27<\/td>\n<\/tr>\n
    1<\/td>\n\u7269\u7406\u5c42<\/td>\n\u6bd4\u7279\u6d41\u4e0e\u7535\u5b50\u4fe1\u53f7\u4e4b\u95f4\u7684\u5207\u6362<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5e94\u7528\u5c42<\/h4>\n

    OSI\u6a21\u578b\u7684\u7684\u7b2c7\u5c42\uff08\u6700\u9ad8\u5c42\uff09\uff0c\u5e94\u7528\u7a0b\u5e8f\u548c\u7f51\u7edc\u4e4b\u95f4\u7684\u63a5\u53e3\uff0c\u76f4\u63a5\u5411\u7528\u6237\u63d0\u4f9b\u670d\u52a1\uff0c\u5e94\u7528\u5c42\u6709\u7535\u5b50\u90ae\u4ef6\u3001\u8fdc\u7a0b\u767b\u5f55\u7b49\u534f\u8bae\u3002<\/p>\n

    \u8868\u793a\u5c42<\/h4>\n

    OSI\u53c2\u8003\u6a21\u578b\u7684\u7b2c 6 \u5c42\u3002\u8d1f\u8d23\u6570\u636e\u683c\u5f0f\u7684\u4e92\u76f8\u8f6c\u6362\uff0c\u5982\u7f16\u7801\u3001\u6570\u636e\u683c\u5f0f\u8f6c\u6362\u548c\u52a0\u5bc6\u89e3\u5bc6\u7b49\u3002\u4fdd\u8bc1\u4e00\u4e2a\u7cfb\u7edf\u5e94\u7528\u5c42\u53d1\u51fa\u7684\u4fe1\u606f\u53ef\u88ab\u53e6\u4e00\u7cfb\u7edf\u7684\u5e94\u7528\u5c42\u8bfb\u51fa\u3002<\/p>\n

    \u4f1a\u8bdd\u5c42<\/h4>\n

    OSI\u53c2\u8003\u6a21\u578b\u7684\u7b2c 5 \u5c42\u3002\u4e3b\u8981\u662f\u7ba1\u7406\u548c\u534f\u8c03\u4e0d\u540c\u4e3b\u673a\u4e0a\u5404\u79cd\u8fdb\u7a0b\u4e4b\u95f4\u7684\u901a\u4fe1(\u5bf9\u8bdd)\uff0c\u5373\u8d1f\u8d23\u5efa\u7acb\u3001\u7ba1\u7406\u548c\u7ec8\u6b62\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u4f1a\u8bdd\u3002<\/p>\n

    \u4f20\u8f93\u5c42<\/h4>\n

    OSI\u53c2\u8003\u6a21\u578b\u7684\u7b2c 4 \u5c42\u3002\u4e3a\u4e0a\u5c42\u534f\u8bae\u63d0\u4f9b\u901a\u4fe1\u4e3b\u673a\u95f4\u7684\u53ef\u9760\u548c\u900f\u660e\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1\uff0c\u5305\u62ec\u5904\u7406\u5dee\u9519\u63a7\u5236\u548c\u6d41\u91cf\u63a7\u5236\u7b49\u95ee\u9898\u3002\u53ea\u5728\u901a\u4fe1\u4e3b\u673a\u4e0a\u5904\u7406\uff0c\u4e0d\u9700\u8981\u5728\u8def\u7531\u5668\u4e0a\u5904\u7406\u3002<\/p>\n

    \u7f51\u7edc\u5c42<\/h4>\n

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    \u6570\u636e\u94fe\u8def\u5c42<\/h4>\n

    OSI\u53c2\u8003\u6a21\u578b\u7684\u7b2c 2 \u5c42\u3002\u8d1f\u8d23\u7269\u7406\u5c42\u9762\u4e0a\u4e24\u4e2a\u4e92\u8fde\u4e3b\u673a\u95f4\u7684\u901a\u4fe1\u4f20\u8f93\uff0c\u5c06\u7531 01 \u7ec4\u6210\u7684\u6bd4\u7279\u6d41\u5212\u5206\u6210\u6570\u636e\u4f20\u8f93\u7ed9\u5bf9\u7aef\uff0c\u5373\u6570\u636e\u5e27\u7684\u751f\u6210\u4e0e\u63a5\u6536\u3002\u901a\u4fe1\u4f20\u8f93\u5b9e\u9645\u4e0a\u662f\u901a\u8fc7\u7269\u7406\u7684\u4f20\u8f93\u4ecb\u8d28\u5b9e\u73b0\u7684\u3002<\/p>\n

    \u6570\u636e\u94fe\u8def\u5c42\u7684\u4f5c\u7528\u5c31\u662f\u5728\u8fd9\u4e9b\u901a\u8fc7\u4f20\u8f93\u4ecb\u8d28\u4e92\u8fde\u7684\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u5904\u7406\u7f51\u7edc\u5c42\u4e0e\u6570\u636e\u94fe\u8def\u5c42\u90fd\u662f\u57fa\u4e8e\u76ee\u6807\u5730\u5740\u5c06\u6570\u636e\u53d1\u9001\u7ed9\u63a5\u6536\u7aef\u7684\uff0c\u4f46\u662f\u7f51\u7edc\u5c42\u8d1f\u8d23\u5c06\u6574\u4e2a\u6570\u636e\u53d1\u9001\u7ed9\u6700\u7ec8\u76ee\u6807\u5730\u5740\uff0c \u800c\u6570\u636e\u94fe\u8def\u5c42\u5219\u53ea\u8d1f\u8d23\u53d1\u9001\u4e00\u4e2a\u5206\u6bb5\u5185\u7684\u6570\u636e\u3002<\/p>\n

    \u7269\u7406\u5c42<\/h4>\n

    OSI\u53c2\u8003\u6a21\u578b\u7684\u7b2c 1 \u5c42 (\u6700\u5e95\u5c42) \u3002\u8d1f\u8d23\u903b\u8f91\u4fe1\u53f7 (\u6bd4\u7279\u6d41) \u4e0e\u7269\u7406\u4fe1\u53f7 (\u7535\u4fe1\u53f7\u3001\u5149\u4fe1\u53f7)\u4e4b\u95f4\u7684\u4e92\u76f8\u8f6c\u6362\uff0c\u901a\u8fc7\u4f20\u8f93\u4ecb\u8d28\u4e3a\u6570\u636e\u94fe\u8def\u5c42\u63d0\u4f9b\u7269\u7406\u8fde\u63a5\u3002<\/p>\n

    TCP\/IP\u6a21\u578b<\/h3>\n

    TCP\/IP \u662f\u6709\u7531 IETF \u5efa\u8bae\u3001\u63a8\u8fdb\u5176\u6807\u51c6\u5316\u7684\u4e00\u79cd\u534f\u8bae\uff0c\u662f IP \u3001TCPHTTP \u7b49\u534f\u8bae\u7684\u96c6\u5408\u3002TCP\/IP \u662f\u4e3a\u4f7f\u7528\u4e92\u8054\u7f51\u800c\u5f00\u53d1\u5236\u5b9a\u7684\u534f\u8bae\u65cf\uff0c\u6240\u4ee5\u4e92\u8054\u7f51\u7684\u534f\u8bae\u5c31\u662f TCP\/IP\u3002<\/p>\n

    \"image-20230904140443195\"<\/div><\/p>\n

    \u7f51\u7edc\u63a5\u5165\u5c42<\/h4>\n

    \u8bbe\u5907\u4e4b\u95f4\u901a\u8fc7\u7269\u7406\u7684\u4f20\u8f93\u4ecb\u8d28\u4e92\u8fde\uff0c \u800c\u4e92\u8fde\u7684\u8bbe\u5907\u4e4b\u95f4\u4f7f\u7528 MAC \u5730\u5740\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u3002\u91c7\u7528 MAC \u5730\u5740<\/strong>\uff0c\u76ee\u7684\u662f\u4e3a\u4e86\u8bc6\u522b\u8fde\u63a5\u5230\u540c\u4e00\u4e2a\u4f20\u8f93\u4ecb\u8d28\u4e0a\u7684\u8bbe\u5907\u3002<\/p>\n

    \u7f51\u7edc\u5c42<\/h4>\n

    \u76f8\u5f53\u4e8e OSI \u6a21\u578b\u4e2d\u7684\u7b2c 3 \u5c42\u7f51\u7edc\u5c42\uff0c\u4f7f\u7528 IP \u534f\u8bae<\/strong>\u3002<\/p>\n

    IP \u534f\u8bae\u57fa\u4e8e IP \u5730\u5740\u8f6c\u53d1\u5206\u5305\u6570\u636e<\/strong>\uff0c\u4f5c\u7528\u662f\u5c06\u6570\u636e\u5305\u4ece\u6e90\u5730\u5740\u53d1\u9001\u5230\u76ee\u7684\u5730\u5740<\/strong>\u3002
    \nTCP\/IP \u5206\u5c42\u4e2d\u7684\u7f51\u7edc\u5c42\u4e0e\u4f20\u8f93\u5c42\u7684\u529f\u80fd\u901a\u5e38\u7531\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u3002\u8def\u7531\u5668\u5c31\u662f\u901a\u8fc7\u7f51\u7edc\u5c42\u5b9e\u73b0\u8f6c\u53d1\u6570\u636e\u5305\u7684\u529f\u80fd<\/strong>\u3002<\/p>\n

    \u7f51\u7edc\u4f20\u8f93\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u4f1a\u6839\u636e\u6570\u636e\u7684\u5730\u5740\u4fe1\u606f\uff0c\u6765\u5224\u65ad\u8be5\u62a5\u6587\u5e94\u8be5\u7531\u54ea\u4e2a\u7f51\u5361\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n

    \u5404\u4e2a\u5730\u5740\u4f1a\u53c2\u8003\u4e00\u4e2a\u53d1\u51fa\u63a5\u53e3\u5217\u8868\uff0c MAC \u5bfb\u5740\u4e2d\u6240\u53c2\u8003\u7684\u8fd9\u5f20\u8868\u53eb\u505a MAC \u5730\u5740\u8f6c\u53d1\u8868\uff0c\u800c IP \u5bfb\u5740\u4e2d\u6240\u53c2\u8003\u7684\u53eb\u505a\u8def\u7531\u63a7\u5236\u8868<\/strong>\u3002 <\/p>\n

    MAC \u5730\u5740\u8f6c\u53d1\u8868\u81ea\u52a8\u751f\u6210\u3002<\/p>\n

    \u8def\u7531\u63a7\u5236\u8868\u5219\u6839\u636e\u8def\u7531\u534f\u8bae\u81ea\u52a8\u751f\u6210\u3002 <\/p>\n

    MAC \u5730\u5740\u8f6c\u53d1\u8868\u4e2d\u6240\u8bb0\u5f55\u7684\u662f\u5b9e\u9645\u7684 MAC \u5730\u5740\u672c\u8eab\uff0c\u800c\u8def\u7531\u8868\u4e2d\u8bb0\u5f55\u7684 IP \u5730\u5740\u5219\u662f\u96c6\u4e2d\u4e86\u4e4b\u540e\u7684\u7f51\u7edc\u53f7 (\u5373\u7f51\u7edc\u53f7\u4e0e\u5b50\u7f51\u63a9\u7801)\u3002<\/p>\n

    IP<\/h5>\n

    IP \u662f\u8de8\u8d8a\u7f51\u7edc\u4f20\u9001\u6570\u636e\u5305\uff0c\u4f7f\u7528 IP \u5730\u5740\u4f5c\u4e3a\u4e3b\u673a\u7684\u6807\u8bc6\uff0c\u4f7f\u6574\u4e2a\u4e92\u8054\u7f51\u90fd\u80fd\u6536\u5230\u6570\u636e\u7684\u534f\u8bae\u3002<\/p>\n

    IP \u534f\u8bae\u72ec\u7acb\u4e8e\u5e95\u5c42\u4ecb\u8d28\uff0c\u5b9e\u73b0\u4ece\u6e90\u5230\u76ee\u7684\u7684\u6570\u636e\u8f6c\u53d1IP \u534f\u8bae\u4e0d\u5177\u6709\u91cd\u53d1\u673a\u5236<\/strong>\uff0c\u5c5e\u4e8e\u975e\u53ef\u9760\u6027\u4f20\u8f93\u534f\u8bae<\/strong>\u3002<\/p>\n

    ICMP<\/h5>\n

    \u7528\u4e8e\u5728IP\u4e3b\u673a\u3001\u8def\u7531\u5668\u4e4b\u95f4\u4f20\u9012\u63a7\u5236\u6d88\u606f<\/strong>\uff0c\u7528\u6765\u8bca\u65ad\u7f51\u7edc\u7684\u5065\u5eb7\u72b6\u51b5<\/strong>\u3002<\/p>\n

    ARP<\/h5>\n

    \u4ece\u6570\u636e\u5305\u7684IP\u5730\u5740\u4e2d\u89e3\u6790\u51faMAC\u5730\u5740<\/strong>\u7684\u4e00\u79cd\u534f\u8bae\u3002<\/p>\n

    \u4f20\u8f93\u5c42<\/h4>\n

    \u76f8\u5f53\u4e8e OSI \u6a21\u578b\u4e2d\u7684\u7b2c 4 \u5c42\u4f20\u8f93\u5c42\uff0c\u4e3b\u8981\u529f\u80fd\u5c31\u662f\u8ba9\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u4e92\u76f8\u901a\u4fe1\uff0c\u901a\u8fc7\u7aef\u53e3\u53f7\u8bc6\u522b\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u7528\u7684\u534f\u8bae\u6709\u9762\u5411\u8fde\u63a5\u7684 TCP \u534f\u8bae\u548c\u9762\u5411\u65e0\u8fde\u63a5\u7684 UDP \u534f\u8bae<\/strong>\u3002<\/p>\n

    \u9762\u5411\u8fde\u63a5\uff1a<\/h5>\n

    \u5728\u53d1\u9001\u6570\u636e\u4e4b\u524d\uff0c \u5728\u6536\u53d1\u4e3b\u673a\u4e4b\u95f4\u8fde\u63a5\u4e00\u6761\u903b\u8f91\u901a\u4fe1\u94fe\u8def\u3002\u597d\u6bd4\u5e73\u5e38\u6253\u7535\u8bdd\uff0c\u8f93\u5165\u5b8c\u5bf9\u65b9\u7535\u8bdd\u53f7\u7801\u62e8\u51fa\u4e4b\u540e\uff0c\u53ea\u6709\u5bf9\u65b9\u63a5\u901a\u7535\u8bdd\u624d\u80fd\u771f\u6b63\u901a\u8bdd\uff0c\u901a\u8bdd\u7ed3\u675f\u540e\u5c06\u7535\u8bdd\u673a\u6263\u4e0a\u5c31\u5982\u540c\u5207\u65ad\u7535\u6e90\u3002<\/p>\n

    \u9762\u5411\u65e0\u8fde\u63a5\uff1a<\/h5>\n

    \u4e0d\u8981\u6c42\u5efa\u7acb\u548c\u65ad\u5f00\u8fde\u63a5\u3002\u53d1\u9001\u7aef\u53ef\u4e8e\u4efb\u4f55\u65f6\u5019\u81ea\u7531\u53d1\u9001\u6570\u636e\u3002\u5982\u540c\u53bb\u5bc4\u4fe1\uff0c\u4e0d\u9700\u8981\u786e\u8ba4\u6536\u4ef6\u4eba\u4fe1\u606f\u662f\u5426\u771f\u5b9e\u5b58\u5728\uff0c\u4e5f\u4e0d\u9700\u8981\u786e\u8ba4\u6536\u4ef6\u4eba\u662f\u5426\u80fd\u6536\u5230\u4fe1\u4ef6\uff0c\u53ea\u8981\u6709\u4e2a\u5bc4\u4ef6\u5730\u5740\u5c31\u53ef\u4ee5\u5bc4\u4fe1\u4e86\u3002<\/p>\n

    TCP<\/h5>\n

    TCP \u662f\u4e00\u79cd\u9762\u5411\u6709\u8fde\u63a5\u7684\u4f20\u8f93\u5c42\u534f\u8bae\uff0c\u80fd\u591f\u5bf9\u81ea\u5df1\u63d0\u4f9b\u7684\u8fde\u63a5\u5b9e\u65bd\u63a7\u5236\u3002\u9002\u7528\u4e8e\u8981\u6c42\u53ef\u9760\u4f20\u8f93\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u6587\u4ef6\u4f20\u8f93\u3002<\/p>\n

    UDP<\/h5>\n

    UDP \u662f\u4e00\u79cd\u9762\u5411\u65e0\u8fde\u63a5\u7684\u4f20\u8f93\u5c42\u534f\u8bae\uff0c\u4e0d\u4f1a\u5bf9\u81ea\u5df1\u63d0\u4f9b\u7684\u8fde\u63a5\u5b9e\u65bd\u63a7\u5236\u3002\u9002\u7528\u4e8e\u5b9e\u65f6\u5e94\u7528\uff0c\u4f8b\u5982: IP\u7535\u8bdd\u3001\u89c6\u9891\u4f1a\u8bae\u3001\u76f4\u64ad\u7b49\u3002<\/p>\n

    \u5e94\u7528\u5c42<\/h4>\n

    \u76f8\u5f53\u4e8e OSI \u6a21\u578b\u4e2d\u7684\u7b2c 5 - 7 \u5c42\u7684\u96c6\u5408\uff0c\u4e0d\u4ec5\u8981\u5b9e\u73b0 OSI \u6a21\u578b\u5e94\u7528\u5c42\u7684\u529f\u80fd\uff0c\u8fd8\u8981\u5b9e\u73b0\u4f1a\u8bdd\u5c42\u548c\u8868\u793a\u5c42\u7684\u529f\u80fd\u3002 <\/p>\n

    HTTP \u3001 POP3 \u3001 TELNET \u3001SSHFTP .SNMP\u90fd\u662f\u5e94\u7528\u5c42\u534f\u8bae\u3002<\/p>\n

    TCP\/IP \u5e94\u7528\u7684\u67b6\u6784\u7edd\u5927\u591a\u6570\u5c5e\u4e8e\u5ba2\u6237\u7aef\/\u670d\u52a1\u7aef\u6a21\u578b\u3002 \u63d0\u4f9b\u670d\u52a1\u7684\u7a0b\u5e8f\u53eb\u670d\u52a1\u7aef\u63a5\u53d7\u670d\u52a1\u7684\u7a0b\u5e8f\u53eb\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u53ef\u4ee5\u968f\u65f6\u53d1\u9001\u8bf7\u6c42\u7ed9\u670d\u52a1\u7aef\u3002<\/p>\n

    HTTP<\/h5>\n

    \u662f WWW \u6d4f\u89c8\u5668\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u5e94\u7528\u5c42\u901a\u4fe1\u534f\u8bae\uff0c\u6240\u4f20\u8f93\u6570\u636e\u7684\u4e3b\u8981\u683c\u5f0f\u662fHTTP \u5b9a\u4e49\u9ad8\u7ea7\u547d\u4ee4\u6216\u8005\u65b9\u6cd5\u4f9b\u6d4f\u89c8\u5668\u7528\u6765\u4e0eWeb\u670d\u52a1\u5668\u901a\u4fe1HTML \u3002<\/p>\n

    POP3<\/h5>\n

    \u7b80\u5355\u90ae\u4ef6\u4f20\u8f93\u534f\u8bae\uff0c\u90ae\u4ef6\u5ba2\u6237\u7aef\u548c\u90ae\u4ef6\u670d\u52a1\u5668\u4f7f\u7528\u3002<\/p>\n

    TELNET \u548c SSH<\/h5>\n

    \u8fdc\u7a0b\u7ec8\u7aef\u534f\u8bae\uff0c\u7528\u4e8e\u8fdc\u7a0b\u7ba1\u7406\u7f51\u7edc\u8bbe\u5907\u3002TELNET \u662f\u660e\u6587\u4f20\u8f93\uff0cSSH \u662f\u52a0\u5bc6\u4f20\u8f93\u3002<\/p>\n

    SNMP<\/h5>\n

    \u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae\uff0c\u7528\u4e8e\u7f51\u7ba1\u8f6f\u4ef6\u8fdb\u884c\u7f51\u7edc\u8bbe\u5907\u7684\u76d1\u63a7\u548c\u7ba1\u7406\u3002<\/p>\n

    \u5c01\u88c5\u4e0e\u89e3\u5c01\u88c5<\/h4>\n

    \u901a\u5e38\uff0c\u4e3a\u534f\u8bae\u63d0\u4f9b\u7684\u4fe1\u606f\u4e3a\u5305\u5934\u90e8\uff0c\u6240\u8981\u53d1\u9001\u7684\u5185\u5bb9\u4e3a\u6570\u636e\u3002\u6bcf\u4e2a\u5206\u5c42\u4e2d\uff0c\u90fd\u4f1a\u5bf9\u6240\u53d1\u9001\u7684\u6570\u636e\u9644\u52a0\u4e00\u4e2a\u5934\u90e8\uff0c\u5728\u8fd9\u4e2a\u5934\u90e8\u4e2d\u5305\u542b\u4e86\u8be5\u5c42\u5fc5\u8981\u7684\u4fe1\u606f\uff0c \u5982\u53d1\u9001\u7684\u76ee\u6807\u5730\u5740\u4ee5\u53ca\u534f\u8bae\u76f8\u5173\u4fe1\u606f\u3002\u5728\u4e0b\u4e00\u5c42\u7684\u89d2\u5ea6\u770b\uff0c\u4ece\u4e0a\u4e00\u5206\u5c42\u6536\u5230\u7684\u5305\u5168\u90e8\u90fd\u88ab\u8ba4\u4e3a\u662f\u672c\u5c42\u7684\u6570\u636e\u3002<\/p>\n

    \u5c01\u88c5<\/h5>\n

    \u6570\u636e\u53d1\u9001\u524d\uff0c\u6309\u7167\u53c2\u8003\u6a21\u578b\u4ece\u4e0a\u5230\u4e0b\uff0c\u5728\u6570\u636e\u7ecf\u8fc7\u6bcf\u4e00\u5c42\u65f6\uff0c\u6dfb\u52a0\u534f\u8bae\u62a5\u6587\u5934\u90e8\u4fe1\u606f\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u53eb\u5c01\u88c5\u3002<\/p>\n

    \"image-20230904142151934\"<\/div><\/p>\n
    \u89e3\u5c01\u88c5<\/h5>\n

    \u6570\u636e\u63a5\u6536\u540e\uff0c\u6309\u7167\u53c2\u8003\u6a21\u578b\u4ece\u4e0b\u5230\u4e0a\uff0c\u5728\u6570\u636e\u7ecf\u8fc7\u6bcf\u4e00\u5c42\u65f6\uff0c\u53bb\u6389\u534f\u8bae\u5934\u90e8\u4fe1\u606f\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u53eb\u89e3\u5c01\u88c5\u3002<\/p>\n

    \"image-20230904142241918\"<\/div><\/p>\n

    \u7ecf\u8fc7\u4f20\u8f93\u5c42\u534f\u8bae\u5c01\u88c5\u540e\u7684\u6570\u636e\u79f0\u4e3a\u6bb5<\/strong>\uff0c\u7ecf\u8fc7\u7f51\u7edc\u5c42\u534f\u8bae\u5c01\u88c5\u540e\u7684\u6570\u636e\u79f0\u4e3a\u5305\uff0c\u7ecf\u8fc7\u6570\u636e\u94fe\u8def\u5c42\u534f\u8bae\u5c01\u88c5\u540e\u7684\u6570\u636e\u79f0\u4e3a\u5e27<\/strong>\uff0c\u7269\u7406\u5c42\u4f20\u8f93\u7684\u6570\u636e\u4e3a\u6bd4\u7279<\/strong>\u3002<\/p>\n

    TCP\/IP \u901a\u4fe1\u4e2d\u4f7f\u7528 MAC \u5730\u5740\u3001 IP \u5730\u5740\u3001\u7aef\u53e3\u53f7<\/strong>\u7b49\u4fe1\u606f\u4f5c\u4e3a\u5730\u5740\u6807\u8bc6<\/strong>\u3002\u751a\u81f3\u5728\u5e94\u7528\u5c42\u4e2d\uff0c\u53ef\u4ee5\u5c06\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u4f5c\u4e3a\u7f51\u7edc\u901a\u4fe1\u7684\u5730\u5740<\/strong>\u3002<\/p>\n

    \u5b9e\u9645\u6570\u636e\u4f20\u8f93\u4e3e\u4f8b<\/h4>\n

    \"image-20230904142820260\"<\/div><\/p>\n
    \u53d1\u9001\u6570\u636e\u5305<\/h5>\n

    \u8bbf\u95ee HTTP \u7f51\u7ad9\u9875\u9762\u65f6\uff0c\u6253\u5f00\u6d4f\u89c8\u5668\uff0c\u8f93\u5165\u7f51\u5740\uff0c\u6572\u4e0b\u56de\u8f66\u952e\u5c31\u5f00\u59cb\u8fdb\u884cTCP\/IP \u901a\u4fe1\u4e86\u3002<\/p>\n

    \u5e94\u7528\u7a0b\u5e8f\u5904\u7406<\/h6>\n

    \"image-20230904143522696\"<\/div><\/p>\n

    \u9996\u5148\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f1a\u8fdb\u884c HTML \u683c\u5f0f\u7f16\u7801\u5904\u7406\uff0c\u76f8\u5f53\u4e8e OSI \u7684\u8868\u793a\u5c42\u529f\u80fd\u7f16\u7801\u8f6c\u5316\u540e\uff0c\u4e0d\u4e00\u5b9a\u4f1a\u9a6c\u4e0a\u53d1\u9001\u51fa\u53bb\uff0c\u76f8\u5f53\u4e8e\u4f1a\u8bdd\u5c42\u7684\u529f\u80fd\u3002\u5728\u8bf7\u6c42\u53d1\u9001\u7684\u90a3\u4e00\u523b\uff0c\u5efa\u7acb TCP \u8fde\u63a5\uff0c\u7136\u540e\u5728 TCP \u8fde\u63a5\u4e0a\u53d1\u9001\u6570\u636e\u3002\u63a5\u4e0b\u6765\u5c31\u662f\u5c06\u6570\u636e\u53d1\u9001\u7ed9\u4e0b\u4e00\u5c42\u7684 TCP \u8fdb\u884c\u5904\u7406\u3002<\/p>\n

    TCP\u6a21\u5757\u5904\u7406<\/h6>\n

    \"image-20230904143627708\"<\/div><\/p>\n

    TCP \u4f1a\u5c06\u5e94\u7528\u5c42\u53d1\u6765\u7684\u6570\u636e\u987a\u5229\u7684\u53d1\u9001\u81f3\u76ee\u7684\u5730\u3002\u5b9e\u73b0\u53ef\u9760\u4f20\u8f93\u7684\u529f\u80fd\uff0c\u9700\u8981\u7ed9\u6570\u636e\u5c01\u88c5 TCP \u5934\u90e8\u4fe1\u606f\u3002 TCP \u5934\u90e8\u4fe1\u606f\u5305\u62ec\u6e90\u7aef\u53e3\u53f7\u548c\u76ee\u7684\u7aef\u53e3\u53f7 (\u8bc6\u522b\u4e3b\u673a\u4e0a\u5e94\u7528)\u3001\u5e8f\u53f7 (\u786e\u8ba4\u54ea\u90e8\u5206\u662f\u6570\u636e) \u4ee5\u53ca\u6821\u9a8c\u548c (\u5224\u65ad\u6570\u636e\u662f\u5426\u88ab\u635f\u574f)\u3002\u968f\u540e\u5c01\u88c5\u4e86 TCP \u5934\u90e8\u4fe1\u606f\u7684\u6bb5\u518d\u53d1\u9001\u7ed9 IP\u3002<\/p>\n

    IP\u6a21\u5757\u5904\u7406<\/h6>\n

    \"image-20230904143946690\"<\/div><\/p>\n

    IP \u5c06 TCP \u4f20\u8fc7\u6765\u7684\u6570\u636e\u6bb5\u5f53\u505a\u81ea\u5df1\u7684\u6570\u636e\uff0c\u5e76\u5c01\u88c5 IP \u5934\u90e8\u4fe1\u606f\u3002 IP \u5934\u90e8\u4fe1\u606f\u4e2d\u5305\u542b\u76ee\u7684 IP \u5730\u5740\u548c\u6e90 IP \u5730\u5740\uff0c\u4ee5\u53ca\u4e0a\u5c42\u534f\u8bae\u7c7b\u578b\u4fe1\u606f
    \nIP \u5305\u751f\u6210\u540e\uff0c\u6839\u636e\u4e3b\u673a\u8def\u7531\u8868<\/strong>\u8fdb\u884c\u6570\u636e\u53d1\u9001\u3002<\/p>\n

    \u7f51\u7edc\u63a5\u53e3\u5904\u7406<\/h6>\n

    \"image-20230904144025382\"<\/div><\/p>\n

    \u7f51\u7edc\u63a5\u53e3\u5bf9\u4f20\u8fc7\u6765\u7684 IP \u5305\u5c01\u88c5\u4e0a\u4ee5\u592a\u7f51\u5934\u90e8\u4fe1\u606f\u5e76\u8fdb\u884c\u53d1\u9001\u5904\u7406\u3002\u4ee5\u592a\u7f51\u5934\u90e8\u4fe1\u606f\u5305\u542b\u76ee\u7684 MAC \u5730\u5740\u3001\u6e90 MAC \u5730\u5740\uff0c\u4ee5\u53ca\u4e0a\u5c42\u534f\u8bae\u7c7b\u578b\u4fe1\u606f<\/strong>\u3002\u7136\u540e\u5c06\u4ee5\u592a\u7f51\u6570\u636e\u987f\u901a\u8fc7\u7269\u7406\u5c42\u4f20\u8f93\u7ed9\u63a5\u6536\u7aef\u3002\u53d1\u9001\u5904\u7406\u4e2d\u7684 FCS \u7531\u786c\u4ef6\u8ba1\u7b97\uff0c \u6dfb\u52a0\u5230\u5305\u7684\u6700\u540e\u3002\u8bbe\u7f6e FCS \u7684\u76ee\u7684\u662f\u4e3a\u4e86\u5224\u65ad\u6570\u636e\u5305\u662f\u5426\u7531\u4e8e\u566a\u58f0\u800c\u88ab\u7834\u574f\u3002<\/p>\n

    \u63a5\u6536\u6570\u636e\u5305<\/h5>\n

    \u5305\u7684\u63a5\u6536\u6d41\u7a0b\u662f\u53d1\u9001\u6d41\u7a0b\u7684\u53cd\u5411\u8fc7\u7a0b\u3002<\/p>\n

    \u7f51\u7edc\u63a5\u53e3\u5904\u7406<\/h6>\n

    \u6536\u5230\u4ee5\u592a\u7f51\u5305\u540e\uff0c\u9996\u5148\u770b\u5934\u90e8\u4fe1\u606f\u7684\u76ee\u7684 MAC \u5730\u5740\u662f\u5426\u662f\u53d1\u7ed9\u81ea\u5df1\u7684\u5305\u3002\u5982\u679c\u4e0d\u662f\u53d1\u9001\u7ed9\u81ea\u5df1\u7684\u5305\u5c31\u4e22\u5f03\u3002\u5982\u679c\u662f\u53d1\u9001\u7ed9\u81ea\u5df1\u7684\u5305\uff0c\u67e5\u770b\u4e0a\u5c42\u534f\u8bae\u7c7b\u578b\u662fIP \u5305\uff0c\u4ee5\u592a\u7f51\u987f\u89e3\u5c01\u88c5\u6210 IP \u5305\uff0c\u4f20\u7ed9 IP \u6a21\u5757\u8fdb\u884c\u5904\u7406\u3002\u5982\u679c\u662f\u65e0\u6cd5\u8bc6\u522b\u7684\u534f\u8bae\u7c7b\u578b\uff0c\u5219\u4e22\u5f03\u6570\u636e\u3002<\/p>\n

    \"image-20230904145612198\"<\/div><\/p>\n
    IP\u6a21\u5757\u5904\u7406<\/h6>\n

    \u6536\u5230 IP \u5305\u540e\uff0c\u8fdb\u884c\u7c7b\u4f3c\u5904\u7406\u3002\u6839\u636e\u5934\u90e8\u4fe1\u606f\u7684\u76ee\u7684 IP \u5730\u5740\u5224\u65ad\u662f\u5426\u662f\u53d1\u9001\u7ed9\u81ea\u5df1\u5305\uff0c\u5982\u679c\u662f\u53d1\u9001\u7ed9\u81ea\u5df1\u7684\u5305\uff0c\u5219\u67e5\u770b\u4e0a\u4e00\u5c42\u7684\u534f\u8bae\u7c7b\u578b\u3002\u4e0a\u4e00\u5c42\u534f\u8bae\u662f\uff0c\u5c31\u628a IP \u5305\u89e3\u5c01\u88c5\u53d1\u9001\u7ed9 TCP \u534f\u8bae\u5904\u7406TCP\u3002<\/p>\n

    \"image-20230904150830695\"<\/div><\/p>\n

    \u5047\u5982\u6709\u8def\u7531\u5668\uff0c\u4e14\u63a5\u6536\u7aef\u4e0d\u662f\u81ea\u5df1\u7684\u5730\u5740\uff0c\u90a3\u4e48\u6839\u636e\u8def\u7531\u63a7\u5236\u8868\u8f6c\u53d1\u6570\u636e\u3002<\/p>\n

    TCP\u6a21\u5757\u5904\u7406<\/h6>\n

    \u6536\u5230 TCP \u6bb5\u540e\uff0c\u9996\u5148\u67e5\u770b\u6821\u9a8c\u548c\uff0c\u5224\u65ad\u6570\u636e\u662f\u5426\u88ab\u7834\u574f\u3002\u7136\u540e\u68c0\u67e5\u662f\u5426\u6309\u7167\u5e8f\u53f7\u63a5\u6536\u6570\u636e\u3002\u6700\u540e\u68c0\u67e5\u7aef\u53e3\u53f7\uff0c\u786e\u5b9a\u5177\u4f53\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

    \u786e\u8ba4\u56de\u6267 \u201d\u7ed9\u53d1\u9001\u7aef\u3002\u5982\u679c\u8fd9\u4e2a\u56de\u6267\u4fe1\u606f\u672a\u80fd\u8fbe\u6570\u636e\u63a5\u6536\u5b8c\u6bd5\u540e\uff0c\u53d1\u9001\u4e00\u4e2a\u5230\u53d1\u9001\u7aef\uff0c\u90a3\u4e48\u53d1\u9001\u7aef\u4f1a\u8ba4\u4e3a\u63a5\u6536\u7aef\u6ca1\u6709\u63a5\u6536\u5230\u6570\u636e\u800c\u4e00\u76f4\u53cd\u590d\u53d1\u9001
    \n\u6570\u636e\u88ab\u5b8c\u6574\u63a5\u6536\u540e\uff0c\u4f1a\u628a TCP \u6bb5\u89e3\u5c01\u88c5\u53d1\u9001\u7ed9\u7531\u7aef\u53e3\u53f7\u8bc6\u522b\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

    \u5e94\u7528\u7a0b\u5e8f\u5904\u7406<\/h6>\n

    \u5e94\u7528\u7a0b\u5e8f\u6536\u5230\u6570\u636e\u540e\uff0c\u901a\u8fc7\u89e3\u6790\u6570\u636e\u5185\u5bb9\u83b7\u77e5\u53d1\u9001\u7aef\u8bf7\u6c42\u7684\u7f51\u9875\u5185\u5bb9\uff0c\u7136\u540e\u6309\u7167HTTP \u534f\u8bae\u8fdb\u884c\u540e\u7eed\u6570\u636e\u4ea4\u4e92\u3002<\/p>\n

    \u7f51\u7edc\u6784\u6210<\/h3>\n

    \"image-20230904151142957\"<\/div><\/p>\n

    \u5e38\u89c1\u7684\u786c\u4ef6\u8bbe\u5907<\/h4>\n\n\n\n\n\n\n\n\n
    \u8bbe\u5907<\/th>\n\u4f5c\u7528<\/th>\n<\/tr>\n<\/thead>\n
    \u7f51\u5361<\/td>\n\u4f7f\u8ba1\u7b97\u673a\u8fde\u7f51\u7684\u8bbe\u5907<\/td>\n<\/tr>\n
    \u4e8c\u5c42\u4ea4\u6362\u673a<\/td>\n\u4ece\u6570\u636e\u94fe\u8def\u5c42\u4e0a\u5ef6\u957f\u7f51\u7edc\u7684\u8bbe\u5907<\/td>\n<\/tr>\n
    \u8def\u7531\u5668\/\u4e09\u5c42\u4ea4\u6362\u673a<\/td>\n\u901a\u8fc7\u7f51\u7edc\u5c42\u8f6c\u53d1\u6570\u636e\u7684\u8bbe\u5907<\/td>\n<\/tr>\n
    \u56db\u81f3\u4e03\u5c42\u4ea4\u6362\u673a<\/td>\n\u5904\u7406\u4f20\u8f93\u5c42\u4ee5\u4e0a\u5404\u5c42\u7f51\u7edc\u4f20\u8f93\u7684\u8bbe\u5907<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u901a\u4fe1\u4ecb\u8d28\u4e0e\u6570\u636e\u94fe\u8def<\/h4>\n

    \u8bbe\u5907\u4e4b\u95f4\u901a\u8fc7\u7ebf\u7f06\u8fdb\u884c\u8fde\u63a5\u3002\u6709\u7ebf\u7ebf\u7f06\u6709\u53cc\u7ede\u7ebf\u3001\u5149\u7ea4\u3001\u4e32\u53e3\u7ebf\u7b49\u3002\u6839\u636e\u6570\u636e\u94fe\u8def\u4e0d\u540c\u9009\u62e9\u5bf9\u5e94\u7684\u7ebf\u7f06\u3002\u4f20\u8f93\u4ecb\u8d28\u8fd8\u53ef\u4ee5\u88ab\u5206\u4e3a\u7535\u6ce2\u3001\u5fae\u6ce2\u7b49\u4e0d\u540c\u7c7b\u578b\u7684\u7535\u78c1\u6ce2\u3002<\/p>\n

    \u4f20\u8f93\u901f\u7387:<\/h5>\n

    \u5355\u4f4d\u4e3a bps\uff0c\u662f\u6307\u5355\u4f4d\u65f6\u95f4\u5185\u4f20\u8f93\u7684\u6570\u636e\u91cf\u6709\u591a\u5c11\u3002\u53c8\u79f0\u4f5c\u5e26\u5bbd\uff0c\u5e26\u5bbd\u8d8a\u5927\u7f51\u7edc\u4f20\u8f93\u80fd\u529b\u5c31\u8d8a\u5f3a\u3002<\/p>\n

    \u541e\u5410\u91cf:<\/h5>\n

    \u5355\u4f4d\u4e3a bps \uff0c\u4e3b\u673a\u4e4b\u95f4\u5b9e\u9645\u7684\u4f20\u8f93\u901f\u7387\u3002\u541e\u5410\u91cf\u8fd9\u4e2a\u8bcd\u4e0d\u4ec5\u8861\u91cf\u5e26\u5bbd\uff0c \u540c\u65f6\u4e5f\u8861\u91cf\u4e3b\u673a\u7684 CPU \u5904\u7406\u80fd\u529b\u3001\u7f51\u7edc\u7684\u62e5\u5835\u7a0b\u5ea6\u3001\u62a5\u6587\u4e2d\u6570\u636e\u5b57\u6bb5\u7684\u5360\u6709\u4efd\u989d\u7b49\u4fe1\u606f\u3002<\/p>\n

    \u7f51\u5361<\/h4>\n

    \u4efb\u4e00\u4e3b\u673a\u8fde\u63a5\u7f51\u7edc\u65f6\uff0c\u5fc5\u987b\u8981\u4f7f\u7528\u7f51\u5361\u3002\u53ef\u4ee5\u662f\u6709\u7ebf\u7f51\u5361\uff0c\u7528\u6765\u8fde\u63a5\u6709\u7ebf\u7f51\u7edc\u4e5f\u53ef\u4ee5\u662f\u65e0\u7ebf\u7f51\u5361\u8fde\u63a5 WiFi \u7f51\u7edc\u3002\u6bcf\u5757\u7f51\u5361\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684 MAC \u5730\u5740\uff0c\u4e5f\u53eb\u505a\u786c\u4ef6\u5730\u5740\u6216\u7269\u7406\u5730\u5740\u3002<\/p>\n

    \u4e8c\u5c42\u4ea4\u6362\u673a<\/h4>\n

    \"image-20230904151623231\"<\/div><\/p>\n

    \u4e8c\u5c42\u4ea4\u6362\u673a\u4f4d\u4e8e OSI \u6a21\u578b\u7684\u7b2c 2 \u5c42 (\u6570\u636e\u94fe\u8def\u5c42) \u3002<\/p>\n

    \u5b83\u80fd\u591f\u8bc6\u522b\u6570\u636e\u94fe\u8def\u5c42\u4e2d\u7684\u6570\u636e\u5e27\uff0c\u5e76\u5c06\u5e27\u8f6c\u53d1\u7ed9\u76f8\u8fde\u7684\u53e6\u4e00\u4e2a\u6570\u636e\u94fe\u8def\u3002\u6570\u636e\u5e27\u4e2d\u6709\u4e00\u4e2a\u6570\u636e\u4f4d\u53eb\u505a FCS\uff0c\u7528\u4ee5\u6821\u9a8c\u6570\u636e\u662f\u5426\u6b63\u786e\u9001\u8fbe\u76ee\u7684\u5730\u3002<\/p>\n

    \u4e8c\u5c42\u4ea4\u6362\u673a\u901a\u8fc7\u68c0\u67e5\u8fd9\u4e2a\u503c\uff0c\u5c06\u635f\u574f\u7684\u6570\u636e\u4e22\u5f03\u3002\u4e8c\u5c42\u4ea4\u6362\u673a\u6839\u636e MAC \u5730\u5740\u81ea\u5b66\u673a\u5236\u5224\u65ad\u662f\u5426\u9700\u8981\u8f6c\u53d1\u6570\u636e\u5e27\u3002<\/p>\n

    \u8def\u7531\u5668\/\u4e09\u5c42\u4ea4\u6362\u673a<\/h4>\n

    \u8def\u7531\u5668\u662f\u5728 OSI \u6a21\u578b\u7684\u7b2c 3 \u5c42 (\u7f51\u7edc\u5c42) \u4e0a\u8fde\u63a5\u4e24\u4e2a\u7f51\u7edc\u3001\u5e76\u5bf9\u62a5\u6587\u8fdb\u884c\u8f6c\u53d1<\/strong>\u7684\u8bbe\u5907\u3002<\/p>\n

    \u4e8c\u5c42\u4ea4\u6362\u673a\u662f\u6839\u636e MAC \u5730\u5740\u8fdb\u884c\u5904\u7406\uff0c\u800c\u8def\u7531\u5668 \/ \u4e09\u5c42\u4ea4\u6362\u673a\u5219\u662f\u6839\u636e IP \u5730\u5740\u8fdb\u884c\u5904\u7406<\/strong>\u7684\u3002 \u56e0\u6b64 TCP\/IP \u4e2d\u7f51\u7edc\u5c42\u7684\u5730\u5740\u5c31\u6210\u4e3a\u4e86 IP \u5730\u5740\u3002
    \n\u8def\u7531\u5668\u53ef\u4ee5\u8fde\u63a5\u4e0d\u540c\u7684\u6570\u636e\u94fe\u8def<\/strong>\u3002\u6bd4\u5982\u8fde\u63a5\u4e24\u4e2a\u4ee5\u592a\u7f51\uff0c\u6216\u8005\u8fde\u63a5\u4e00\u4e2a\u4ee5\u592a\u7f51\u4e0e\u4e2a\u65e0\u7ebf\u7f51\u3002\u5bb6\u5ead\u91cc\u9762\u5e38\u89c1\u7684\u65e0\u7ebf\u8def\u7531\u5668\u4e5f\u662f\u8def\u7531\u5668\u7684\u4e00\u79cd\u3002<\/p>\n

    \u56db\u81f3\u4e03\u5c42\u4ea4\u6362\u673a<\/h4>\n

    \"image-20230904152025938\"<\/div><\/p>\n

    \u56db\u81f3\u4e03\u5c42\u4ea4\u6362\u673a\u8d1f\u8d23\u5904\u7406 OSI \u6a21\u578b\u4e2d\u4ece\u4f20\u8f93\u5c42\u81f3\u5e94\u7528\u5c42\u7684\u6570\u636e\u3002\u4ee5 TCP \u7b49\u534f\u8bae\u7684\u4f20\u8f93\u5c42\u53ca\u5176\u4e0a\u9762\u7684\u5e94\u7528\u5c42\u4e3a\u57fa\u7840\uff0c\u5206\u6790\u6536\u53d1\u6570\u636e\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u7279\u5b9a\u7684\u5904\u7406\u3002\u4f8b\u5982\uff0c\u89c6\u9891\u7f51\u7ad9\u7684\u4e00\u53f0\u670d\u52a1\u5668\u4e0d\u80fd\u6ee1\u8db3\u8bbf\u95ee\u9700\u6c42\uff0c\u901a\u8fc7\u8d1f\u8f7d\u5747\u8861<\/strong>\u8bbe\u5907\u5c06\u8bbf\u95ee\u5206\u53d1\u5230\u540e\u53f0\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u5c31\u662f\u56db\u81f3\u4e03\u5c42\u4ea4\u6362\u673a\u7684\u4e00\u79cd\u3002\u8fd8\u6709\u5e26\u5bbd\u63a7\u5236\u3001\u5e7f\u57df\u7f51\u52a0\u901f\u5668\u3001\u9632\u706b\u5899\u7b49\u5e94\u7528\u573a\u666f\u3002<\/p>\n

    \u603b\u7ed3<\/h4>\n

    \"image-20230904152142408\"<\/div><\/p>\n

    \u5e94\u7528\u5c42\u8bbe\u5907\u6709\u7535\u8111\u3001\u624b\u673a\u3001\u670d\u52a1\u5668\u7b49\u3002\u5e94\u7528\u5c42\u8bbe\u5907\u4e0d\u8f6c\u53d1\u6570\u636e\uff0c\u5b83\u4eec\u662f\u6570\u636e\u7684\u6e90\u6216\u76ee\u7684\uff0c\u62e5\u6709\u5e94\u7528\u5c42\u4ee5\u4e0b\u7684\u5404\u5c42\u529f\u80fd\u3002<\/strong><\/p>\n

    \u53d1\u9001\u6570\u636e\u65f6\uff0c\u4ece\u4e0a\u800c\u4e0b\u7684\u987a\u5e8f\uff0c\u9010\u5c42\u5bf9\u6570\u636e\u8fdb\u884c\u5c01\u88c5\uff0c\u518d\u901a\u8fc7\u4ee5\u592a\u7f51\u5c06\u6570\u636e\u53d1\u9001\u51fa\u53bb\u3002\u63a5\u6536\u6570\u636e\u65f6\uff0c\u4ece\u4e0b\u800c\u4e0a\u7684\u987a\u5e8f\uff0c\u9010\u5c42\u5bf9\u6570\u636e\u8fdb\u884c\u89e3\u5c01\u88c5\uff0c\u6700\u7ec8\u6062\u590d\u6210\u539f\u59cb\u6570\u636e\u3002<\/strong><\/p>\n

    \u6570\u636e\u94fe\u8def\u5c42\u8bbe\u5907\u6709\u4e8c\u5c42\u4ea4\u6362\u673a\u3001\u7f51\u6865\u7b49\u3002\u4e8c\u5c42\u7f51\u7edc\u8bbe\u5907\u53ea\u8f6c\u53d1\u6570\u636e<\/strong>\uff0c\u901a\u8fc7\u8bc6\u522b\u6570\u636e\u7684 MAC \u5730\u5740\u8fdb\u884c\u8f6c\u53d1\u3002\u4e8c\u5c42\u4ea4\u6362\u673a\u63a5\u6536\u6570\u636e\u540e\uff0c\u5bf9\u6570\u636e\u6700\u5916\u5c42\u5c01\u88c5\u7684\u4ee5\u592a\u7f51\u5934\u90e8\u4fe1\u606f\u8fdb\u884c\u67e5\u770b\uff0c\u770b\u5230\u6570\u636e\u7684\u76ee\u7684 MAC \u5730\u5740\u540e\uff0c\u628a\u6570\u636e\u987f\u4ece\u5bf9\u5e94\u7aef\u53e3\u53d1\u9001\u51fa\u53bb\u3002\u4ea4\u6362\u673a\u5e76\u4e0d\u4f1a\u5bf9\u6570\u636e\u987f\u8fdb\u884c\u89e3\u5c01\u88c5\uff0c\u53ea\u8981\u77e5\u9053 MAC \u5730\u5740\u4fe1\u606f\u5c31\u53ef\u4ee5\u6b63\u786e\u5730\u5c06\u6570\u636e\u8f6c\u53d1\u51fa\u53bb\u3002<\/p>\n

    \u7f51\u7edc\u5c42\u8bbe\u5907\u6709\u8def\u7531\u5668\u3001\u4e09\u5c42\u4ea4\u6362\u673a\u7b49\u3002\u4e09\u5c42\u7f51\u7edc\u8bbe\u5907\u53ea\u8f6c\u53d1\u6570\u636e<\/strong>\uff0c\u901a\u8fc7\u8bc6\u522b\u6570\u636e\u7684 IP \u5730\u5740\u8fdb\u884c\u8f6c\u53d1\u3002\u8def\u7531\u5668\u63a5\u6536\u6570\u636e\u540e\uff0c\u9996\u5148\u67e5\u770b\u6700\u5916\u5c42\u5c01\u88c5\u7684\u4ee5\u592a\u7f51\u5934\u90e8\u4fe1\u606f\uff0c\u5f53\u76ee\u7684 MAC \u5730\u5740\u662f\u81ea\u5df1\u65f6\uff0c\u5c31\u4f1a\u5c06\u4ee5\u592a\u7f51\u5934\u90e8\u89e3\u5c01\u88c5\uff0c\u67e5\u770b\u6570\u636e\u7684 IP\u5730\u5740\u3002\u6839\u636e IP \u8def\u7531\u8868\u505a\u51fa\u8f6c\u53d1\u51b3\u5b9a\u65f6\uff0c\u8def\u7531\u5668\u4f1a\u628a\u4e0b\u4e00\u8df3\u8bbe\u5907\u7684 MAC \u5730\u5740\u4f5c\u4e3a\u4ee5\u592a\u7f51\u5934\u90e8\u7684\u76ee\u7684 MAC \u5730\u5740\uff0c\u91cd\u65b0\u5c01\u88c5\u4ee5\u592a\u7f51\u5934\u90e8\u5e76\u5c06\u6570\u636e\u8f6c\u53d1\u51fa\u53bb\u3002<\/p>\n

    \u4e8c\u3001\u6570\u636e\u94fe\u8def\u5c42<\/h2>\n

    \"image-20230904153312055\"<\/div><\/p>\n

    MAC\u5730\u5740<\/h3>\n

    \u6bcf\u4e2a\u7f51\u5361\u6216\u4e09\u5c42\u7f51\u53e3\u90fd\u6709\u4e00\u4e2a MAC \u5730\u5740\uff0c MAC \u5730\u5740\u662f\u70e7\u5f55\u5230\u786c\u4ef6\u4e0a\uff0c\u56e0\u6b64\u4e5f\u79f0\u4e3a\u786c\u4ef6\u5730\u5740\u3002<\/p>\n

    MAC \u5730\u5740\u4f5c\u4e3a\u6570\u636e\u94fe\u8def\u8bbe\u5907\u7684\u5730\u5740\u6807\u8bc6\u7b26\uff0c\u9700\u8981\u4fdd\u8bc1\u7f51\u7edc\u4e2d\u7684\u6bcf\u4e2a MAC \u5730\u5740\u90fd\u662f\u552f\u4e00\u7684\uff0c\u624d\u80fd\u6b63\u786e\u8bc6\u522b\u5230\u6570\u636e\u94fe\u8def\u4e0a\u7684\u8bbe\u5907\u3002
    \nMAC \u5730\u5740\u7531 6 \u4e2a\u5b57\u8282\u7ec4\u6210\u3002\u524d 3 \u4e2a\u5b57\u8282\u8868\u793a\u5382\u5546\u8bc6\u522b\u7801\uff0c\u6bcf\u4e2a\u7f51\u5361\u5382\u5546\u90fd\u6709\u7279\u5b9a\u552f\u4e00\u7684\u8bc6\u522b\u6570\u5b57\u3002<\/p>\n

    \u540e 3 \u4e2a\u5b57\u8282\u7531\u5382\u5546\u7ed9\u6bcf\u4e2a\u7f51\u5361\u8fdb\u884c\u5206\u914d\u3002\u5382\u5546\u53ef\u4ee5\u4fdd\u8bc1\u751f\u4ea7\u51fa\u6765\u7684\u7f51\u5361\u4e0d\u4f1a\u6709\u76f8\u540c MAC \u5730\u5740\u7684\u7f51\u5361\u3002<\/p>\n

    \"image-20230904153458004\"<\/div><\/p>\n

    \u73b0\u5728\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u4fee\u6539 MAC \u5730\u5740\uff0c\u865a\u62df\u673a\u4f7f\u7528\u7269\u7406\u673a\u7f51\u5361\u7684 MAC \u5730\u5740\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1 MAC \u5730\u5740\u662f\u552f\u4e00\u7684\u3002\u4f46\u662f\u53ea\u8981 MAC \u5730\u5740\u76f8\u540c\u7684\u8bbe\u5907\u4e0d\u5728\u540c\u4e00\u4e2a\u6570\u636e\u94fe\u8def\u4e0a\u5c31\u6ca1\u95ee\u9898\u3002\u4e3a\u4e86\u67e5\u770b\u65b9\u4fbf\uff0c 6 \u4e2a\u5b57\u8282\u7684 MAC \u5730\u5740\u4f7f\u7528\u5341\u516d\u8fdb\u5236\u6765\u8868\u793a<\/strong>\u3002\u6bcf\u4e2a\u5b57\u8282\u7684 8\u4f4d\u4e8c\u8fdb\u5236\u6570\u5206\u522b\u7528 2 \u4e2a\u5341\u516d\u8fdb\u5236\u6570\u6765\u8868\u793a<\/strong>\uff0c\u4f8b\u5982\uff1aEO06-E6-39-86-31\u3002<\/p>\n

    \u6bd4\u7279<\/h4>\n

    \u82f1\u6587\u540d bit \uff0c\u4e5f\u53eb\u4f4d\u3002\u4e8c\u8fdb\u5236\u4e2d\u6700\u5c0f\u5355\u4f4d\uff0c\u4e00\u4e2a\u6bd4\u7279\u7684\u503c\u662f 0 \u6216 1\u3002<\/p>\n

    \u5b57\u8282<\/h4>\n

    \u82f1\u6587\u540d Byte \u3002\u4e00\u4e2a\u5b57\u8282\u7531\u516b\u4e2a\u6bd4\u7279\u6784\u6210\u5b57\u8282\u3002<\/p>\n

    MAC\u5730\u5740\u4f7f\u7528\u65b9\u5f0f<\/h4>\n

    \u6700\u5e38\u7528\u7684\u4ee5\u592a\u7f51\u548c\u65e0\u7ebf\u5c40\u57df\u7f51\uff0c\u90fd\u662f\u4f7f\u7528 MAC \u5730\u5740\u4f5c\u4e3a\u5730\u5740\u6807\u8bc6\u7b26\u8fdb\u884c\u901a\u4fe1\u7684\u3002<\/p>\n

    \u4ee5\u592a\u7f51<\/h3>\n

    \u6709\u7ebf\u5c40\u57df\u7f51\u4e2d\u666e\u904d\u4f7f\u7528\u4ee5\u592a\u7f51\uff0c\u4ee5\u592a\u7f51\u6807\u51c6\u7b80\u5355\uff0c\u4f20\u8f93\u901f\u7387\u9ad8\u3002\u5e38\u89c1\u7684\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u5982\u4e0b\u56fe\u3002<\/p>\n

    \"image-20230904153853163\"<\/div><\/p>\n

    \u7f51\u7edc\u62d3\u6251<\/h4>\n

    \u7f51\u7edc\u7684\u8fde\u63a5\u548c\u6784\u6210\u7684\u5f62\u6001\u79f0\u4e3a\u7f51\u7edc\u62d3\u6251\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u76f4\u89c2\u7684\u770b\u5230\u7f51\u7edc\u7269\u7406\u8fde\u63a5\u65b9\u5f0f\uff0c\u8fd8\u53ef\u4ee5\u8868\u793a\u7f51\u7edc\u7684\u903b\u8f91\u7ed3\u6784\u3002<\/p>\n

    \u4ee5\u592a\u7f51\u6570\u636e\u683c\u5f0f<\/h4>\n

    \u5f53\u4eca\u6700\u5e38\u7528\u7684\u4ee5\u592a\u7f51\u534f\u8bae\u6807\u51c6\u662fETHERNET II \u6807\u51c6\u3002ETHERNET II \u6807\u51c6\u5b9a\u4e49\u7684\u6570\u636e\u5e27\u683c\u5f0f\u5982\u4e0b\u56fe\u3002<\/p>\n

    \"image-20230904154006754\"<\/div><\/p>\n
    \u524d\u5bfc\u7801\uff08Preamble\uff09<\/h5>\n

    \u524d\u5bfc\u7801\u7531 7 \u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u6bcf\u4e2a\u5b57\u8282\u56fa\u5b9a\u4e3a 10101010 \u3002\u4e4b\u540e\u7684 1 \u4e2a\u5b57\u8282\u79f0\u4e3a\u5e27\u8d77\u59cb\u5b9a\u754c\u7b26\uff0c\u8fd9\u4e2a\u5b57\u8282\u56fa\u5b9a\u4e3a 10101011 \u3002\u8fd9 8 \u4e2a\u5b57\u8282\u8868\u793a\u4ee5\u592a\u7f51\u5e27\u7684\u5f00\u59cb\uff0c\u4e5f\u662f\u5bf9\u7aef\u7f51\u5361\u80fd\u591f\u786e\u4fdd\u4e0e\u5176\u540c\u6b65\u7684\u6807\u5fd7\u3002\u987f\u8d77\u59cb\u5b9a\u754c\u7b26\u7684\u6700\u540e\u4e24\u4f4d\u6bd4\u7279\u88ab\u5b9a\u4e49\u4e3a 11 \uff0c\u4e4b\u540e\u5c31\u662f\u4ee5\u592a\u7f51\u6570\u636e\u5e27\u7684\u672c\u4f53\u3002<\/p>\n

    \"image-20230904154318172\"<\/div><\/p>\n
    \u76ee\u7684\u5730\u5740\uff08Destination Address\uff09<\/h5>\n

    \u76ee\u7684\u5730\u5740\u7531 6 \u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u7528\u6765\u6807\u8bc6\u6570\u636e\u987f\u7684\u76ee\u7684\u8bbe\u5907\uff0c\u7c7b\u4f3c\u4e8e\u5feb\u9012\u7684\u6536\u4ef6\u4eba\u5730\u5740\u3002<\/p>\n

    \u6e90\u5730\u5740\uff08Source Address\uff09<\/h5>\n

    \u6e90\u5730\u5740\u7531 6 \u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u7528\u6765\u6807\u8bc6\u6570\u636e\u987f\u7684\u59cb\u53d1\u8bbe\u5907\uff0c\u7c7b\u4f3c\u4e8e\u5feb\u9012\u7684\u53d1\u4ef6\u4eba\u5730\u5740\u3002<\/p>\n

    \u7c7b\u578b\uff08Type\uff09<\/h5>\n

    \u7c7b\u578b\u5b57\u6bb5\u7531 2 \u4e2a\u5b57\u8282\u7ec4\u6210\u3002\u7c7b\u578b\u5b57\u6bb5\u662f\u8868\u660e\u4e0a\u4e00\u5c42 (\u5373\u7f51\u7edc\u5c42) \u7684\u534f\u8bae\u7c7b\u578b\uff0c\u53ef\u4ee5\u8ba9\u63a5\u6536\u65b9\u4f7f\u7528\u76f8\u540c\u7684\u534f\u8bae\u8fdb\u884c\u6570\u636e\u5e27\u7684\u89e3\u5c01\u88c5\u3002<\/p>\n

    \u6570\u636e\uff08Data\uff09<\/h5>\n

    \u5e27\u5934\u540e\u5c31\u662f\u6570\u636e\u3002\u4e00\u4e2a\u6570\u636e\u6240\u80fd\u5bb9\u7eb3\u7684\u6700\u5927\u6570\u636e\u8303\u56f4\u662f 46 ~ 1500 \u4e2a\u5b57\u8282\u3002\u5982\u679c\u6570\u636e\u90e8\u5206\u4e0d\u8db3 46 \u4e2a\u5b57\u8282\uff0c\u5219\u586b\u5145\u8fd9\u4e2a\u6570\u636e\u5e27\uff0c\u8ba9\u5b83\u7684\u957f\u5ea6\u53ef\u4ee5\u6ee1\u8db3\u6700\u5c0f\u957f\u5ea6\u7684\u8981\u6c42\u3002<\/p>\n

    FCS\uff08Frame Check Sequence\uff09<\/h5>\n

    FCS \u7531 4 \u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u4f4d\u4e8e\u6570\u636e\u5e27\u7684\u5c3e\u90e8\uff0c\u7528\u6765\u68c0\u67e5\u5e27\u662f\u5426\u6709\u6240\u635f\u574f\u3002\u901a\u8fc7\u68c0\u67e5 FCS \u5b57\u6bb5\u7684\u503c\u5c06\u53d7\u5230\u566a\u58f0\u5e72\u6270\u7684\u9519\u8bef\u5e27\u4e22\u5f03\u3002<\/p>\n

    \u6700\u5c0f\u6570\u636e\u5e27<\/h5>\n

    \u6570\u636e\u5e27\u7684\u5404\u5b57\u6bb5\u52a0\u8d77\u6765\u4e00\u5171\u662f 64 \u5b57\u8282\uff0c\u5176\u4e2d\u6570\u636e\u662f 46 \u5b57\u8282\u3002\u518d\u52a0\u4e0a\u524d\u5bfc\u7801\u5c31\u662f 72 \u5b57\u8282\u3002\u56e0\u6b64\u6700\u5c0f\u7684\u6570\u636e\u5e27\u662f 72 \u5b57\u8282\u3002\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u6bcf\u4e2a\u6570\u636e\u5e27\u8fd8\u6709 12 \u5b57\u8282\u7684\u6570\u636e\u987f\u95f4\u9699\uff0c\u6240\u4ee5\u6700\u5c0f\u7684\u53ef\u4f20\u8f93\u6570\u636e\u5e27\u957f\u5ea6\u662f 84 \u5b57\u8282\uff0c672 \u6bd4\u7279<\/strong>\u3002<\/p>\n

    \u4ea4\u6362\u673a\u4e8c\u5c42\u8f6c\u53d1\u539f\u7406<\/h4>\n

    \u4ea4\u6362\u673a\u6709\u591a\u4e2a\u7f51\u7edc\u7aef\u53e3\uff0c\u5b83\u901a\u8fc7\u8bc6\u522b\u6570\u636e\u5e27\u7684\u76ee\u6807 MAC \u5730\u5740<\/strong>\uff0c\u6839\u636e MAC \u5730\u5740\u8868\u51b3\u5b9a\u4ece\u54ea\u4e2a\u7aef\u53e3\u53d1\u9001\u6570\u636e<\/strong>\u3002MAC \u5730\u5740\u8868\u4e0d\u9700\u8981\u5728\u4ea4\u6362\u673a\u4e0a\u624b\u5de5\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u81ea\u52a8\u751f\u6210\u3002<\/p>\n

    \"image-20230904161033099\"<\/div><\/p>\n
    \u4ea4\u6362\u673a\u5982\u4f55\u589e\u5220\u6539MAC\u5730\u5740\u8868<\/h5>\n

    \u5728\u521d\u59cb\u72b6\u6001\u4e0b\uff0c\u4ea4\u6362\u673a\u7684 MAC \u5730\u5740\u8868\u662f\u7a7a\u7684\uff0c\u4e0d\u5305\u542b\u4efb\u4f55\u6761\u76ee\u3002\u5f53\u4ea4\u6362\u673a\u7684\u67d0\u4e2a\u7aef\u53e3\u63a5\u6536\u5230\u4e00\u4e2a\u6570\u636e\u65f6\uff0c\u5b83\u5c31\u4f1a\u5c06\u8fd9\u4e2a\u6570\u636e\u7684\u6e90 MAC \u5730\u5740\u3001\u63a5\u6536\u6570\u636e\u5e27\u7684\u7aef\u53e3\u53f7\u4f5c\u4e3a\u4e00\u4e2a\u6761\u76ee\u4fdd\u5b58\u5728\u81ea\u5df1\u7684 MAC \u5730\u5740\u8868\u4e2d<\/strong>\uff0c\u540c\u65f6\u5728\u63a5\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u65f6\u91cd\u7f6e\u8fd9\u4e2a\u6761\u76ee\u7684\u8001\u5316\u8ba1\u65f6\u5668\u65f6\u95f4\u3002\u8fd9\u5c31\u662f\u4ea4\u6362\u673a\u81ea\u52a8\u6dfb\u52a0 MAC \u5730\u5740\u8868\u6761\u76ee<\/strong>\u7684\u65b9\u5f0f\u3002<\/p>\n

    \"image-20230904162034983\"<\/div><\/p>\n

    \u5728\u65b0\u589e\u8fd9\u4e00\u6761 MAC \u5730\u5740\u6761\u76ee\u540e\uff0c\u5982\u679c\u4ea4\u6362\u673a\u518d\u6b21\u4ece\u540c\u4e00\u4e2a\u7aef\u53e3\u6536\u5230\u76f8\u540c MAC\u5730\u5740\u4e3a\u6e90 MAC \u5730\u5740\u7684\u6570\u636e\u65f6\uff0c\u4ea4\u6362\u673a\u5c31\u4f1a\u66f4\u65b0\u8fd9\u4e2a\u6761\u76ee\u7684\u8001\u5316\u8ba1\u65f6\u5668\uff0c\u786e\u4fdd\u6d3b\u8dc3\u7684\u7684\u6761\u76ee\u4e0d\u4f1a\u8001\u5316\u3002\u4f46\u662f\u5982\u679c\u5728\u8001\u5316\u65f6\u95f4\u5185\u90fd\u6ca1\u6536\u5230\u5339\u914d\u8fd9\u4e2a\u6761\u76ee\u7684\u6570\u636e\u5e27\uff0c\u4ea4\u6362\u673a\u5c31\u4f1a\u5c06\u8fd9\u4e2a\u8001\u5316\u7684\u6761\u76ee\u4ece\u81ea\u5df1\u7684 MAC \u5730\u5740\u8868\u4e2d\u5220\u9664\u3002<\/p>\n

    \"image-20230904162501859\"<\/div><\/p>\n

    \u8fd8\u53ef\u4ee5\u624b\u52a8\u5728\u4ea4\u6362\u673a\u7684 MAC \u5730\u5740\u8868\u4e2d\u6dfb\u52a0\u9759\u6001\u6761\u76ee\u3002\u9759\u6001\u6dfb\u52a0\u7684 MAC \u5730\u5740\u6761\u76ee\u4f18\u5148\u52a8\u6001\u5b66\u4e60\u7684\u6761\u76ee\u8fdb\u884c\u8f6c\u53d1\uff0c\u800c\u4e14\u9759\u6001\u6761\u76ee\u6ca1\u6709\u8001\u5316\u65f6\u95f4\uff0c\u4f1a\u4e00\u76f4\u4fdd\u5b58\u5728\u4ea4\u6362\u673a\u7684 MAC \u5730\u5740\u8868\u4e2d\u3002<\/p>\n

    \u4f7f\u7528MAC\u5730\u5740\u8868\u8fdb\u884c\u8f6c\u53d1<\/h5>\n

    \u5f53\u4ea4\u6362\u673a\u7684\u67d0\u4e2a\u7aef\u53e3\u6536\u5230\u4e00\u4e2a\u5355\u64ad\u6570\u636e\u5e27\u65f6\uff0c\u5b83\u4f1a\u67e5\u770b\u8fd9\u4e2a\u6570\u636e\u5e27\u7684\u4e8c\u5c42\u5934\u90e8\u4fe1\u606f\uff0c\u5e76\u8fdb\u884c\u4e24\u4e2a\u64cd\u4f5c\u3002<\/p>\n

    \u4e00\u4e2a\u64cd\u4f5c\u662f\u6839\u636e\u6e90 MAC \u5730\u5740\u548c\u7aef\u53e3\u4fe1\u606f\u6dfb\u52a0\u6216\u66f4\u65b0MAC \u5730\u5740\u8868\u3002<\/p>\n

    \u53e6\u4e00\u4e2a\u64cd\u4f5c\u662f\u67e5\u770b\u6570\u636e\u987f\u7684\u76ee\u7684 MAC \u5730\u5740\uff0c\u5e76\u6839\u636e\u6570\u636e\u7684\u76ee\u7684 MAC \u5730\u5740\u67e5\u627e\u81ea\u5df1\u7684 MAC \u5730\u5740\u8868\u3002<\/p>\n

    \u5728\u67e5\u627e MAC \u5730\u5740\u8868\u540e\uff0c\u4ea4\u6362\u673a\u4f1a\u6839\u636e\u67e5\u627e\u7ed3\u679c\u5bf9\u6570\u636e\u5e27\u8fdb\u884c\u5904\u7406\uff0c\u8fd9\u91cc\u6709 3\u79cd\u60c5\u51b5\uff1a<\/p>\n

    \u60c5\u51b51<\/h6>\n

    \u4ea4\u6362\u673a\u6ca1\u6709\u5728 MAC \u5730\u5740\u8868\u4e2d\u627e\u5230\u8fd9\u4e2a\u6570\u636e\u7684\u76ee\u7684 MAC \u5730\u5740\uff0c\u56e0\u6b64\u4ea4\u6362\u673a\u4e0d\u77e5\u9053\u81ea\u5df1\u7684\u7aef\u53e3\u662f\u5426\u6709\u8fde\u63a5\u8fd9\u4e2a MAC \u5730\u5740\u7684\u8bbe\u5907\u3002\u4e8e\u662f\uff0c\u4ea4\u6362\u673a\u5c06\u8fd9\u4e2a\u6570\u636e\u5e27\u4ece\u9664\u4e86\u63a5\u6536\u7aef\u53e3\u4e4b\u5916\u7684\u6240\u6709\u7aef\u53e3\u6cdb\u6d2a<\/strong>\u51fa\u53bb\u3002<\/p>\n

    \"image-20230904162712314\"<\/div><\/p>\n
    \u60c5\u51b52<\/h6>\n

    \u4ea4\u6362\u673a\u7684 MAC \u5730\u5740\u8868\u4e2d\u6709\u8fd9\u4e2a\u6570\u636e\u7684\u76ee\u7684 MAC \u5730\u5740\uff0c\u4e14\u5bf9\u5e94\u7aef\u53e3\u4e0d\u662f\u63a5\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u7684\u7aef\u53e3\uff0c\u4ea4\u6362\u673a\u77e5\u9053\u76ee\u7684\u8bbe\u5907\u8fde\u63a5\u5728\u54ea\u4e2a\u7aef\u53e3\u4e0a\uff0c\u56e0\u6b64\u4ea4\u6362\u673a\u4f1a\u6839\u636e MAC \u5730\u5740\u8868\u4e2d\u7684\u6761\u76ee\u5c06\u6570\u636e\u5e27\u4ece\u5bf9\u5e94\u7aef\u53e3\u5355\u64ad\u8f6c\u53d1<\/strong>\u51fa\u53bb\uff0c\u800c\u5176\u5b83\u4e0e\u4ea4\u6362\u673a\u76f8\u8fde\u7684\u8bbe\u5907\u5219\u4e0d\u4f1a\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u3002<\/p>\n

    \"image-20230904163158205\"<\/div><\/p>\n
    \u60c5\u51b53<\/h6>\n

    \u4ea4\u6362\u673a\u7684 MAC \u5730\u5740\u8868\u4e2d\u6709\u8fd9\u4e2a\u6570\u636e\u7684\u76ee\u7684 MAC \u5730\u5740\uff0c\u4e14\u5bf9\u5e94\u7aef\u53e3\u5c31\u662f\u63a5\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u7684\u7aef\u53e3\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4ea4\u6362\u673a\u4f1a\u8ba4\u4e3a\u6570\u636e\u5e27\u7684\u76ee\u7684\u5730\u5740\u5c31\u5728\u8fd9\u4e2a\u7aef\u53e3\u6240\u8fde\u63a5\u7684\u8303\u56f4\u5185\uff0c\u56e0\u6b64\u76ee\u7684\u8bbe\u5907\u5e94\u8be5\u5df2\u7ecf\u6536\u5230\u6570\u636e\u5e27\u3002\u8fd9\u4e2a\u6570\u636e\u5e27\u4e0e\u5176\u5b83\u7aef\u53e3\u7684\u8bbe\u5907\u65e0\u5173\uff0c\u4e0d\u4f1a\u5c06\u6570\u636e\u5e27\u4ece\u5176\u5b83\u7aef\u53e3\u8f6c\u53d1\u51fa\u53bb\u3002\u4e8e\u662f\uff0c\u4ea4\u6362\u673a\u4f1a\u4e22\u5f03<\/strong>\u6570\u636e\u5e27\u3002<\/p>\n

    \"image-20230904163235824\"<\/div><\/p>\n
    \u5355\u64ad<\/strong><\/h6>\n

    \u4e3b\u673a\u4e00\u5bf9\u4e00\u7684\u53d1\u9001\u6570\u636e\u3002\u5355\u64ad\u5730\u5740\u662f\u4e3b\u673a\u7684 MAC \u5730\u5740\u3002<\/p>\n

    \u5e7f\u64ad<\/strong><\/h6>\n

    \u5411\u5c40\u57df\u7f51\u5185\u6240\u6709\u8bbe\u5907\u53d1\u9001\u6570\u636e\u3002\u53ea\u6709\u5168 1 \u7684 MAC \u5730\u5740\u4e3a\u5e7f\u64ad MAC \u5730\u5740\uff0c\u5373 FF-FF- FF-FF-FF- FF\u3002<\/p>\n

    \u6cdb\u6d2a<\/strong><\/h6>\n

    \u5c06\u67d0\u4e2a\u7aef\u53e3\u6536\u5230\u7684\u6570\u636e\u4ece\u9664\u8be5\u7aef\u53e3\u4e4b\u5916\u7684\u6240\u6709\u7aef\u53e3\u53d1\u9001\u51fa\u53bb\u3002\u6cdb\u6d2a\u64cd\u4f5c\u5e7f\u64ad\u7684\u662f\u666e\u901a\u6570\u636e\u5e27\u800c\u4e0d\u662f\u5e7f\u64ad\u5e27\u3002<\/p>\n

    VLAN<\/h3>\n

    \u5e7f\u64ad\u57df\u662f\u5e7f\u64ad\u5e27\u53ef\u4ee5\u5230\u8fbe\u7684\u533a\u57df\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u7531\u591a\u4e2a\u4ea4\u6362\u673a\u548c\u4e3b\u673a\u7ec4\u6210\u7684\u7f51\u7edc\u5c31\u662f\u4e00\u4e2a\u5e7f\u64ad\u57df\u3002\u7f51\u7edc\u89c4\u6a21\u8d8a\u5927\uff0c\u5e7f\u64ad\u57df\u5c31\u8d8a\u5927\uff0c\u6cdb\u6d2a\u6d41\u91cf\u4e5f\u8d8a\u6765\u8d8a\u5927\uff0c\u964d\u4f4e\u901a\u4fe1\u6548\u7387\u3002\u5728\u4e00\u4e2a\u5e7f\u64ad\u57df\u5185\u7684\u4efb\u610f\u4e24\u53f0\u4e3b\u673a\u4e4b\u95f4\u53ef\u4ee5\u4efb\u610f\u901a\u4fe1\uff0c\u901a\u4fe1\u6570\u636e\u6709\u88ab\u7a83\u53d6\u7684\u98ce\u9669\u3002<\/p>\n

    \"image-20230904165056720\"<\/div><\/p>\n

    \u4e3a\u4e86\u89e3\u51b3\u5e7f\u64ad\u57df\u6269\u5927\u5e26\u6765\u7684\u6027\u80fd\u95ee\u9898\u548c\u5b89\u5168\u6027\u964d\u4f4e\u95ee\u9898\uff0c VLAN \u6280\u672f\u5e94\u8fd0\u800c\u751f\u3002 VLAN \u6280\u672f\u80fd\u591f\u5728\u903b\u8f91\u4e0a\u628a\u4e00\u4e2a\u7269\u7406\u5c40\u57df\u7f51\u5206\u9694\u4e3a\u591a\u4e2a\u5e7f\u64ad\u57df\uff0c\u6bcf\u4e2a\u5e7f\u64ad\u57df\u79f0\u4e3a\u4e00\u4e2a\u865a\u62df\u5c40\u57df\u7f51 (\u5373 VLAN ) \u3002\u6bcf\u53f0\u4e3b\u673a\u53ea\u80fd\u5c5e\u4e8e\u4e00\u4e2a VLAN\uff0c\u540c\u5c5e\u4e2a VLAN \u7684\u4e3b\u673a\u901a\u8fc7\u4e8c\u5c42\u76f4\u63a5\u901a\u4fe1\uff0c\u5c5e\u4e8e\u4e0d\u540c VLAN \u7684\u4e3b\u673a\u53ea\u80fd\u901a\u8fc7 IP\u8def\u7531\u529f\u80fd\u624d\u80fd\u5b9e\u73b0\u901a\u4fe1\u3002\u901a\u8fc7\u5212\u5206\u591a\u4e2a VLAN \uff0c\u4ece\u800c\u51cf\u5c0f\u5e7f\u64ad\u57df\u4f20\u64ad\u7684\u8303\u56f4\u8fc7\u6ee4\u591a\u4f59\u7684\u5305\uff0c\u63d0\u9ad8\u7f51\u7edc\u7684\u4f20\u8f93\u6548\u7387\uff0c\u540c\u65f6\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u5b89\u5168\u6027\u3002<\/p>\n

    VLAN\u539f\u7406<\/h4>\n

    VLAN \u6280\u672f\u901a\u8fc7\u7ed9\u6570\u636e\u63d2\u5165 VLAN \u6807\u7b7e (\u53c8\u53eb VLAN TAG ) \u7684\u65b9\u5f0f\uff0c\u8ba9\u4ea4\u6362\u673a\u80fd\u591f\u5206\u8fa8\u51fa\u5404\u4e2a\u6570\u636e\u5e27\u6240\u5c5e\u7684 VLAN\u3002
    \nVLAN \u6807\u7b7e\u662f\u7528\u6765\u533a\u5206\u6570\u636e\u987f\u6240\u5c5e VLAN \u7684\uff0c\u662f 4 \u4e2a\u5b57\u8282\u957f\u5ea6\u7684\u5b57\u6bb5\uff0c\u63d2\u5165\u5230\u4ee5\u592a\u7f51\u5e27\u5934\u90e8\u4e0a\u3002 VLAN \u6807\u7b7e\u4f1a\u63d2\u5165\u5230\u6e90 MAC \u5730\u5740\u540e\u9762\uff0c IEEE 802.1Q\u6807\u51c6\u6709\u8fd9\u4e2a\u683c\u5f0f\u5b9a\u4e49\u548c\u5b57\u6bb5\u6784\u6210\u8bf4\u660e\u3002 <\/p>\n

    \"image-20230905090537291\"<\/div><\/p>\n
    TPID(\u6807\u7b7e\u534f\u8bae\u6807\u8bc6\u7b26)<\/h5>\n

    \u957f\u5ea6 2 \u4e2a\u5b57\u8282\uff0c\u503c\u4e3a 0x8100 \uff0c\u7528\u6765\u8868\u793a\u8fd9\u4e2a\u6570\u636e\u5e27\u643a\u5e26\u4e86 802.1Q \u6807\u7b7e\u3002\u4e0d\u652f\u6301 802.1Q \u6807\u51c6\u7684\u8bbe\u5907\u6536\u5230\u8fd9\u7c7b\u6570\u636e\u5e27\uff0c\u4f1a\u628a\u5b83\u4e22\u5f03\u3002<\/p>\n

    TCI (\u6807\u7b7e\u63a7\u5236\u4fe1\u606f) :<\/h5>\n

    \u957f\u5ea6 2 \u4e2a\u5b57\u8282\uff0c\u53c8\u5206\u4e3a\u4e09\u4e2a\u5b50\u5b57\u6bb5\uff0c\u7528\u6765\u8868\u793a\u6570\u636e\u5e27\u7684\u63a7\u5236\u4fe1\u606f\uff1a<\/p>\n

    \u4f18\u5148\u7ea7 ( Priority ) :<\/h6>\n

    \u957f\u5ea6\u4e3a 3 \u6bd4\u7279\uff0c\u53d6\u503c\u8303\u56f4 0 ~ 7\u7528\u6765\u8868\u793a\u6570\u636e\u5e27\u7684\u4f18\u5148\u7ea7\u3002\u53d6\u503c\u8d8a\u5927\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002\u5f53\u4ea4\u6362\u673a\u53d1\u9001\u62e5\u585e\u662f\uff0c\u4f18\u5148\u8f6c\u53d1\u4f18\u5148\u7ea7\u9ad8\u7684\u6570\u636e\u5e27\u3002<\/p>\n

    CFI (\u89c4\u8303\u683c\u5f0f\u6307\u793a\u5668) :<\/h6>\n

    \u957f\u5ea6\u4e3a 1 \u6bd4\u7279\uff0c\u53d6\u503c\u975e 0 \u5373 1VLAN ID ( VLAN \u6807\u8bc6\u7b26) : \u957f\u5ea6\u4e3a 12 \u6bd4\u7279\uff0c\u7528\u6765\u8868\u793a VLAN \u6807\u7b7e\u7684\u6570\u503c\u3002\u53d6\u503c\u8303\u56f4\u662f 1~ 4094\u3002<\/p>\n

    \u5212\u5206VLAN\u540e\uff0c\u4ea4\u6362\u673a\u5982\u4f55\u5904\u7406\u62a5\u6587\uff1f<\/h5>\n

    \u4ea4\u6362\u673a\u4e0a\u5212\u5206\u4e86\u591a\u4e2a VLAN \u65f6\uff0c\u5728\u4ea4\u6362\u673a\u63a5\u6536\u5230\u5e7f\u64ad\u6570\u636e\u5e27\u65f6\uff0c\u53ea\u4f1a\u5c06\u8fd9\u4e2a\u6570\u636e\u987f\u5728\u76f8\u540c VLAN \u7684\u7aef\u53e3\u8fdb\u884c\u5e7f\u64ad\u3002<\/p>\n

    \"image-20230905090836382\"<\/div><\/p>\n
    \u5212\u5206 VLAN \u540e\uff0c\u4ea4\u6362\u673a\u5982\u4f55\u5904\u7406\u76ee\u7684 MAC \u5730\u5740\u4e0d\u5728 MAC \u5730\u5740\u8868\u4e2d\u7684\u5355\u64ad\u6570\u636e\u5e27?<\/h5>\n

    \"image-20230905091140895\"<\/div><\/p>\n
    \u5212\u5206VLAN\u540e\uff0c\u4e0d\u540cVLAN\u7684\u4e3b\u673a\u80fd\u5426\u901a\u4fe1\uff1f<\/h5>\n

    \u5212\u5206\u591a VLAN \u7684\u73af\u5883\u4e2d\uff0c\u5373\u4f7f\u4ea4\u6362\u673a MAC \u5730\u5740\u8868\u91cc\u4fdd\u5b58\u4e86\u67d0\u4e2a\u6570\u636e\u7684\u76ee\u7684MAC \u5730\u5740\u6761\u76ee\uff0c\u82e5\u8fd9\u4e2a\u76ee\u7684 MAC \u5730\u5740\u6240\u5bf9\u5e94\u7684\u7aef\u53e3\u4e0e\u6570\u636e\u7684\u5165\u7aef\u53e3\u5728\u4e0d\u540c\u7684 VLAN \u4e2d\uff0c\u4ea4\u6362\u673a\u4e5f\u4e0d\u4f1a\u901a\u8fc7 MAC \u5730\u5740\u8868\u4e2d\u7684\u7aef\u53e3\u53d1\u9001\u6570\u636e\u5e27\u3002<\/p>\n

    \"image-20230905091247751\"<\/div><\/p>\n

    \u5c0f\u7ed3: \u5728\u4e0d\u4f7f\u7528\u8def\u7531\u8f6c\u53d1\u7684\u524d\u63d0\u4e0b\uff0c\u4ea4\u6362\u673a\u4e0d\u4f1a\u4ece\u4e00\u4e2a VLAN \u7684\u7aef\u53e3\u4e2d\u63a5\u6536\u5230\u7684\u6570\u636e\u5e27\uff0c\u8f6c\u53d1\u7ed9\u5176\u5b83 VLAN \u7684\u7aef\u53e3\u3002<\/strong><\/p>\n

    \u600e\u6837\u533a\u5206\u4e0d\u540c\u7684VLAN\uff1f<\/h5>\n

    \u901a\u8fc7 VLAN ID \u8fdb\u884c\u533a\u5206\uff0c\u4f8b\u5982 VLAN 10 \u548c VLAN 20 \u5c31\u662f\u4e0d\u540c\u7684 VLAN\u3002<\/p>\n

    VLAN\u6280\u672f\u7684\u597d\u5904\uff1f<\/h5>\n

    \u589e\u52a0\u4e86\u5e7f\u64ad\u57df\u7684\u6570\u91cf\uff0c\u51cf\u5c0f\u4e86\u6bcf\u4e2a\u5e7f\u64ad\u57df\u7684\u89c4\u6a21\uff0c\u4e5f\u51cf\u5c11\u4e86\u6bcf\u4e2a\u5e7f\u64ad\u57df\u4e2d\u7ec8\u7aef\u8bbe\u5907\u7684\u6570\u91cf\uff1b
    \n\u589e\u5f3a\u4e86\u7f51\u7edc\u5b89\u5168\u6027\uff0c\u4fdd\u969c\u7f51\u7edc\u5b89\u5168\u7684\u65b9\u6cd5\u589e\u52a0\u4e86 \uff1b<\/p>\n

    \u63d0\u9ad8\u4e86\u7f51\u7edc\u8bbe\u8ba1\u7684\u903b\u8f91\u6027\uff0c\u53ef\u4ee5\u89c4\u907f\u5730\u7406\u3001\u7269\u7406\u7b49\u56e0\u7d20\u5bf9\u4e8e\u7f51\u7edc\u8bbe\u8ba1\u7684\u9650\u5236\u3002<\/p>\n

    \u5212\u5206VLAN<\/h4>\n

    \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\uff0c\u628a\u4ea4\u6362\u673a\u4e0a\u7684\u6bcf\u4e2a\u7aef\u53e3\u5212\u5206\u5230\u67d0\u4e2a VLAN \u4e2d\uff0c\u4ee5\u6b64\u5728\u903b\u8f91\u4e0a\u5206\u9694\u5e7f\u64ad\u57df\u3002
    \n\u4ea4\u6362\u673a\u901a\u5e38\u4f1a\u4f7f\u7528\u57fa\u4e8e\u7aef\u53e3\u5212\u5206 VLAN \u7684\u65b9\u6cd5\u3002\u5728\u4ea4\u6362\u673a\u4e0a\u624b\u52a8\u914d\u7f6e\uff0c\u7ed1\u5b9a\u4ea4\u6362\u673a\u7aef\u53e3\u548c VLAN ID \u7684\u5173\u7cfb\u3002
    \n\u4f18\u70b9:<\/strong> \u914d\u7f6e\u7b80\u5355\u3002\u60f3\u8981\u628a\u67d0\u4e2a\u7aef\u53e3\u5212\u5206\u5230\u67d0\u4e2a VLAN \u4e2d\uff0c\u53ea\u9700\u8981\u628a\u7aef\u53e3\u7684PVID (\u7aef\u53e3 VLAN ID ) \u914d\u7f6e\u5230\u76f8\u5e94\u7684 VLAN ID \u5373\u53ef\u3002
    \n\u7f3a\u70b9:<\/strong>\u5f53\u7ec8\u7aef\u8bbe\u5907\u79fb\u52a8\u4f4d\u7f6e\u662f\uff0c\u53ef\u80fd\u9700\u8981\u4e3a\u7ec8\u7aef\u8bbe\u5907\u8fde\u63a5\u7684\u65b0\u7aef\u53e3\u91cd\u65b0\u5212\u5206VLAN\u3002
    \n\u9664\u4e86\u8fd9\u79cd\u65b9\u6cd5\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u57fa\u4e8e MAC \u5730\u5740\u5212\u5206 VLAN \u3001\u57fa\u4e8e IP \u5730\u5740\u5212\u5206VLAN \u3001\u57fa\u4e8e\u534f\u8bae\u5212\u5206 VLAN \u3001\u57fa\u4e8e\u7b56\u7565\u5212\u5206 VLAN \u7b49\u65b9\u6cd5\u6765\u5212\u5206VLAN\u3002
    \nPVID :<\/strong>\u63a5\u53e3\u9ed8\u8ba4 VLAN ID \uff0c\u662f\u4ea4\u6362\u673a\u7aef\u53e3\u914d\u7f6e\u7684\u53c2\u6570\uff0c\u9ed8\u8ba4\u503c\u662f 1\u3002<\/p>\n

    \u8de8\u4ea4\u6362\u673aVLAN\u539f\u7406<\/h4>\n

    \u7ec8\u7aef\u8bbe\u5907\u4e0d\u4f1a\u751f\u6210\u5e26 VLAN \u6807\u7b7e\u7684\u6570\u636e\u5e27\uff0c\u5b83\u4eec\u53d1\u51fa\u7684\u6570\u636e\u53eb\u505a\u65e0\u6807\u8bb0\u5e27\uff08Untagged )<\/strong>\u3002\u5b83\u4eec\u8fde\u63a5\u7684\u4ea4\u6362\u673a\u4f1a\u7ed9\u65e0\u6807\u8bb0\u5e27\u6253\u4e0a VLAN \u6807\u7b7e\u3002\u4ea4\u6362\u673a\u901a\u8fc7\u6bcf\u4e2a\u7aef\u53e3\u7684 PVID \uff0c\u5224\u65ad\u4ece\u8fd9\u4e2a\u63a5\u53e3\u6536\u5230\u7684\u65e0\u6807\u8bb0\u5e27\u5c5e\u4e8e\u54ea\u4e2a VLAN \uff0c\u5e76\u5728\u8f6c\u53d1\u65f6\uff0c\u63d2\u5165\u76f8\u5e94\u7684 VLAN \u6807\u7b7e\uff0c\u4ece\u800c\u5c06\u65e0\u6807\u8bb0\u5e27\u53d8\u4e3a\u6807\u8bb0\u5e27 ( Tagged )<\/strong>\u3002<\/p>\n

    \"image-20230906173328030\"<\/div><\/p>\n

    \u5982\u679c\u4ea4\u6362\u673a\u63a5\u53e3\u6536\u5230\u65e0\u6807\u8bb0\u987f\uff0c\u7531\u4ea4\u6362\u673a\u6839\u636e\u8fd9\u4e2a\u63a5\u53e3\u6240\u5728 VLAN \u4e3a\u6570\u636e\u987f\u6253\u4e0a VLAN \u6807\u7b7e;\u540c\u65f6\u63a5\u53e3\u53d1\u9001\u6570\u636e\u987f\u65f6\uff0c\u4e5f\u4e0d\u643a\u5e26 VLAN \u6807\u7b7e\u3002\u5e94\u8be5\u628a\u8fd9\u7c7b\u63a5\u53e3\u914d\u7f6e\u4e3a Access (\u63a5\u5165) \u63a5\u53e3\uff0c Access \u63a5\u53e3\u8fde\u63a5\u7684\u94fe\u8def\u79f0\u4e3aAccess \u94fe\u8def\u3002<\/p>\n

    \u5982\u679c\u4ea4\u6362\u673a\u63a5\u53e3\u6536\u5230\u591a\u4e2a VLAN \u7684\u6d41\u91cf\uff0c\u4e5f\u5c31\u662f\u6536\u5230\u4e86\u6807\u8bb0\u987f;\u540c\u65f6\u4e3a\u4e86\u8ba9\u5bf9\u7aef\u8bbe\u5907\u80fd\u591f\u533a\u5206\u4e0d\u540c VLAN \u7684\u6d41\u91cf\uff0c\u901a\u8fc7\u63a5\u53e3\u53d1\u51fa\u7684\u6d41\u91cf\u4f1a\u6253\u4e0a VLAN \u6807\u7b7e\u3002\u5e94\u8be5\u628a\u8fd9\u7c7b\u63a5\u53e3\u914d\u7f6e\u4e3a Trunk (\u5e72\u9053) \u63a5\u53e3\uff0c\u76f8\u5e94\u7684\u94fe\u8def\u79f0\u4e3a Trunk\u94fe\u8def\u3002<\/p>\n

    \"image-20230907100049220\"<\/div><\/p>\n

    \u4e3b\u673a A \u4ee5\u4e3b\u673a F \u7684 MAC \u5730\u5740\u4f5c\u4e3a\u76ee\u7684 MAC \u5730\u5740\u5c01\u88c5\u4e86\u4e00\u4e2a\u6570\u636e\uff0c\u4ece\u7f51\u5361\u53d1\u9001\u51fa\u53bb\u3002
    \n\u4ea4\u6362\u673a A \u5728 Access \u63a5\u53e3\u6536\u5230\u6570\u636e\u3002\u67e5\u8be2 MAC \u5730\u5740\u8868\uff0c\u53d1\u73b0\u6570\u636e\u7684\u76ee\u7684\u5730\u5740\u662f\u4e0e\u4ea4\u6362\u673a B \u76f8\u8fde\u7684 Trunk \u63a5\u53e3\u3002\u4e8e\u662f\u4ea4\u6362\u673a\u7ed9\u6570\u636e\u5e27\u6253\u4e0a Access\u63a5\u53e3\u7684 PVID \u914d\u7f6e\uff0c\u5373\u7ed9\u6570\u636e\u6253\u4e0a VLAN 10 \u7684\u6807\u7b7e\uff0c\u5e76\u4ece Trunk \u63a5\u53e3\u8f6c\u53d1\u7ed9\u4ea4\u6362\u673a B \u3002
    \n\u4ea4\u6362\u673a B \u5728 trunk \u63a5\u53e3\u6536\u5230\u6570\u636e\u3002\u67e5\u770b MAC \u5730\u5740\u8868\uff0c\u53d1\u73b0\u662f VLAN 10\u7684\u6570\u636e\uff0c\u76ee\u7684\u5730\u5740\u8bbe\u5907\u662f\u8fde\u63a5\u5728 VLAN 10 \u7684\u4e00\u4e2a Access \u63a5\u53e3\u4e0a\u3002\u4e8e\u662f\u53bb\u6389\u6570\u636e\u5e27\u7684 VLAN \u6807\u7b7e\uff0c\u5e76\u4ece\u8fd9\u4e2a Access \u63a5\u53e3\u8f6c\u53d1\u7ed9\u4e3b\u673a F\u3002<\/p>\n

    Hybrid\u63a5\u53e3\u914d\u7f6e<\/strong><\/h5>\n
    Access \u63a5\u53e3:<\/h6>\n

    \u8fd9\u79cd\u63a5\u53e3\u53ea\u80fd\u5c5e\u4e8e\u4e00\u4e2a VLAN\uff0c\u53ea\u80fd\u63a5\u6536\u548c\u53d1\u9001\u4e00\u4e2a VLAN\u7684\u6570\u636e\u3002\u901a\u5e38\u7528\u4e8e\u8fde\u63a5\u7ec8\u7aef\u8bbe\u5907\uff0c\u6bd4\u5982\u4e3b\u673a\u6216\u670d\u52a1\u5668\u7b49\u3002<\/p>\n

    Trunk \u63a5\u53e3:<\/h6>\n

    \u8fd9\u79cd\u63a5\u53e3\u80fd\u591f\u63a5\u6536\u548c\u53d1\u9001\u591a\u4e2a VLAN \u7684\u6570\u636e\uff0c\u901a\u5e38\u7528\u4e8e\u8fde\u63a5\u4ea4\u6362\u673a\u3002<\/p>\n

    Hybrid \u63a5\u53e3:<\/h6>\n

    \u8fd9\u79cd\u63a5\u53e3\u80fd\u591f\u63a5\u6536\u548c\u53d1\u9001\u591a\u4e2a VLAN \u7684\u6570\u636e\uff0c\u53ef\u7528\u4e8e\u4ea4\u6362\u673a\u7684\u94fe\u8def\uff0c\u4e5f\u53ef\u7528\u4e8e\u7ec8\u7aef\u8bbe\u5907\u3002<\/p>\n

    \u4e0e Trunk \u63a5\u53e3\u7684\u533a\u522b\u662f\uff0c\u53d1\u9001\u6570\u636e\u65f6 Trunk \u63a5\u53e3\u53ea\u4f1a\u6458\u6389 PVID \u6807\u7b7e\uff0c\u800c Hybrid \u63a5\u53e3\u80fd\u591f\u4e0d\u643a\u5e26 VLAN \u6807\u7b7e\u53d1\u9001\u591a\u4e2aVLAN \u6570\u636e\u3002<\/p>\n

    \u603b\u7ed3<\/h5>\n
    Access\u63a5\u53e3\u63a5\u6536\u6570\u636e\u5e27\u5904\u7406\u8fc7\u7a0b<\/h6>\n

    \"image-20230907101313806\"<\/div><\/p>\n
    Access\u63a5\u53e3\u53d1\u9001\u6570\u636e\u5e27\u5904\u7406\u8fc7\u7a0b<\/h6>\n

    \"image-20230907101643065\"<\/div><\/p>\n
    Truck\u63a5\u53e3\u63a5\u6536\u6570\u636e\u5e27\u5904\u7406\u8fc7\u7a0b<\/h6>\n

    \"image-20230907101938437\"<\/div><\/p>\n
    Truck\u53d1\u9001\u6570\u636e\u5e27\u5904\u7406\u8fc7\u7a0b<\/h6>\n

    \"image-20230907102005919\"<\/div><\/p>\n

    \u4e09\u3001\u7f51\u7edc\u5c42<\/h2>\n

    \"image-20230907103103427\"<\/div><\/p>\n

    \u524d\u8a00<\/h3>\n

    IP \u534f\u8bae\u662f\u57fa\u4e8e IP \u5730\u5740\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9\u76ee\u7684\u4e3b\u673a\uff0c\u80fd\u591f\u8ba9\u4e92\u8054\u7f51\u4e0a\u4efb\u4f55\u4e24\u53f0\u4e3b\u673a\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

    \"image-20230907103727152\"<\/div><\/p>\n

    \u7f51\u7edc\u5c42\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u5b9e\u73b0\u7ec8\u7aef\u8282\u70b9\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u8fd9\u79cd\u7ec8\u7aef\u8282\u70b9\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u4e5f\u53eb\u70b9\u5bf9\u70b9\u901a\u4fe1\u3002<\/p>\n

    \"image-20230907103832782\"<\/div><\/p>\n

    \u4e3b\u673a:<\/h4>\n

    \u914d\u7f6e\u6709 IP \u5730\u5740\uff0c\u4e0d\u8fdb\u884c\u8def\u7531\u63a7\u5236\u7684\u8bbe\u5907\u3002<\/p>\n

    \u8def\u7531\u5668:<\/h4>\n

    \u65e2\u6709 IP \u5730\u5740\u53c8\u5177\u6709\u8def\u7531\u63a7\u5236\u529f\u80fd\u7684\u8bbe\u5907\u3002<\/p>\n

    \u8282\u70b9:<\/h4>\n

    \u4e3b\u673a\u548c\u8def\u7531\u5668\u7684\u7edf\u79f0\u3002<\/p>\n

    \u6570\u636e\u5982\u4f55\u4f20\u8f93\u5230\u76ee\u7684\u5730\uff1f<\/h4>\n

    \"image-20230907104024143\"<\/div><\/p>\n

    IP\u5730\u5740\u7684\u57fa\u7840\u77e5\u8bc6<\/h3>\n

    \u5728 TCP\/IP \u901a\u4fe1\u4e2d\u4f7f\u7528 IP \u5730\u5740\u8bc6\u522b\u4e3b\u673a\u548c\u8def\u7531\u5668\u3002 IP \u5730\u5740\u662f\u903b\u8f91\u5730\u5740\uff0c\u9700\u8981\u624b\u5de5\u914d\u7f6e\u6216\u81ea\u52a8\u83b7\u53d6\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6b63\u5e38\u901a\u4fe1\uff0c\u6bcf\u4e2a\u8bbe\u5907\u5fc5\u987b\u914d\u7f6e IP \u5730\u5740\u3002<\/p>\n

    \"image-20230907104240211\"<\/div><\/p>\n

    IP\u5730\u5740\u7684\u5b9a\u4e49<\/h3>\n

    IP \u5730\u5740\u7531 32 \u4f4d\u4e8c\u8fdb\u5236\u6570\u7ec4\u6210\u3002\u4e3a\u4e86\u65b9\u4fbf\u8bb0\u5f55\uff0c\u5c06 32 \u4f4d\u7684 IP \u5730\u5740\u5206\u4e3a 4\u7ec4\uff0c\u6bcf 8 \u4f4d\u4e3a\u4e00\u7ec4\uff0c\u6bcf\u7ec4\u4ee5\u201c.\u201d\u9694\u5f00\uff0c\u518d\u5c06\u6bcf\u7ec4\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\u3002<\/p>\n

    \"image-20230907104418084\"<\/div><\/p>\n

    \u5b9e\u9645\u4e0a\uff0c\u7f51\u7edc\u7684\u53d1\u5c55\u8d85\u4e4e\u60f3\u8c61\uff0c\u4e92\u8054\u7f51\u4e0a\u7684\u8bbe\u5907\u8fdc\u8d85 43 \u4ebf\uff0c 2019 \u5e74 11 \u670825 \u65e5\u5168\u7403\u7684 IPv4 \u5730\u5740\u5df2\u7ecf\u5f7b\u5e95\u8017\u5c3d\uff0c\u4f46\u662f\u76f4\u5230\u73b0\u5728\u5927\u5bb6\u4ecd\u7136\u8fd8\u5728\u7528 IPv4\u5e76\u6ca1\u6709\u56e0\u4e3a\u5730\u5740\u6ca1\u4e86\u800c\u65e0\u6cd5\u4e0a\u7f51\u3002\u662f\u56e0\u4e3a\u9664\u4e86 IPv6 \u4e4b\u5916\uff0c\u6211\u4eec\u4f7f\u7528 NAT \u6280\u672f\u7f13\u89e3\u4e86\u5730\u5740\u4e0d\u8db3\u7684\u95ee\u9898\u3002\u8fd9\u7bc7\u6587\u7ae0\u91cc\u7684 IP \u5168\u662f\u6307\u7684 IPv4 \uff0c\u975e IPv6\u3002<\/p>\n

    IP\u5730\u5740\u7684\u7ec4\u6210<\/h3>\n

    IP \u5730\u5740\u7531\u7f51\u7edc\u53f7 (\u7f51\u6bb5\u5730\u5740) \u548c\u4e3b\u673a\u53f7 (\u4e3b\u673a\u5730\u5740) \u4e24\u90e8\u5206\u7ec4\u6210\u3002<\/p>\n

    \"image-20230907104616493\"<\/div><\/p>\n

    \u7f51\u7edc\u53f7\u662f\u8bbe\u5907\u6240\u5728\u533a\u57df\u7684\u4e00\u79cd\u6807\u8bc6\uff0c\u7f51\u7edc\u53f7\u76f8\u540c\u7684\u8bbe\u5907\u4f4d\u4e8e\u540c\u4e00\u4e2a\u7f51\u6bb5\u5185\uff0c\u7f51\u7edc\u53f7\u4e0d\u540c\u7684\u8bbe\u5907\u901a\u8fc7\u8def\u7531\u5668\u5b9e\u73b0\u901a\u4fe1\u3002\u4e3b\u673a\u53f7\u662f\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\u4e2d\u4e0d\u540c\u8bbe\u5907\u7684\u6807\u8bc6\u4e0d\u5141\u8bb8\u540c\u4e00\u4e2a\u7f51\u6bb5\u5185\u51fa\u73b0\u91cd\u590d\u7684\u4e3b\u673a\u53f7\u3002<\/p>\n

    \"image-20230907104808764\"<\/div><\/p>\n

    \u8def\u7531\u5668\u662f\u6839\u636e\u76ee\u7684 IP \u5730\u5740\u7684\u7f51\u7edc\u53f7\u8fdb\u884c\u8def\u7531\u3002<\/p>\n

    \"image-20230907104846707\"<\/div><\/p>\n

    IP\u5730\u5740\u7684\u5206\u7c7b<\/h3>\n

    A\u7c7b<\/h4>\n

    A \u7c7b IP \u5730\u5740\u662f\u9996\u4f4d\u4ee5\u201c 0\u201d\u5f00\u5934\u7684\u5730\u5740\u3002\u4ece\u7b2c 1 \u4f4d\u5230\u7b2c 8 \u4f4d\u662f\u5b83\u7684\u7f51\u7edc\u53f7\u7f51\u7edc\u53f7\u7684\u8303\u56f4\u662f 0 ~ 127 \u3002\u5176\u4e2d 0 \u548c 127 \u5c5e\u4e8e\u4fdd\u7559\u5730\u5740\uff0c\u51cf\u53bb\u4e24\u4e2a\u4fdd\u7559\u5730\u5740\uff0c\u56e0\u6b64\u6709 126 \u4e2a\u53ef\u7528\u7684 A \u7c7b\u5730\u5740\u3002<\/p>\n

    \u540e 24 \u4f4d\u662f\u4e3b\u673a\u53f7\uff0c\u4e00\u4e2a A \u7c7b\u5730\u5740\u7684\u4e3b\u673a\u5730\u5740\u6570\u91cf\u5c31\u662f 2 \u7684 24 \u6b21\u65b9\uff0c\u537316777216 \u4e2a\u4e3b\u673a\u5730\u5740\u3002<\/p>\n

    \"image-20230907105551800\"<\/div><\/p>\n

    B\u7c7b<\/h4>\n

    B \u7c7b IP \u5730\u5740\u662f\u524d\u4e24\u4f4d\u4ee5\u201c10\u5f00\u5934\u7684\u5730\u5740\u3002\u4ece\u7b2c 1 \u4f4d\u5230\u7b2c 16 \u4f4d\u662f\u5b83\u7684\u7f51\u7edc\u53f7\uff0c\u7f51\u7edc\u53f7\u7684\u8303\u56f4\u662f 128.0 ~ 191.255 \u3002\u5176\u4e2d 128.0 \u548c 191.255 \u5c5e\u4e8e\u4fdd\u7559\u5730\u5740\uff0c\u51cf\u53bb\u4e24\u4e2a\u4fdd\u7559\u5730\u5740\uff0c\u56e0\u6b64\u6709 16382 \u4e2a\u53ef\u7528\u7684 B \u7c7b\u5730\u5740\u3002<\/p>\n

    \u540e 16 \u4f4d\u662f\u4e3b\u673a\u53f7\uff0c\u4e00\u4e2a B \u7c7b\u5730\u5740\u7684\u4e3b\u673a\u5730\u5740\u7684\u6570\u91cf\u5c31\u662f 2 \u7684 16 \u6b21\u65b9\uff0c\u537365536 \u4e2a\u4e3b\u673a\u5730\u5740\u3002<\/p>\n

    \"image-20230907105646388\"<\/div><\/p>\n

    C\u7c7b<\/h4>\n

    C \u7c7b IP \u5730\u5740\u662f\u524d\u4e09\u4f4d\u4ee5\u201c110\u201d\u5f00\u5934\u7684\u5730\u5740\u3002\u4ece\u7b2c 1 \u4f4d\u5230\u7b2c 24 \u4f4d\u662f\u5b83\u7684\u7f51\u7edc\u53f7\uff0c\u7f51\u7edc\u53f7\u7684\u8303\u56f4\u662f 192.0.0 ~ 223.255.255 \u3002\u5176\u4e2d 192.0.0 \u548c223.255.255 \u5c5e\u4e8e\u4fdd\u7559\u5730\u5740\uff0c\u51cf\u53bb\u4e24\u4e2a\u4fdd\u7559\u5730\u5740\uff0c\u56e0\u6b64\u6709 2097150 \u4e2a\u53ef\u7528\u7684\u7c7b\u5730\u5740\u3002<\/p>\n

    \u540e 8 \u4f4d\u662f\u4e3b\u673a\u53f7\uff0c\u4e00\u4e2a C \u7c7b\u5730\u5740\u7684\u4e3b\u673a\u5730\u5740\u7684\u6570\u91cf\u5c31\u662f 2 \u7684 8 \u6b21\u65b9\uff0c\u5373256 \u4e2a\u4e3b\u673a\u5730\u5740\u3002<\/p>\n

    \"image-20230907105812132\"<\/div><\/p>\n

    D\u7c7b<\/h4>\n

    D \u7c7b IP \u5730\u5740\u662f\u524d\u56db\u4f4d\u4ee5\u201c 1110\u201c\u5f00\u5934\u7684\u5730\u5740\u3002\u4ece\u7b2c 1 \u4f4d\u5230\u7b2c 32 \u4f4d\u662f\u5b83\u7684\u7f51224.0.0.0 ~ 239.255 .255.255 \u3002D \u7c7b\u5730\u5740\u7edc\u53f7\uff0c\u7f51\u7edc\u53f7\u7684\u8303\u56f4\u662f\u6ca1\u6709\u4e3b\u673a\u53f7\uff0c\u7528\u4e8e\u7ec4\u64ad\u3002<\/p>\n

    \"image-20230907105831656\"<\/div><\/p>\n

    \u7f51\u6bb5\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740<\/h3>\n

    \u5f53\u4e3b\u673a\u53f7\u5168\u4e3a 0 \u65f6\uff0c\u8868\u793a\u7684\u662f\u7f51\u6bb5\u5730\u5740\uff0c\u975e\u4e3b\u673a\u5730\u5740\u3002\u5f53\u4e3b\u673a\u53f7\u5168\u4e3a 1 \u65f6\u662f\u5e7f\u64ad\u5730\u5740\uff0c\u4e5f\u4e0d\u662f\u4e3b\u673a\u5730\u5740\u3002\u56e0\u6b64\u5728\u5206\u914d IP \u5730\u5740\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u6392\u9664\u8fd9\u4e24\u4e2a\u5730\u5740\u4f8b\u5982\u4e00\u4e2a C \u7c7b\u5730\u5740 192.168.1.0\/24 \u6700\u591a\u53ea\u6709 254 \u4e2a\u53ef\u7528\u4e3b\u673a\u5730\u5740\uff0c\u800c\u4e0d\u662f 256 \u4e2a\u3002<\/p>\n

    \"image-20230907110105634\"<\/div><\/p>\n

    IP \u5730\u5740\u4e2d\u7684\u4e3b\u673a\u53f7\u5168\u90e8\u4e3a 1 \u7684\u5c31\u662f\u5e7f\u64ad\u5730\u5740\uff0c\u5b83\u662f\u5411\u540c\u4e00\u4e2a\u7f51\u6bb5\u4e2d\u7684\u6240\u6709\u4e3b\u673a\u53d1\u9001\u6570\u636e\u5305\u3002\u4f8b\u5982\u4e00\u4e2a B \u7c7b\u4e3b\u673a\u5730\u5740 172.20.1.100 \u7684\u5e7f\u64ad\u5730\u5740\u662f172.20.255.255<\/p>\n

    \u5b50\u7f51\u63a9\u7801<\/h3>\n

    \u65e9\u671f\u7f51\u7edc\u5730\u5740\u91c7\u7528\u56fa\u5b9a\u7f51\u7edc\u4f4d\u957f\u5ea6\u7684\u65b9\u5f0f\uff0c\u4f7f IPv4 \u5730\u5740\u906d\u5230\u5927\u91cf\u6d6a\u8d39\u3002\u5982\u4eca\u7f51\u6bb5\u5730\u5740\u7684\u957f\u5ea6\u53ef\u53d8\uff0c\u540c\u65f6\u4e5f\u9700\u8981\u4e00\u79cd\u6807\u8bc6\u6765\u83b7\u53d6\u7f51\u6bb5\u5730\u5740\uff0c\u4ee5\u4fbf\u8def\u7531\u5668\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u8f6c\u53d1\uff0c\u8fd9\u79cd\u8bc6\u522b\u7801\u5c31\u662f\u5b50\u7f51\u63a9\u7801\u3002
    \n\u5b50\u7f51\u63a9\u7801\u7528 32 \u4f4d\u7684\u4e8c\u8fdb\u5236\u8868\u793a\uff0c IP \u5730\u5740\u7684\u7f51\u6bb5\u5730\u5740\u90e8\u5206\u8bbe\u7f6e\u4e3a 1\uff0c IP \u5730\u5740\u7684\u4e3b\u673a\u5730\u5740\u90e8\u5206\u8bbe\u7f6e\u4e3a 0 \u3002\u6362\u53e5\u8bdd\u8bf4\uff0c P \u5730\u5740\u6709\u591a\u5c11\u4f4d\u7f51\u6bb5\u5730\u5740\uff0c\u5b50\u7f51\u63a9\u7801\u5c31\u6709\u591a\u5c11\u4f4d\u53d6 1 \uff0c\u5176\u4f59\u90fd\u53d6 0 \u3002\u4e3a\u4e86\u65b9\u4fbf\u8bb0\u5f55\uff0c\u6bcf 8 \u4f4d\u4e3a\u4e00\u7ec4\uff0c\u4ee5\u201c.\u201d\u9694\u5f00\uff0c\u518d\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\u3002<\/p>\n

    \"image-20230907112134768\"<\/div><\/p>\n

    \u5c06\u5b50\u7f51\u63a9\u7801\u548c IP \u5730\u5740\u8fdb\u884c\u4e0e ( AND ) \u8fd0\u7b97\uff0c\u53ef\u5f97\u5230\u8fd9\u4e2a IP \u5730\u5740\u7684\u7f51\u6bb5\u5730\u5740\u3002<\/p>\n

    CIDR\u4e0eVLSM<\/h3>\n

    \u89e3\u51b3 IP \u5730\u5740\u6d6a\u8d39\u95ee\u9898\uff0c\u9664\u4e86\u4f7f\u7528\u5b50\u7f51\u63a9\u7801\uff0c\u8fd8\u4f7f\u7528\u4e86 CIDR \u548c VLSM \u6280\u672f\u3002<\/p>\n

    CIDR<\/h4>\n

    \u4e3a\u4ec0\u4e48CIDR\u6280\u672f\u53ef\u4ee5\u66f4\u6709\u6548\u7684\u5206\u914dIP\u5730\u5740\u5462\uff1f\u56e0\u4e3a\u524d\u7f00\u53ef\u8c03\u8282\u7684\u7f51\u7edc\u66f4\u7075\u6d3b\u3002\u6bd4\u5982\u4e00\u4e2a\u529e\u516c\u5ba4\u4eba\u6bd4\u8f83\u5c11\uff0c\u4ec5\u67095\u4e2a\u4eba\u5de6\u53f3\uff0c\u90a3\u4e48\u4ed6\u4eec\u5206\u914d\u4e00\u4e2a\u7f51\u7edc\u524d\u7f00\u4e3a32-3=29\u4f4d\u7684\u7f51\u7edc\uff08IP\u5730\u5740\u517132\u4f4d\uff0c\u4e3b\u673a\u53f7\u4f4d\u6570\u4e3a3\uff0c\u56e0\u4e3a2-2=6>5\uff09\uff1b\u82e5\u4e00\u4e2a\u529e\u516c\u5ba4\u6709100\u4e2a\u4eba\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u5206\u914d\u4e00\u4e2a\u7f51\u7edc\u524d\u7f00\u4e3a32-7=25\u4f4d\u7684\u7f51\u7edc\uff082-2=126>100\uff09\u3002<\/p>\n

    \u4ed6\u53ef\u4ee5\u628a\u591a\u4e2a\u7f51\u6bb5\u805a\u5408\u5230\u4e00\u8d77\uff0c\u751f\u6210\u4e00\u4e2a\u66f4\u5927\u7684\u7f51\u6bb5\uff1b\u6c47\u603b\u8def\u7531\u8868 IP \u5730\u5740\uff0c\u5206\u62c5\u8def\u7531\u8868\u538b\u529b\u3002<\/p>\n

    \"image-20230907135906632\"<\/div><\/p>\n

    VLSM<\/h4>\n

    VLSM \uff0c\u5373\u53ef\u53d8\u957f\u5b50\u7f51\u63a9\u7801\uff0c\u5b83\u53ef\u4ee5\u5bf9 A \u3001B\u3001C\u7c7b\u7684\u5730\u5740\u518d\u8fdb\u884c\u5b50\u7f51\u5212\u5206\uff0c\u4ee5\u8fbe\u5230\u5145\u5206\u5229\u7528 IP \u5730\u5740\u7684\u76ee\u7684\u3002
    \n\u5047\u5982\u4e00\u5bb6\u4f01\u4e1a\u6709 100 \u53f0\u7535\u8111\uff0c\u6309\u4ee5\u524d\u7684\u529e\u6cd5\uff0c\u53ea\u80fd\u5206\u914d\u4e00\u4e2a C \u7c7b\u5730\u5740222.222.222.0 \u3002\u4f46\u662f VLSM \u53ef\u4ee5\u5728\u4e00\u4e2a C \u7c7b\u5730\u5740\u4e0a\u5212\u5206\u51fa\u591a\u4e2a\u5b50\u7f51\u5730\u5740\uff0c\u518d\u5206\u914d\u5176\u4e2d\u4e00\u4e2a\u5bb9\u7eb3\u4e3b\u673a\u6570\u91cf\u4e0e\u7a0d\u5927\u4e8e\u4f01\u4e1a\u9700\u6c42\u6570\u91cf\u7684\u5b50\u7f51\u5730\u5740\u7ed9\u4f01\u4e1a\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0 IP \u5730\u5740\u7684\u5408\u7406\u4f7f\u7528\u3002<\/p>\n

    \"image-20230907140338395\"<\/div><\/p>\n

    \u8ba1\u7b97\u5b50\u7f51\u5730\u5740: \u5f53\u4e3b\u673a\u53f7\u6709 7 \u4f4d\u65f6\uff0c\u7f51\u7edc\u53f7\u6709 32 - 7 = 25 \u4f4d\uff0c\u4e5f\u5c31\u662f222.222.222.0\/24 \u5411\u4e3b\u673a\u4f4d\u501f\u4e86\u4e00\u4f4d\u4f5c\u4e3a\u5b50\u7f51\u4f4d\uff0c\u90a3\u4e48\u5b50\u7f51\u63a9\u7801\u4e5f\u5c31\u662f255.255.255.128\u3002\u53ef\u5206\u914d 222.222.222.0\/25 \u4f7f\u7528\u3002<\/p>\n

    \"image-20230907140429246\"<\/div><\/p>\n

    222.222.222.0\/25\u5b50\u7f51\u8be6\u60c5\uff1a<\/p>\n

    \"image-20230907140523701\"<\/div><\/p>\n

    \"image-20230907140542388\"<\/div><\/p>\n

    CIDR\u548cVLSM\u7684\u533a\u522b<\/h4>\n

    CIDR \u662f\u4e3b\u673a\u53f7\u5411\u7f51\u7edc\u53f7\u501f\u4f4d\uff0c\u76ee\u7684\u662f\u628a\u51e0\u4e2a\u7f51\u7edc\u6c47\u603b\u6210\u4e00\u4e2a\u5927\u7684\u7f51\u7edc\uff0c\u589e\u52a0\u5b50\u7f51\u4e3b\u673a\u6570\u91cf;
    \nVLSM \u662f\u7f51\u7edc\u53f7\u5411\u4e3b\u673a\u53f7\u501f\u4f4d\uff0c\u76ee\u7684\u662f\u628a\u4e00\u4e2a\u6807\u51c6\u7684\u7f51\u7edc\u5212\u5206\u6210\u51e0\u4e2a\u5b50\u7f51\uff0c\u51cf\u5c11\u5b50\u7f51\u4e3b\u673a\u6570\u91cf\u3002<\/p>\n

    \u516c\u7f51\u5730\u5740\u548c\u79c1\u6709\u5730\u5740<\/h3>\n

    IP \u5730\u5740\u5206\u4e3a\u516c\u7f51\u5730\u5740<\/strong>\u548c\u79c1\u6709\u5730\u5740\u3002\u516c\u7f51\u5730\u5740<\/strong>\u662f\u5728\u4e92\u8054\u7f51\u4e0a\u4f7f\u7528\u7684\uff0c\u79c1\u6709\u5730\u5740<\/strong>\u662f\u5728\u5c40\u57df\u7f51\u4e2d\u4f7f\u7528\u7684\u3002
    \n\u516c\u7f51\u5730\u5740\u7531 Internet NIC \u8d1f\u8d23\u5206\u914d\uff0c\u901a\u8fc7\u5b83\u76f4\u63a5\u8bbf\u95ee\u4e92\u8054\u7f51\u3002<\/p>\n

    \"image-20230907140823310\"<\/div><\/p>\n

    \u79c1\u6709\u5730\u5740<\/strong>\u662f\u4e00\u6bb5\u4fdd\u7559\u7684 IP \u5730\u5740\u3002\u53ea\u5728\u5c40\u57df\u7f51\u4e2d\u4f7f\u7528\uff0c\u65e0\u6cd5\u5728\u4e92\u8054\u7f51\u4e0a\u4f7f\u7528\u3002\u4f46\u662f\u79c1\u6709\u5730\u5740\u53ef\u4ee5\u901a\u8fc7 NAT \u6280\u672f\uff0c\u5c06\u79c1\u6709\u5730\u5740\u8f6c\u6362\u4e3a\u516c\u7f51\u5730\u5740\u63a5\u5165\u4e92\u8054\u7f51<\/strong>\u3002<\/p>\n

    \"image-20230907140859384\"<\/div><\/p>\n

    \u516c\u7f51 IP \u5730\u5740\u5728\u4e92\u8054\u7f51\u8303\u56f4\u5185\u662f\u552f\u4e00\u7684\uff0c\u79c1\u6709 IP \u5730\u5740\u53ea\u8981\u5728\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u5185\u552f\u4e00\u5373\u53ef\u3002\u5728\u4e0d\u540c\u5c40\u57df\u7f51\u5185\u51fa\u73b0\u76f8\u540c\u7684\u79c1\u6709 IP \u4e0d\u4f1a\u5f71\u54cd\u4f7f\u7528\u3002<\/p>\n

    IP\u8def\u7531<\/h3>\n

    \u8def\u7531\u662f\u8bbe\u5907\u6839\u636e P \u5730\u5740\u5bf9\u6570\u636e\u8fdb\u884c\u8f6c\u53d1\u7684\u64cd\u4f5c\u3002\u5f53\u4e00\u4e2a\u6570\u636e\u5305\u5230\u8fbe\u8def\u7531\u5668\u65f6\uff0c\u8def\u7531\u5668\u6839\u636e\u6570\u636e\u5305\u7684\u76ee\u7684\u5730\u5740\u67e5\u8be2\u8def\u7531\u8868\uff0c\u6839\u636e\u67e5\u8be2\u7ed3\u679c\u5c06\u6570\u636e\u5305\u8f6c\u53d1\u51fa\u53bb\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u662f IP \u8def\u7531\u3002<\/p>\n

    \"image-20230907162634311\"<\/div><\/p>\n

    \u8def\u7531\u8868<\/h4>\n

    \u4e3a\u4e86\u5c06\u6570\u636e\u5305\u53d1\u7ed9\u76ee\u7684\u8282\u70b9\uff0c\u6240\u6709\u8282\u70b9\u90fd\u7ef4\u62a4\u7740\u4e00\u5f20\u8def\u7531\u8868\u3002\u8def\u7531\u8868\u8bb0\u5f55 IP \u6570\u636e\u5728\u4e0b\u4e00\u8df3\u5e94\u8be5\u53d1\u7ed9\u54ea\u4e2a\u8def\u7531\u5668\u3002 IP \u5305\u5c06\u6839\u636e\u8fd9\u4e2a\u8def\u7531\u8868\u5728\u5404\u4e2a\u6570\u636e\u94fe\u8def\u4e0a\u4f20\u8f93\u3002<\/p>\n

    \"image-20230907162722261\"<\/div><\/p>\n

    \u4e00\u79cd\u662f\u624b\u52a8\u8bbe\u7f6e\uff0c\u4e5f\u53eb\u9759\u6001\u8def\u7531\u3002\u53e6\u4e00\u79cd\u662f\u8def\u7531\u5668\u4e4b\u8def\u7531\u8868\u7684\u751f\u6210\u65b9\u5f0f\u6709\u4e24\u79cd:\u95f4\u901a\u8fc7\u4ea4\u6362\u4fe1\u606f\u81ea\u52a8\u5237\u65b0\uff0c\u4e5f\u53eb\u52a8\u6001\u8def\u7531<\/p>\n\n\n\n\n\n\n
    \u76ee\u7684\u5730\u5740<\/th>\n\u6765\u6e90<\/th>\n\u4e0b\u4e00\u8df3<\/th>\n<\/tr>\n<\/thead>\n
    198.48.10.0\/24<\/td>\n\u9759\u6001\u8def\u7531<\/td>\n192.1.1.1<\/td>\n<\/tr>\n
    202.16.88.0\/24<\/td>\nOSPF<\/td>\n10.0.12.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Hop \uff0c\u4e2d\u6587\u53eb\u201c\u8df3\u201d\u3002\u5b83\u662f\u6307\u7f51\u7edc\u4e2d\u7684\u4e00\u4e2a\u533a\u95f4\u3002 IP \u5305\u5c31\u662f\u5728\u7f51\u7edc\u4e2d\u4e00\u8df3\u4e00\u8df3\u7684\u8f6c\u53d1\uff0c\u5728\u6bcf\u4e00\u4e2a\u533a\u95f4\u5185\u51b3\u5b9a IP \u5305\u4e0b\u4e00\u8df3\u7684\u8def\u5f84\u3002<\/p>\n

    \u8df3\u662f\u6307\u6570\u636e\u94fe\u8def\u4e2d\u5e7f\u64ad\u57df\u7684\u533a\u95f4\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e0d\u7ecf\u8fc7\u8def\u7531\u5668\u800c\u80fd\u76f4\u63a5\u5230\u8fbe\u7684\u76f8\u8fde\u4e3b\u673a\u6216\u8def\u7531\u5668\u7f51\u5361\u7684\u4e00\u4e2a\u533a\u95f4\u3002<\/p>\n

    \"image-20230907163400375\"<\/div><\/p>\n

    IP \u6570\u636e\u5305\u5c31\u50cf\u5305\u88f9\uff0c\u800c\u9001\u8d27\u8f66\u5c31\u50cf\u6570\u636e\u94fe\u8def\u3002\u5305\u88f9\u4e0d\u53ef\u80fd\u81ea\u5df1\u79fb\u52a8\uff0c\u5fc5\u987b\u6709\u9001\u8d27\u8f66\u627f\u8f7d\u8f6c\u8fd0\u3002<\/p>\n

    \u800c\u4e00\u8f86\u9001\u8d27\u8f66\u53ea\u80fd\u5c06\u5305\u88f9\u9001\u5230\u67d0\u4e2a\u533a\u95f4\u8303\u56f4\u5185\u3002\u6bcf\u4e2a\u4e0d\u540c\u533a\u95f4\u7684\u5305\u88f9\u5c06\u7531\u5bf9\u5e94\u7684\u9001\u8d27\u8f66\u627f\u8f7d\u3001\u8fd0\u8f93\u3002 IP \u7684\u5de5\u4f5c\u539f\u7406\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n

    \"image-20230907163654401\"<\/div><\/p>\n

    \u8def\u7531\u6761\u76ee\u7c7b\u578b<\/h3>\n

    \u9ed8\u8ba4\u8def\u7531<\/h4>\n

    \u9ed8\u8ba4\u8def\u7531\u662f\u6307\u8def\u7531\u8868\u4e2d\u4efb\u4f55\u4e00\u4e2a\u5730\u5740\u90fd\u80fd\u4e0e\u4e4b\u5339\u914d\u7684\u6761\u76ee\u3002\u6240\u6709\u6570\u636e\u5305\u90fd\u53ef\u4ee5\u4f7f\u7528\u9ed8\u8ba4\u8def\u7531\u8fdb\u884c\u6570\u636e\u8f6c\u53d1\u3002\u9ed8\u8ba4\u8def\u7531\u4e3a 0.0.0.0\/0 \u6216 default\u3002<\/p>\n

    \"image-20230907164029362\"<\/div><\/p>\n

    \u4e3b\u673a\u8def\u7531<\/h4>\n

    \u201cIP\u5730\u5740\/32\u201d\u88ab\u79f0\u4e3a\u4e3b\u673a\u8def\u7531\uff0c\u5b83\u662f\u8def\u7531\u8868\u4e2d\u6307\u5411\u5355\u4e2a IP \u5730\u5740\u6216\u4e3b\u673a\u540d\u7684\u8def\u7531\u6761\u76ee\u3002\u4f8b\u5982: 192.168.153.15\/32 \u5c31\u662f\u4e00\u6761\u4e3b\u673a\u8def\u7531\uff0c\u8868\u793a\u6574\u4e2a IP \u5730\u5740\u7684\u6240\u6709\u4f4d\u90fd\u5c06\u53c2\u4e0e\u8def\u7531\u3002<\/p>\n

    \u73af\u56de\u5730\u5740<\/h4>\n

    \u4ee5 127 \u5f00\u5934\u7684 IP \u5730\u5740\u90fd\u662f\u73af\u56de\u5730\u5740\uff0c\u5176\u6240\u5728\u7684\u56de\u73af\u63a5\u53e3\u53ef\u4ee5\u7406\u89e3\u4e3a\u865a\u62df\u7f51\u5361\u3002\u4f7f\u7528\u56de\u73af\u5730\u5740\u65f6\uff0c\u6570\u636e\u5305\u4f1a\u76f4\u63a5\u88ab\u4e3b\u673a\u7684 IP \u5c42\u83b7\u53d6\uff0c\u800c\u4e0d\u7ecf\u8fc7\u94fe\u8def\u5c42\uff0c\u4e5f\u4e0d\u4f1a\u6d41\u5411\u7f51\u7edc\u3002\u4e00\u822c\u7528\u6765\u68c0\u67e5\u4e3b\u673a\u4e0a\u8fd0\u884c\u7684\u7f51\u7edc\u670d\u52a1\u662f\u5426\u6b63\u5e38\u3002<\/p>\n

    \u8def\u7531\u6c47\u603b<\/h3>\n

    \u8def\u7531\u6c47\u603b\u4e3b\u8981\u662f\u4e3a\u4e86\u51cf\u5c11\u8def\u7531\u6761\u76ee\uff0c\u628a\u53ef\u4ee5\u805a\u5408\u7684\u8def\u7531\u6c47\u805a\u4e3a\u4e00\u4e2a\u5927\u7f51\u7edc\u3002
    \n\u8def\u7531\u8868\u8d8a\u5927\uff0c\u67e5\u627e\u8def\u7531\u8868\u6240\u9700\u7684\u5185\u5b58\u548c CPU \u4e5f\u5c31\u8d8a\u591a\uff0c\u65f6\u95f4\u4e5f\u4f1a\u8d8a\u957f\uff0c\u5bfc\u81f4\u8f6c\u53d1 IP \u6570\u636e\u5305\u7684\u6027\u80fd\u4e0b\u964d\u3002\u5982\u679c\u60f3\u8981\u642d\u5efa\u5927\u89c4\u6a21\u3001\u9ad8\u6027\u80fd\u7684\u7f51\u7edc\uff0c\u5c31\u9700\u8981\u5c3d\u53ef\u80fd\u7684\u8def\u7531\u8868\u7684\u5927\u5c0f\u3002<\/p>\n

    \"image-20230907164300916\"<\/div><\/p>\n

    IP\u5206\u7247\u4e0e\u91cd\u7ec4<\/h3>\n

    \u6570\u636e\u94fe\u8def\u4e0d\u540c\uff0cMTU\u4e0d\u540c<\/h4>\n

    \u6bcf\u79cd\u6570\u636e\u94fe\u8def\u7684\u6700\u5927\u4f20\u8f93\u5355\u5143 ( MTU )\u4e0d\u540c\uff0c\u7f51\u7edc\u5c42\u7684 IP \u662f\u6570\u636e\u94fe\u8def\u7684\u4e0a\u4e00\u5c42\uff0c IP \u901a\u8fc7\u5206\u7247\u5c4f\u853d\u6570\u636e\u94fe\u8def\u7684\u5dee\u5f02\uff0c\u5b9e\u73b0\u4e0d\u540c\u6570\u636e\u94fe\u8def\u4e92\u901a\u3002\u4ece IP \u7684\u4e00\u5c42\u770b\uff0c\u5b83\u5b8c\u5168\u53ef\u4ee5\u5ffd\u7565\u5404\u4e2a\u6570\u636e\u94fe\u8def\u4e0a\u7684 MTU \uff0c\u53ea\u9700\u8981\u6309\u7167\u6e90 IP \u5730\u5740\u53d1\u9001\u7684\u957f\u5ea6\u63a5\u6536\u6570\u636e\u5305\u3002<\/p>\n

    \"image-20230907164504067\"<\/div><\/p>\n

    IP\u62a5\u6587\u7684\u5206\u7247\u4e0e\u91cd\u7ec4<\/h4>\n

    \u5f53\u9047\u5230 IP \u6570\u636e\u5305\u5927\u4e8e\u6570\u636e\u94fe\u8def MTU \u65f6\uff0c\u5f80\u5f80\u65e0\u6cd5\u76f4\u63a5\u53d1\u9001\u51fa\u53bb\uff0c\u4e3b\u673a\u6216\u8def\u7531\u5668\u5c31\u4f1a\u5bf9 IP \u6570\u636e\u5305\u8fdb\u884c\u5206\u7247\u5904\u7406\u3002
    \n\u7ecf\u8fc7\u5206\u7247\u540e\u7684 IP \u6570\u636e\uff0c\u53ea\u4f1a\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fdb\u884c\u91cd\u7ec4\uff0c\u4e2d\u9014\u7ecf\u8fc7\u8def\u7531\u5668\u65f6\u4e0d\u4f1a\u8fdb\u884c\u91cd\u7ec4\u3002<\/p>\n

    \"image-20230907164557048\"<\/div><\/p>\n

    \u8def\u5f84MTU\u53d1\u73b0<\/h3>\n

    \u5206\u7247\u673a\u5236\u6709\u4e24\u70b9\u4e0d\u8db3\uff1a\u52a0\u91cd\u8def\u7531\u5668\u7684\u5904\u7406\u6027\u80fd\uff1b\u5728\u5206\u7247\u4f20\u8f93\u4e2d\uff0c\u4e00\u65e6\u67d0\u4e2a\u5206\u7247\u4e22\u5931\uff0c\u4f1a\u9020\u6210\u6574\u4e2a IP \u6570\u636e\u5305\u4f5c\u5e9f\u3002
    \n\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8981\u4f7f\u7528\u8def\u5f84 MTU \u53d1\u73b0 ( Path MTU Discovery ) \u6280\u672f<\/strong>\u3002\u8def\u5f84 MTU \u662f\u6307\u4ece\u53d1\u9001\u7aef\u4e3b\u673a\u5230\u63a5\u6536\u7aef\u4e3b\u673a\u4e4b\u95f4\u4e0d\u9700\u8981\u5206\u7247\u65f6\u6700\u5927 MTU\u503c<\/strong>\u3002\u5373\u8def\u5f84\u4e2d\u5b58\u5728\u7684\u6240\u6709\u6570\u636e\u94fe\u8def\u4e2d\u6700\u5c0f\u7684 MTU \u3002\u8def\u8def\u5f84MTU \u53d1\u73b0\u662f\u4ece\u53d1\u9001\u4e3b\u673a\u6309\u7167\u8def\u5f84 MTU \u7684\u503c\u5c06\u6570\u636e\u62a5\u5206\u7247\u540e\u8fdb\u884c\u53d1\u9001\uff0c\u907f\u514d\u5728\u4e2d\u9014\u7684\u8def\u7531\u5668\u4e0a\u8fdb\u884c\u5206\u7247\u5904\u7406\u3002<\/p>\n

    \"image-20230907165803200\"<\/div><\/p>\n

    \u8def\u5f84MTU\u53d1\u73b0\u7684\u5de5\u4f5c\u539f\u7406<\/h4>\n
      \n
    1. \n

      \u53d1\u9001\u7aef\u4e3b\u673a\u53d1\u9001 IP \u6570\u636e\u5305\u65f6\u5c06\u5176\u5934\u90e8\u7684\u5206\u7247\u7981\u6b62\u6807\u5fd7\u4f4d\u8bbe\u7f6e\u4e3a 1 \u3002\u6839\u636e\u8fd9\u4e2a\u6807\u5fd7\u4f4d\uff0c\u9014\u4e2d\u7684\u8def\u7531\u5668\u5373\u4f7f\u6536\u5230\u9700\u8981\u5206\u7247\u7684\u5927\u5305\uff0c\u4e5f\u4e0d\u4f1a\u5206\u7247\uff0c\u800c\u662f\u76f4\u63a5\u5c06\u5305\u4e22\u5f03\u3002\u4e4b\u540e\u901a\u8fc7\u4e00\u4e2a ICMP \u4e0d\u53ef\u8fbe\u6d88\u606f\u5c06\u6570\u636e\u94fe\u8def\u4e0a MTU \u503c\u7ed9\u53d1\u9001\u7aef\u4e3b\u673a\u3002<\/p>\n<\/li>\n

    2. \n

      \u53d1\u9001\u7aef\u4e3b\u673a\u6839\u636e\u6536\u5230\u7684 MTU \u503c\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u5206\u7247\u5904\u7406\uff0c\u518d\u628a P \u6570\u636e\u5305\u53d1\u9001\u7ed9\u76f8\u540c\u7684\u76ee\u7684\u4e3b\u673a\u3002\u5982\u6b64\u91cd\u590d\uff0c\u76f4\u5230\u6570\u636e\u5305\u88ab\u53d1\u9001\u5230\u76ee\u6807\u4e3b\u673a\u4e3a\u6b62\u6ca1\u6709\u518d\u6536\u5230\u4efb\u4f55 ICMP \uff0c\u5c31\u8ba4\u4e3a\u6700\u540e\u4e00\u6b21 ICMP \u6240\u901a\u77e5\u7684 MTU \u5373\u662f\u4e00\u4e2a\u5408\u9002\u7684 MTU\u503c\u3002 MTU \u503c\u81f3\u5c11\u53ef\u4ee5\u7f13\u5b58\u7ea6 10 \u5206\u949f\uff0c\u5728\u8fd9 10 \u5206\u949f\u5185\u4f7f\u7528\u521a\u5f97\u5230\u7684 MTU\u8fc7\u4e86 10 \u5206\u949f\u540e\u5c31\u91cd\u65b0\u505a\u4e00\u6b21\u8def\u5f84 MTU \u53d1\u73b0\u3002
      \n\u4e0a\u9762\u7684\u4f8b\u5b50\u662f UDP \uff0c\u5982\u679c\u662f\u5728 TCP \u7684\u60c5\u51b5\u4e0b\uff0c\u6839\u636e\u8def\u5f84 MTU \u7684\u5927\u5c0f\u8ba1\u7b97\u51fa\u6700\u5927\u6bb5\u957f\u5ea6 ( MSS)<\/strong>\uff0c\u7136\u540e\u518d\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u6570\u636e\u5305\u7684\u53d1\u9001\u3002\u56e0\u6b64\uff0c\u5728TCP \u4e2d\u5982\u679c\u4f7f\u7528\u8def\u5f84 MTU \u53d1\u73b0\uff0c IP \u5c42\u5219\u4e0d\u4f1a\u518d\u5206\u7247\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u8def\u7531\u5668\u4e09\u5c42\u8f6c\u53d1\u539f\u7406<\/h3>\n

      \u8def\u7531\u5668\u6709\u591a\u4e2a\u7aef\u53e3\uff0c\u5206\u522b\u8fde\u63a5\u4e0d\u540c\u7684\u6570\u636e\u94fe\u8def\u3002\u5b83\u901a\u8fc7\u8bc6\u522b\u76ee\u7684 IP \u5730\u5740\u7684\u7f51\u7edc\u53f7<\/strong>\uff0c\u518d\u6839\u636e\u8def\u7531\u8868\u8fdb\u884c\u8f6c\u53d1\uff0c\u8def\u7531\u8868\u4e2d\u6709\u5339\u914d<\/strong>\u7684\u8def\u7531\u6761\u76ee\u624d\u4f1a\u8f6c\u53d1\uff0c\u65e0\u5339\u914d\u7684\u8def\u7531\u6761\u76ee\u5219\u76f4\u63a5\u4e22\u5f03\u3002\u8def\u7531\u6761\u76ee\u65e2\u53ef\u4ee5\u624b\u52a8\u8bbe\u7f6e\u9759\u6001\u8def\u7531\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8def\u7531\u534f\u8bae\u81ea\u52a8\u751f\u6210\u52a8\u6001\u8def\u7531\u3002<\/p>\n

      \u5982\u4f55\u8fdb\u884c\u4e09\u5c42\u8f6c\u53d1<\/h4>\n

      \u5f53\u4e00\u53f0\u8def\u7531\u5668\u6536\u5230\u4e00\u4e2a\u6570\u636e\u5305\u65f6\uff0c\u4f1a\u6267\u884c\u5982\u4e0b\u6b65\u9aa4:<\/p>\n

        \n
      1. \n

        \u5bf9\u6570\u636e\u5305\u8fdb\u884c\u89e3\u5c01\u88c5\u3002
        \n\u901a\u8fc7\u89e3\u5c01\u88c5\uff0c\u67e5\u770b\u7f51\u7edc\u5c42\u5934\u90e8\u4fe1\u606f\u7684\u76ee\u7684 IP \u5730\u5740<\/strong><\/p>\n<\/li>\n

      2. \n

        \u5728\u8def\u7531\u8868\u4e2d\u67e5\u627e\u5339\u914d\u7684\u8def\u7531\u6761\u76ee<\/strong>\u3002
        \n\u67e5\u627e\u5339\u914d\u7684\u8def\u7531\u6761\u76ee\uff0c\u5c31\u9700\u8981\u5c06\u6570\u636e\u5305\u7684\u76ee\u7684 IP \u5730\u5740\u4e0e\u5404\u4e2a\u8def\u7531\u6761\u76ee\u7684\u7f51\u6bb5\u5730\u5740\u5148\u8fdb\u884c\u4e8c\u8fdb\u5236\u4e0e ( AND ) \u8fd0\u7b97<\/strong>\uff0c\u518d\u5c06\u8fd0\u7b97\u7ed3\u679c\u4e0e\u8def\u7531\u6761\u76ee\u7684\u7f51\u6bb5\u5730\u5740\u8fdb\u884c\u6bd4\u8f83\uff0c\u82e5\u4e00\u81f4\u5219\u8be5\u6761\u76ee\u4e0e\u76ee\u7684 IP \u5730\u5740\u76f8\u5339\u914d<\/strong>\u3002\u6700\u540e\uff0c\u4e0e\u6240\u6709\u8def\u7531\u6761\u76ee\u5b8c\u6210\u8fd0\u7b97\u548c\u6bd4\u8f83\uff0c\u53ef\u5f97\u5230\u4e00\u6761\u6216\u591a\u6761\u76f8\u5339\u914d\u7684\u8def\u7531\u6761\u76ee\u3002\u4e5f\u53ef\u80fd\u6ca1\u6709\u5339\u914d\u7684\u8def\u7531\u6761\u76ee\uff0c\u90a3\u4e48\u4e22\u5f03\u6570\u636e\u5305\u3002<\/p>\n

        \"image-20230907170556107\"<\/div><\/p>\n<\/li>\n
      3. \n

        \u4ece\u591a\u4e2a\u5339\u914d\u9879\u4e2d\u9009\u62e9\u63a9\u7801\u6700\u957f\u7684\u8def\u7531\u6761\u76ee<\/strong>\u3002\u5982\u679c\u8def\u7531\u8868\u4e2d\u6709\u591a\u6761\u8def\u7531\u6761\u76ee\u90fd\u5339\u914d\u6570\u636e\u5305\u7684\u76ee\u7684IP\u5730\u5740\uff0c\u5219\u8def\u7531\u5668\u4f1a\u9009\u62e9\u63a9\u7801\u957f\u5ea6\u6700\u957f\u7684\u8def\u7531\u6761\u76ee<\/strong>\uff0c\u8fd9\u79cd\u5339\u914d\u65b9\u5f0f\u79f0\u4e3a\u6700\u957f\u5339\u914d\u539f\u5219<\/strong>\u3002\u4f8b\u5982: 10.1.3.10 \u7684\u7f51\u7edc\u5730\u5740\u4e0e 10.1.3.0\/16 \u548c 10.1.3.0\/24 \u4e24\u9879\u90fd\u5339\u914d\u8fd9\u65f6\u5e94\u8be5\u9009\u62e9\u5339\u914d\u5ea6\u6700\u957f\u7684 10.1.3.0\/24 \u3002<\/p>\n

        \"image-20230907170657757\"<\/div><\/p>\n
          \n
        1. \n

          \u5c06\u6570\u636e\u5305\u6309\u7167\u76f8\u5e94\u8def\u7531\u6761\u76ee\u8fdb\u884c\u8f6c\u53d1\u8def\u7531\u6761\u76ee\u4e2d\u5305\u542b\u4e0b\u4e00\u8df3\u548c\u51fa\u63a5\u53e3\u3002<\/p>\n

          \u5f53\u8def\u7531\u5668\u627e\u5230\u76f8\u5e94\u7684\u8def\u7531\u6761\u76ee\u540e\uff0c\u5b83\u5c31\u4f1a\u6839\u636e\u5bf9\u5e94\u7684\u4e0b\u4e00\u8df3\u548c\u51fa\u63a5\u53e3\uff0c\u5c06\u6570\u636e\u5305\u4ece\u51fa\u63a5\u53e3\u53d1\u9001\u6570\u636e\u7ed9\u4e0b\u4e00\u8df3\u8bbe\u5907\u3002<\/p>\n

          \"image-20230907171135588\"<\/div><\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

          ARP\u534f\u8bae<\/h3>\n

          \u53ea\u8981\u786e\u5b9a\u4e86 IP \u5730\u5740\uff0c\u5c31\u53ef\u4ee5\u5411\u8fd9\u4e2a\u76ee\u6807\u5730\u5740\u53d1\u9001 IP \u6570\u636e\u62a5\u6587\u3002\u4f46\u662f\u5728\u8fdb\u884c\u5b9e\u9645\u901a\u4fe1\u65f6\uff0c\u8fd8\u8981\u77e5\u9053\u6bcf\u4e2a IP \u5730\u5740\u6240\u5bf9\u5e94\u7684 MAC \u5730\u5740\u3002
          \n\u5730\u5740\u89e3\u6790\u534f\u8bae\uff0c\u7b80\u79f0 ARP \u534f\u8bae\u3002\u662f\u6839\u636e\u76ee\u7684\u8bbe\u5907\u7684 IP \u5730\u5740\u6765\u67e5\u8be2\u5bf9\u5e94 MAC\u5730\u5740\u7684\u534f\u8bae\u3002<\/p>\n

          ARP\u7684\u5de5\u4f5c\u539f\u7406<\/h4>\n

          \u5f53\u4e3b\u673a A \u5411\u540c\u4e00\u4e2a\u7f51\u6bb5\u5185\u7684\u4e3b\u673a C \u53d1\u9001\u6570\u636e\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u4e3b\u673a C \u7684 MAC\u5730\u5740\u3002<\/h5>\n

          \"image-20230907171552380\"<\/div><\/p>\n
            \n
          1. \n

            ARP \u8bf7\u6c42: \u4e3b\u673a A \u4ee5\u4e3b\u673a C \u7684 IP \u5730\u5740\u4e3a\u76ee\u7684IP\u5730\u5740<\/strong>\uff0c\u4ee5\u5e7f\u64ad MAC \u5730\u5740\u4e3a\u76ee\u7684 MAC \u5730\u5740\uff0c\u5728\u540c\u7f51\u6bb5\u5185\u53d1\u9001\u8fd9\u4e2a\u5e7f\u64ad\u62a5\u6587\uff0c\u8fd9\u4e2a\u62a5\u6587\u5c31\u53eb ARP \u8bf7\u6c42\u62a5\u6587<\/strong>\u3002
            \n\u4e8c\u5c42\u4ea4\u6362\u673a\u4e0d\u67e5\u770b IP \u5730\u5740\uff0c\u6839\u636e\u76ee\u7684 MAC \u5730\u5740\u5c06\u62a5\u6587\u9664\u63a5\u6536\u7aef\u53e3\u5916\u7684\u6240\u6709\u7aef\u53e3\u53d1\u9001\u3002<\/p>\n<\/li>\n

          2. \n

            ARP \u54cd\u5e94: \u4e3b\u673a C \u53d1\u73b0\u76ee\u7684 IP \u5730\u5740\u662f\u81ea\u5df1\u7684 IP \u5730\u5740\uff0c\u4e8e\u662f\u4e3b\u673a C \u4ee5\u81ea\u5df1 MAC \u5730\u5740\u548c IP \u5730\u5740\u4f5c\u4e3a\u6e90 MAC \u5730\u5740\u548c\u6e90 IP \u5730\u5740<\/strong>\uff0c\u4ee5\u4e3b\u673a A \u7684MAC \u5730\u5740\u548c IP \u5730\u5740\u4f5c\u4e3a\u76ee\u7684 MAC \u5730\u5740\u548c\u76ee\u7684 IP \u5730\u5740<\/strong>\uff0c\u53d1\u9001\u54cd\u5e94\u62a5\u6587\u7ed9\u4e3b\u673a A \uff0c\u8fd9\u4e2a\u62a5\u6587\u5c31\u53eb ARP \u54cd\u5e94\u62a5\u6587<\/strong>\u3002<\/p>\n

            \u5176\u5b83\u4e3b\u673a\u6536\u5230\u4e3b\u673a A \u7684 ARP \u8bf7\u6c42\u62a5\u6587\uff0c\u56e0\u4e3a\u76ee\u7684 IP \u5730\u5740\u4e0d\u662f\u81ea\u5df1\u7684 IP \u5730\u5740\uff0c\u56e0\u6b64\u4e0d\u4f1a\u8fdb\u884c\u54cd\u5e94\u3002\u5f53\u4e3b\u673a A \u5728\u53d1\u9001 ARP \u5e7f\u64ad\u8bf7\u6c42\u62a5\u6587\u65f6\uff0c\u4e8c\u5c42\u4ea4\u6362\u673a\u5df2\u7ecf\u6709\u4e3b\u673a A \u7684 MAC\u5730\u5740\u8868\u6761\u76ee\u3002\u5f53\u6536\u5230\u4e3b\u673a C \u53d1\u9001\u7684\u5355\u64ad ARP \u54cd\u5e94\u62a5\u6587\u65f6\uff0c\u4e8c\u5c42\u4ea4\u6362\u673a\u5c06\u62a5\u6587\u4ece\u76f8\u5e94\u7aef\u53e3\u53d1\u9001\u51fa\u53bb\u3002\u5e76\u5c06\u4e3b\u673a C \u7684 MAC \u5730\u5740\u548c\u5bf9\u5e94\u7aef\u53e3\u8bb0\u5f55\u5230 MAC\u5730\u5740\u8868\u4e2d\u3002<\/p>\n

            \"image-20230907171848709\"<\/div><\/p>\n
              \n
            1. \n

              \u66f4\u65b0 ARP \u7f13\u5b58\u8868: \u4e3b\u673a A \u6536\u5230 ARP \u54cd\u5e94\u62a5\u6587\u540e\uff0c\u5c06\u4e3b\u673a C \u7684 IP \u5730\u5740\u548c MAC \u5730\u5740\u8bb0\u5f55\u5230 ARP \u7f13\u5b58\u8868\u4e2d\u3002\u4e0b\u6b21\u518d\u5411\u4e3b\u673a C \u53d1\u9001\u6570\u636e\u65f6\uff0c\u76f4\u63a5\u5c06\u7f13\u5b58\u7684\u76ee\u7684 MAC \u5730\u5740\u8fdb\u884c\u5c01\u88c5\u3002<\/p>\n

              \"image-20230907171937931\"<\/div><\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
              \u5f53\u4e3b\u673a A \u5411\u4e0d\u540c\u7f51\u6bb5\u7684\u4e3b\u673a C \u53d1\u9001\u6570\u636e\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u4e3b\u673a C \u7684 MAC \u5730\u5740\u3002<\/h5>\n

              \"image-20230907172523772\"<\/div><\/p>\n
                \n
              1. \u4e3b\u673a A \u4f7f\u7528\u4e3b\u673a C\u7684 IP \u5730\u5740\u67e5\u8be2 ARP\uff0cARP \u53d1\u73b0\u4e3b\u673a C \u4e0d\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\uff0c\u9700\u8981\u901a\u8fc7\u9ed8\u8ba4\u7f51\u5173 (\u5373\u9ed8\u8ba4\u8def\u7531\u7684\u4e0b\u4e00\u8df3\u5730\u5740) \uff0c\u4f46\u662f\u6ca1\u6709\u7f51\u5173 MAC\u5730\u5740\u3002<\/li>\n<\/ol>\n

                \"image-20230907173202463\"<\/div><\/p>\n
                  \n
                1. \n

                  \u4e3b\u673a A \u5148\u5c06\u53d1\u9001\u7ed9\u4e3b\u673a C \u7684\u6570\u636e\u653e\u5165\u7f13\u5b58\u4e2d\uff0c\u7136\u540e\u53d1\u9001 ARP \u8bf7\u6c42\u62a5\u6587\uff0c\u4e3b\u673a A \u4ee5\u7f51\u5173 IP \u5730\u5740\u4e3a\u76ee\u7684 IP \u5730\u5740\u53d1\u9001 ARP \u5e7f\u64ad\u8bf7\u6c42\u62a5\u6587\u3002<\/p>\n

                  \"image-20230907173607965\"<\/div><\/p>\n<\/li>\n
                2. \n

                  \u8def\u7531\u5668\u6536\u5230 ARP \u5e7f\u64ad\u8bf7\u6c42\u62a5\u6587\u540e\uff0c\u5c06\u4e3b\u673a A \u7684 MAC \u5730\u5740\u548c\u5bf9\u5e94\u7aef\u53e3\u6dfb\u52a0\u5230\u81ea\u5df1\u7684 MAC \u8868\u4e2d\uff0c\u7136\u540e\u67e5\u770b\u76ee\u7684 IP \u5730\u5740\u53d1\u73b0\u662f\u8bf7\u6c42\u81ea\u5df1\u7684 MAC \u5730\u5740\u4e8e\u662f\u5355\u64ad\u53d1\u9001 ARP \u54cd\u5e94\u62a5\u6587<\/p>\n

                  \"image-20230907173633948\"<\/div><\/p>\n<\/li>\n
                3. \n

                  \u4e3b\u673a A \u6536\u5230 ARP \u54cd\u5e94\u62a5\u6587\u540e\uff0c\u5c06\u53d1\u9001\u7ed9\u4e3b\u673a C \u7684\u6570\u636e\u5c01\u88c5\u7f51\u5173 MAC \u5730\u5740<\/strong>\u4e3a\u76ee\u7684 MAC \u5730\u5740\u8fdb\u884c\u53d1\u9001\u3002<\/p>\n

                  \"image-20230908090349801\"<\/div><\/p>\n<\/li>\n
                4. \n

                  \u8def\u7531\u5668\u6536\u5230\u62a5\u6587\u540e\uff0c\u67e5\u770b\u76ee\u7684 IP \u5730\u5740\uff0c\u662f\u53d1\u9001\u7ed9\u4e3b\u673a C \u7684\uff0c\u4e8e\u662f\u67e5\u8be2\u8def\u7531\u8868\u4ece\u76f8\u5e94\u7aef\u53e3\u53d1\u9001\u6570\u636e\u3002\u7531\u4e8e\u6ca1\u6709\u4e3b\u673a C \u7684 MAC \u5730\u5740\uff0c\u8def\u7531\u5668\u53d1\u9001 ARP\u8bf7\u6c42\u62a5\u6587\uff0c\u6e90 MAC \u5730\u5740\u548c\u6e90 IP \u5730\u5740\u66ff\u6362\u4e3a\u53d1\u9001\u7aef\u53e3\u7684MAC \u5730\u5740\u548c IP \u5730\u5740\u3002<\/p>\n

                  \"image-20230908090401724\"<\/div><\/p>\n<\/li>\n
                5. \n

                  \u4e3b\u673a C \u6536\u5230 ARP \u8bf7\u6c42\u62a5\u6587\u540e\uff0c\u6dfb\u52a0\u8def\u7531\u5668\u7684\u7aef\u53e3\u548c MAC \u5730\u5740\u5230 MAC \u5730\u5740\u8868\uff0c\u5355\u64ad\u53d1\u9001 ARP \u54cd\u5e94\u62a5\u6587\u3002<\/p>\n

                  \"image-20230908090415223\"<\/div><\/p>\n<\/li>\n
                6. \n

                  \u8def\u7531\u5668\u6536\u5230\u4e3b\u673a C \u7684 MAC \u5730\u5740\u540e\uff0c\u5c06\u5176\u6dfb\u52a0\u5230 MAC \u5730\u5740\u8868\u4e2d\u3002\u5c06\u4e3b\u673a A\u53d1\u9001\u7ed9\u4e3b\u673a C \u7684\u62a5\u6587\u91cd\u65b0\u5c01\u88c5\uff0c\u4ee5\u81ea\u5df1\u7684 MAC \u5730\u5740\u4e3a\u6e90 MAC \u5730\u5740\uff0c\u4ee5\u4e3b\u673a \u7684 MAC \u5730\u5740\u4e3a\u76ee\u7684 MAC \u5730\u5740\uff0c\u53d1\u9001\u7ed9\u4e3b\u673a C\u3002<\/p>\n

                  \"image-20230908090716354\"<\/div><\/p>\n<\/li>\n
                7. \n

                  \u4e3b\u673a C \u6536\u5230\u4e3b\u673a A \u53d1\u9001\u7684\u6570\u636e\uff0c\u53d1\u9001\u8fc7\u7a0b\u7ed3\u675f\u3002<\/p>\n

                  \u5f53\u4e3b\u673a C \u5411\u4e3b\u673a A \u53d1\u9001\u56de\u590d\u62a5\u6587\u65f6\uff0c\u540c\u4e3b\u673a A \u5411\u4e3b\u673a C \u53d1\u9001\u6570\u636e\u7684\u6b65\u9aa4\u3002<\/p>\n<\/li>\n<\/ol>\n

                  ARP\u4ee3\u7406<\/h4>\n

                  \u5982\u679c ARP \u8bf7\u6c42\u662f\u4ece\u4e00\u4e2a\u7f51\u7edc\u7684\u4e3b\u673a\u53d1\u5f80\u540c\u4e00\u7f51\u6bb5\u5374\u4e0d\u5728\u540c\u4e00\u7269\u7406\u7f51\u7edc\u4e0a\u7684\u53e6-\u53f0\u4e3b\u673a\uff0c\u90a3\u4e48\u8fde\u63a5\u5b83\u4eec\u7684\u5177\u6709\u4ee3\u7406 ARP \u529f\u80fd\u7684\u8bbe\u5907\u5c31\u53ef\u4ee5\u56de\u7b54\u8be5\u8bf7\u6c42\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4f5c\u4ee3\u7406 ARP<\/strong>\u3002\u4ee3\u7406 ARP \u529f\u80fd\u5c4f\u853d\u4e86\u5206\u79bb\u7684\u7269\u7406\u7f51\u7edc\uff0c\u8ba9\u7528\u6237\u4f7f\u7528\u8d77\u6765\uff0c\u8ddf\u5728\u540c\u4e00\u4e2a\u7269\u7406\u7f51\u7edc\u4e0a\u4e00\u6837\u3002<\/p>\n

                  \u514d\u8d39ARP<\/h4>\n

                  \u514d\u8d39 ARP \u662f\u4e00\u79cd\u7279\u6b8a\u7684 ARP \u8bf7\u6c42\uff0c\u5b83\u5e76\u975e\u901a\u8fc7 IP \u627e\u5230\u5bf9\u5e94\u7684 MAC \u5730\u5740\uff0c\u800c\u662f\u5f53\u4e3b\u673a\u542f\u52a8\u7684\u65f6\u5019\uff0c\u53d1\u9001\u4e00\u4e2a\u514d\u8d39 ARP \u8bf7\u6c42\uff0c\u5373\u8bf7\u6c42\u81ea\u5df1\u7684 IP \u5730\u5740\u7684 MAC \u5730\u5740\u3002
                  \n\u4e0e\u666e\u901a ARP \u8bf7\u6c42\u62a5\u6587\u7684\u533a\u522b\u5728\u4e8e\u62a5\u6587\u4e2d\u7684\u76ee\u6807 IP \u5730\u5740\u3002\u666e\u901a ARP \u62a5\u6587\u4e2d\u7684\u76ee\u6807 IP \u5730\u5740\u662f\u5176\u5b83\u4e3b\u673a\u7684 IP \u5730\u5740;\u800c\u514d\u8d39 ARP \u7684\u8bf7\u6c42\u62a5\u6587\u4e2d\uff0c\u76ee\u6807 IP\u5730\u5740\u662f\u81ea\u5df1\u7684 IP \u5730\u5740<\/strong>\u3002<\/p>\n

                  \u514d\u8d39ARP\u7684\u4f5c\u7528<\/h5>\n

                  \u8d77\u5230\u4e00\u4e2a\u5ba3\u544a\u4f5c\u7528<\/strong>\u3002\u5b83\u4ee5\u5e7f\u64ad\u7684\u5f62\u5f0f\u5c06\u6570\u636e\u5305\u53d1\u9001\u51fa\u53bb\uff0c\u4e0d\u9700\u8981\u5f97\u5230\u56de\u5e94\uff0c\u53ea\u4e3a\u4e86\u544a\u8bc9\u5176\u5b83\u4e3b\u673a\u81ea\u5df1\u7684 IP \u5730\u5740\u548c MAC \u5730\u5740\u3002<\/p>\n

                  \u53ef\u7528\u4e8e\u68c0\u6d4b IP \u5730\u5740\u51b2\u7a81<\/strong>\u3002\u5f53\u4e00\u53f0\u4e3b\u673a\u53d1\u9001\u4e86\u514d\u8d39 ARP \u8bf7\u6c42\u62a5\u6587\u540e\uff0c\u5982\u679c\u6536\u5230\u4e86 ARP \u54cd\u5e94\u62a5\u6587\uff0c\u5219\u8bf4\u660e\u7f51\u7edc\u5185\u5df2\u7ecf\u5b58\u5728\u4f7f\u7528\u8be5 IP \u5730\u5740\u7684\u4e3b\u673a\u3002<\/p>\n

                  \u53ef\u7528\u4e8e\u66f4\u65b0\u5176\u5b83\u4e3b\u673a\u7684 ARP \u7f13\u5b58\u8868<\/strong>\u3002\u5982\u679c\u8be5\u4e3b\u673a\u66f4\u6362\u4e86\u7f51\u5361\uff0c\u800c\u5176\u5b83\u4e3b\u673a\u7684ARP \u7f13\u5b58\u8868\u4ecd\u7136\u4fdd\u7559\u7740\u539f\u6765\u7684 MAC \u5730\u5740\u3002\u8fd9\u65f6\uff0c\u901a\u8fc7\u514d\u8d39\u7684 ARP \u6570\u636e\u5305\uff0c\u66f4\u65b0\u5176\u5b83\u4e3b\u673a\u7684 ARP \u7f13\u5b58\u8868\u3002<\/p>\n

                  ICMP<\/h3>\n

                  IP \u63d0\u4f9b\u5c3d\u529b\u800c\u4e3a\u7684\u670d\u52a1\uff0c\u6307\u4e3a\u4e86\u628a\u6570\u636e\u5305\u53d1\u9001\u5230\u76ee\u7684\u5730\u5740\u5c3d\u6700\u5927\u52aa\u529b<\/strong>\u3002\u5b83\u5e76\u4e0d\u505a\u5bf9\u7aef\u76ee\u7684\u4e3b\u673a\u662f\u5426\u6536\u5230\u6570\u636e\u5305\u7684\u9a8c\u8bc1\uff0c\u65e0\u6cd5\u4fdd\u8bc1\u670d\u52a1\u8d28\u91cf<\/strong>\u3002<\/p>\n

                  ICMP (\u4e92\u8054\u7f51\u63a7\u5236\u6d88\u606f\u534f\u8bae) \u662f\u63d0\u4f9b\u8fd9\u7c7b\u529f\u80fd\u7684\u4e00\u79cd\u534f\u8bae<\/strong>\u3002ICMP \u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff0c\u786e\u8ba4 IP \u5305\u662f\u5426\u6210\u529f\u9001\u8fbe\u76ee\u7684\u5730\u5740<\/strong>\uff0c\u901a\u77e5\u53d1\u9001\u8fc7\u7a0b\u4e2d IP \u5305\u88ab\u4e22\u5f03\u7684\u539f\u56e0<\/strong>\u3002
                  \nICMP \u62a5\u6587\u50cf TCP\/UDP \u4e00\u6837\u901a\u8fc7 IP \u8fdb\u884c\u4f20\u8f93\uff0c\u4f46\u662f ICMP \u7684\u529f\u80fd\u4e0d\u662f\u4f20\u8f93\u5c42\u7684\u8865\u5145\uff0c\u5e94\u8be5\u628a\u5b83\u5f53\u505a\u7f51\u7edc\u5c42\u534f\u8bae<\/strong>\u3002<\/p>\n

                  ICMP\u5934\u90e8\u5c01\u88c5\u5b57\u6bb5\u5982\u4e0b<\/p>\n

                  \"image-20230908092529447\"<\/div><\/p>\n

                  \u901a\u8fc7\u7c7b\u578b\u5b57\u6bb5\u548c\u7f16\u7801\u5b57\u6bb5\u7684\u53d6\u503c\u5224\u65ad\u8fd9\u4e2a ICMP \u6d88\u606f\u7684\u7c7b\u578b\u3002\u5e38\u89c1\u7684 ICMP\u6d88\u606f\u6240\u5bf9\u5e94\u7684\u7c7b\u578b\u548c\u7f16\u7801\u503c\u5982\u4e0b\u56fe\u3002<\/p>\n

                  \"image-20230908092602926\"<\/div><\/p>\n

                  \u4ece\u529f\u80fd\u4e0a\uff0cICMP \u7684\u6d88\u606f\u5206\u4e3a\u4e24\u7c7b: \u4e00\u7c7b\u662f\u901a\u77e5\u51fa\u9519\u539f\u56e0\u7684\u9519\u8bef\u6d88\u606f\uff0c\u53e6\u4e00\u7c7b\u662f\u7528\u4e8e\u8bca\u65ad\u7684\u67e5\u8be2\u6d88\u606f\u3002<\/p>\n

                  \"image-20230908092703828\"<\/div><\/p>\n
                  ping<\/h5>\n

                  \u6211\u4eec\u5e38\u7528\u7684 ping \u5de5\u5177\u5c31\u662f\u901a\u8fc7 ICMP \u6d88\u606f\u6d4b\u8bd5\u7f51\u7edc\u5c42\u8fde\u901a\u6027\u7684\u3002\u6e90\u4e3b\u673a\u53d1\u51faEcho request \u6d88\u606f\uff0c\u76ee\u7684\u4e3b\u673a\u56de\u5e94 Echo reply \u6d88\u606f\uff0c\u5219\u4e24\u53f0\u4e3b\u673a\u95f4\u7684\u7f51\u7edc\u5c42\u901a\u4fe1\u6b63\u5e38\u3002\u4e5f\u53ef\u4ee5\u901a\u8fc7 ping \u547d\u4ee4\u6765\u5224\u65ad\u76ee\u6807\u4e3b\u673a\u662f\u5426\u542f\u7528\u3002<\/p>\n

                  \"image-20230908092924885\"<\/div><\/p>\n

                  \u4e00\u4e9b\u540d\u8bcd\u8865\u5145\u89e3\u91ca<\/h3>\n

                  IPv4\u5934\u90e8<\/h4>\n

                  IP \u63d0\u4f9b\u6700\u7b80\u5355\u7684\u670d\u52a1:<\/h5>\n

                  \u5b9e\u73b0\u4ece\u6e90\u5230\u76ee\u7684\u7684\u6570\u636e\u8f6c\u53d1\u3002\u4e0d\u4f1a\u5728\u4f20\u8f93\u6570\u636e\u524d\u5148\u4e0e\u63a5\u6536\u65b9\u5efa\u7acb\u8fde\u63a5<\/strong>\uff0c\u4e5f\u4e0d\u4fdd\u8bc1\u4f20\u8f93\u7684\u53ef\u9760\u6027<\/strong>\uff0c\u5b83\u53ea\u63d0\u4f9b\u5c3d\u529b\u800c\u4e3a<\/strong>\u7684\u670d\u52a1\u3002
                  \nIP \u901a\u4fe1\u65f6\u4f20\u8f93\u7684\u662f IP \u62a5\u6587\uff0c IP \u62a5\u6587\u7531 IP \u5934\u90e8\u548c\u6570\u636e\u4e24\u90e8\u5206\u7ec4\u6210\u3002 IP \u5934\u90e8\u5305\u542b\u63a7\u5236\u62a5\u6587\u8f6c\u53d1\u7684\u5fc5\u8981\u4fe1\u606f\u3002<\/p>\n

                  \"image-20230908093113718\"<\/div><\/p>\n
                  \u7248\u672c\uff08Version\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 4 \u6bd4\u7279\uff0c\u8868\u793a IP \u7684\u7248\u672c\u53f7\u3002IPv4 \u7684\u7248\u672c\u53f7\u662f 4 \uff0c\u6240\u4ee5\u8fd9\u4e2a\u5b57\u6bb5\u7684\u503c\u4e5f\u662f 4 \u3002\u5e38\u89c1\u7684\u7248\u672c\u53f7\u6709 IPv4 \u548c IPv6\u3002<\/p>\n

                  \u5934\u90e8\u957f\u5ea6\uff08IHL \uff1aInternet Header Length \uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 4 \u6bd4\u7279\uff0c\u8868\u793a IP \u5934\u90e8\u5927\u5c0f\uff0c\u5355\u4f4d\u662f 4 \u5b57\u8282 ( 32 \u6bd4\u7279)\u3002\u6ca1\u6709\u53ef\u9009\u9879\u7684 IP \u5305\uff0c\u5934\u90e8\u957f\u5ea6\u4e3a 5 \uff0c\u5373 20 \u5b57\u8282 ( 4 x 5 = 20 )\u3002<\/p>\n

                  \u533a\u5206\u670d\u52a1\uff08TOS \uff1aType Of Service\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 8 \u6bd4\u7279\uff0c\u7528\u6765\u8bf4\u660e\u6570\u636e\u662f\u8981\u52a0\u901f\u4f20\u8f93\u8fd8\u662f\u7cbe\u786e\u4f20\u8f93\uff0c\u4ee5\u53ca\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u662f\u5426\u9047\u5230\u4e86\u62e5\u585e\u3002<\/p>\n

                  \u603b\u957f\u5ea6\uff08Total Length\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 16 \u6bd4\u7279\uff0c\u8868\u793a IP \u5934\u90e8\u548c\u6570\u636e\u52a0\u8d77\u6765\u7684\u603b\u5b57\u8282\u6570\u3002 IP \u5305\u7684\u6700\u5927\u957f\u5ea6\u4e3a 65535 \u5b57\u8282\u3002<\/p>\n

                  \u6807\u8bc6\uff08ID\uff1aidentification\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 16 \u6bd4\u7279\uff0c\u7528\u4e8e\u5206\u7247\u91cd\u7ec4\u3002\u540c\u4e00\u4e2a\u5206\u7247\u7684\u6807\u8bc6\u503c\u76f8\u540c\uff0c\u4e0d\u540c\u5206\u7247\u7684\u6807\u8bc6\u503c\u4e0d\u540c\u3002\u901a\u5e38\uff0c\u6bcf\u53d1\u9001\u4e00\u4e2a IP \u5305\uff0c\u5b83\u7684\u503c\u4e5f\u9010\u6e10\u9012\u589e\u3002\u53e6\u5916\uff0c\u5373\u4f7f ID\u76f8\u540c\uff0c\u5982\u679c\u76ee\u6807\u5730\u5740\u3001\u6e90\u5730\u5740\u6216\u534f\u8bae\u4e0d\u540c\u7684\u8bdd\uff0c\u4e5f\u4f1a\u88ab\u8ba4\u4e3a\u662f\u4e0d\u540c\u7684\u5206\u7247\u3002<\/p>\n

                  \u6807\u5fd7\uff08Flags\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 3 \u6bd4\u7279\uff0c\u8868\u793a\u5206\u7247\u4fe1\u606f\u3002\u6bcf\u6bd4\u7279\u7684\u5177\u4f53\u542b\u4e49\u5982\u4e0b\u8868\u3002<\/p>\n\n\n\n\n\n\n\n
                  \u6bd4\u7279\u4f4d<\/th>\n\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n
                  0<\/td>\n\u672a\u4f7f\u7528\uff0c\u73b0\u5728\u5fc5\u987b\u662f0<\/td>\n<\/tr>\n
                  1<\/td>\n\u8868\u793a\u662f\u5426\u8fdb\u884c\u5206\u7247\uff0c0-\u53ef\u4ee5\uff0c1-\u4e0d\u53ef\u4ee5<\/td>\n<\/tr>\n
                  2<\/td>\n\u88ab\u5206\u7247\u65f6\u8868\u793a\u662f\u5426\u4e3a\u6700\u540e\u4e00\u4e2a\u5305 0-\u6700\u540e\u4e00\u4e2a\u5206\u7247\u7684\u5305 1-\u5206\u7247\u4e2d\u6bb5\u7684\u5305<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                  \u5206\u7247\u504f\u79fb\uff08FO\uff1a Fragment Offset\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 13 \u6bd4\u7279\uff0c\u8868\u793a\u5206\u7247\u5728\u6574\u4e2a\u6570\u636e\u5305\u4e2d\u7684\u4f4d\u7f6e\u3002\u4f5c\u7528\u662f\u544a\u8bc9\u91cd\u7ec4\u5206\u7247\u7684\u8bbe\u5907\uff0c\u5e94\u8be5\u6309\u7167\u4ec0\u4e48\u6837\u7684\u987a\u5e8f\u91cd\u7ec4\u6570\u636e\u5305\u3002<\/p>\n

                  \u751f\u5b58\u65f6\u95f4\uff08TTL\uff1a Time To Live\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 8 \u6bd4\u7279\uff0c\u8868\u793a\u6570\u636e\u5305\u53ef\u4ee5\u7ecf\u8fc7\u7684\u4e2d\u8f6c\u8def\u7531\u5668\u6570\u91cf\u3002\u6bcf\u7ecf\u8fc7\u4e00\u4e2a\u8def\u7531\u5668\uff0c TTL \u4f1a\u51cf\u5c11 1 \uff0c\u76f4\u5230\u53d8\u6210 0 \u5219\u4e22\u5f03\u6539\u5305\uff0c\u907f\u514d\u6570\u636e\u5305\u5728\u7f51\u7edc\u4e2d\u65e0\u9650\u4f20\u9012\u3002<\/p>\n

                  \u534f\u8bae\uff08Protocol\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 8 \u6bd4\u7279\uff0c\u8868\u793a IP \u4e0a\u4e00\u5c42\u6240\u4f7f\u7528\u7684\u534f\u8bae\u3002\u5e38\u89c1\u7684 IP \u4e0a\u5c42\u534f\u8bae\u6709TCP \u548c UDP\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                  \u5206\u914d\u7f16\u53f7<\/th>\n\u534f\u8bae<\/th>\n<\/tr>\n<\/thead>\n
                  1<\/td>\nICMP<\/td>\n<\/tr>\n
                  2<\/td>\nIGMP<\/td>\n<\/tr>\n
                  4<\/td>\nIP<\/td>\n<\/tr>\n
                  6<\/td>\nTCP<\/td>\n<\/tr>\n
                  17<\/td>\nUDP<\/td>\n<\/tr>\n
                  41<\/td>\nIPv6<\/td>\n<\/tr>\n
                  50<\/td>\nESP<\/td>\n<\/tr>\n
                  51<\/td>\nAH<\/td>\n<\/tr>\n
                  88<\/td>\nEIGRP<\/td>\n<\/tr>\n
                  89<\/td>\nOSPF<\/td>\n<\/tr>\n
                  112<\/td>\nVRRP<\/td>\n<\/tr>\n
                  115<\/td>\nL2TP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                  \u5934\u90e8\u6821\u9a8c\u548c\uff08Header Checksum\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a 16 \u6bd4\u7279\uff0c\u7528\u6765\u6821\u9a8c\u6570\u636e\u5305\u7684\u5934\u90e8\u662f\u5426\u88ab\u7834\u574f\u3002\u8bbe\u5907\u4f1a\u4e22\u5f03\u6821\u9a8c\u5931\u8d25\u7684\u6570\u636e\u5305\u3002 <\/p>\n

                  IPv6 \u4ee5\u53d6\u6d88\u5934\u90e8\u6821\u9a8c\u548c\u5b57\u6bb5\uff0c\u901a\u8fc7\u4e0a\u5c42\u7684 TCP \u6216 UDP \u6821\u9a8c\u534f\u8bae\u662f\u5426\u6b63\u786e\u3002<\/p>\n

                  \u6e90\u5730\u5740\uff08Source Address\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a32\u6bd4\u7279\uff084\u5b57\u8282\uff09\uff0c\u8868\u793a\u53d1\u9001\u7aefIP\u5730\u5740\u3002<\/p>\n

                  \u76ee\u7684\u5730\u5740\uff08Destination Address\uff09<\/h5>\n

                  \u5b57\u6bb5\u957f\u5ea6\u4e3a32\u6bd4\u7279\uff084\u5b57\u8282\uff09\uff0c\u8868\u793a\u63a5\u6536\u7aefIP\u5730\u5740\u3002<\/p>\n

                  \u53ef\u9009\u9879\uff08Options\uff09<\/h5>\n

                  \u5f88\u5c11\u4f7f\u7528\uff0c\u5728IPv6\u4e2d\u5df2\u7ecf\u53d6\u6d88\u3002<\/p>\n

                  \u586b\u5145\uff08Padding\uff09<\/h5>\n

                  \u5728\u6709\u53ef\u9009\u9879\u7684\u60c5\u51b5\u4e0b\uff0c \u5934\u90e8\u957f\u5ea6\u4e0d\u662f 32 \u6bd4\u7279\u7684\u6574\u6570\u500d\u65f6\uff0c\u901a\u8fc7\u5411\u5b57\u6bb5\u586b\u51450\uff0c\u8c03\u6574\u4e3a 32 \u6bd4\u7279\u7684\u6574\u6570\u500d\u3002<\/p>\n

                  \u6570\u636e\uff08Data\uff09<\/h5>\n

                  IP\u6570\u636e\u5b57\u6bb5\uff0c\u7528\u4e8e\u5b58\u653e\u6570\u636e\u3002\u628aIP\u4e0a\u4e00\u5c42\u534f\u8bae\u7684\u5934\u90e8\u4e5f\u4f5c\u4e3a\u6570\u636e\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

                  \u6bd4\u7279<\/h4>\n

                  \u82f1\u6587\u540dbit\uff0c\u4e5f\u53eb\u4f4d\u3002\u4e8c\u8fdb\u5236\u4e2d\u6700\u5c0f\u5355\u4f4d\uff0c\u4e00\u4e2a\u6bd4\u7279\u7684\u503c\u8981\u4e48\u662f0\u8981\u4e48\u662f1\u3002<\/p>\n

                  \u5b57\u8282<\/h4>\n

                  \u82f1\u6587\u540dByte\uff0c1 Byte=8 bit<\/p>\n

                  \u56db\u3001\u8def\u7531\u534f\u8bae<\/h2>\n

                  \u8def\u7531\u7684\u6982\u5ff5<\/h3>\n

                  \u5728 TCP\/IP \u901a\u4fe1\u4e2d\uff0c\u7f51\u7edc\u5c42\u7684\u4f5c\u7528\u662f\u5b9e\u73b0\u7ec8\u7aef\u7684\u70b9\u5bf9\u70b9\u901a\u4fe1\u3002IP \u534f\u8bae\u901a\u8fc7 IP\u5730\u5740\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9\u76ee\u7684\u4e3b\u673a\uff0c\u80fd\u591f\u8ba9\u4e92\u8054\u7f51\u4e0a\u4efb\u4f55\u4e24\u53f0\u4e3b\u673a\u8fdb\u884c\u901a\u4fe1\u3002IP \u5730\u5740\u53ef\u4ee5\u8bc6\u522b\u4e3b\u673a\u548c\u8def\u7531\u5668\uff0c\u8def\u7531\u5668\u53ef\u4ee5\u628a\u5168\u4e16\u754c\u7684\u7f51\u7edc\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n

                  \u4ec0\u4e48\u662f\u8def\u7531\u5668<\/h4>\n

                  \u8def\u7531\u5668\u53ef\u4ee5\u8fde\u63a5\u591a\u4e2a\u7f51\u7edc<\/strong>\u3002\u5b83\u6709\u591a\u4e2a\u7aef\u53e3<\/strong>\uff0c\u5206\u522b\u8fde\u63a5\u4e0d\u540c\u7684\u7f51\u7edc\u533a\u57df\u3002\u901a\u8fc7\u8bc6\u522b\u76ee\u7684 IP \u5730\u5740\u7684\u7f51\u7edc\u53f7<\/strong>\uff0c\u518d\u6839\u636e\u8def\u7531\u8868<\/strong>\u8fdb\u884c\u6570\u636e\u8f6c\u53d1<\/strong>\u3002\u8def\u7531\u5668\u4f1a\u7ef4\u62a4\u4e00\u5f20\u8def\u7531\u8868<\/strong>\uff0c\u901a\u8fc7\u8def\u7531\u8868\u7684\u4fe1\u606f<\/strong>\uff0c\u8def\u7531\u5668\u624d\u80fd\u6b63\u786e\u7684\u8f6c\u53d1 IP \u62a5\u6587<\/strong>\u3002<\/p>\n

                  \"image-20230911082929304\"<\/div><\/p>\n

                  \u4ec0\u4e48\u662f\u8def\u7531\u8868<\/h4>\n

                  \u4e3a\u4e86\u5c06\u6570\u636e\u5305\u53d1\u7ed9\u76ee\u7684\u8282\u70b9\uff0c\u6240\u6709\u8282\u70b9\u90fd\u7ef4\u62a4\u7740\u4e00\u5f20\u8def\u7531\u8868<\/strong>\u3002\u8def\u7531\u8868\u662f\u8def\u7531\u5668\u901a\u8fc7\u5404\u79cd\u9014\u5f84\u83b7\u5f97\u7684\u8def\u7531\u6761\u76ee<\/strong>\uff0c\u6bcf\u4e00\u4e2a\u8def\u7531\u6761\u76ee\u5305\u542b\u76ee\u7684\u7f51\u6bb5\u5730\u5740\u3001\u5b50\u7f51\u63a9\u7801\u3001\u8def\u7531\u534f\u8bae\u3001\u51fa\u63a5\u53e3\u3001\u4e0b\u4e00\u8df3 IP \u5730\u5740\u3001\u8def\u7531\u4f18\u5148\u7ea7\u548c\u5ea6\u91cf\u503c<\/strong>\u7b49\u4fe1\u606f\u3002\u8def\u7531\u8868\u8bb0\u5f55IP \u5305\u5728\u4e0b\u4e00\u8df3\u5e94\u8be5\u53d1\u7ed9\u54ea\u4e2a\u8def\u7531\u5668<\/strong>\u3002 IP \u5305\u6839\u636e\u8def\u7531\u8868\u5728\u5404\u4e2a\u6570\u636e\u94fe\u8def\u4e0a\u4f20\u8f93<\/strong>\u3002<\/p>\n

                  \u8def\u7531\u8868\u6765\u6e90<\/h4>\n

                  \u8def\u7531\u8868\u7684\u6765\u6e90\u5206\u4e3a\u4e09\u7c7b\uff0c\u76f4\u8fde\u8def\u7531\uff0c\u9759\u6001\u8def\u7531\u548c\u52a8\u6001\u8def\u7531<\/strong>\u3002<\/p>\n

                  \u76f4\u8fde\u8def\u7531<\/strong>\uff1a\u8def\u7531\u5668\u76f4\u63a5\u8fde\u63a5\u7684\u8def\u7531\u6761\u76ee\uff0c\u53ea\u8981\u8def\u7531\u5668\u63a5\u53e3\u914d\u7f6e\u4e86 IP \u5730\u5740\uff0c\u63a5\u53e3\u72b6\u6001\u6b63\u5e38\uff0c\u5c31\u4f1a\u81ea\u52a8\u751f\u6210\u5bf9\u5e94\u7684\u76f4\u8fde\u8def\u7531\u3002<\/p>\n

                  \u9759\u6001\u8def\u7531\uff1a<\/strong>\u901a\u8fc7\u547d\u4ee4\u624b\u52a8\u6dfb\u52a0\u7684\u8def\u7531\u6761\u76ee\u5c31\u662f\u9759\u6001\u8def\u7531\u3002<\/p>\n

                  \u52a8\u6001\u8def\u7531\uff1a<\/strong>\u901a\u8fc7\u8def\u7531\u534f\u8bae\u4ece\u76f8\u90bb\u8def\u7531\u5668\u52a8\u6001\u5b66\u4e60\u5230\u7684\u8def\u7531\u6761\u76ee\u3002<\/p>\n

                  \u8def\u7531\u4f18\u5148\u7ea7\uff1a<\/strong>\u4e0d\u540c\u6765\u6e90\u7684\u8def\u7531\u6709\u4e0d\u540c\u7684\u4f18\u5148\u7ea7<\/strong>\uff0c\u4f18\u5148\u7ea7\u7684\u503c\u8d8a\u5c0f\uff0c\u5219\u8def\u7531\u7684\u4f18\u5148\u7ea7\u5c31\u8d8a\u9ad8\u3002\u5f53\u5b58\u5728\u591a\u6761\u76ee\u7684\u7f51\u6bb5\u76f8\u540c\uff0c\u4f46\u6765\u6e90\u4e0d\u540c\u7684\u8def\u7531\u65f6\uff0c\u5177\u6709\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u8def\u7531\u6210\u4e3a\u6700\u4f18\u8def\u7531<\/strong>\uff0c\u5c06\u88ab\u52a0\u5165\u5230\u8def\u7531\u8868<\/strong>\u4e2d\uff0c\u800c\u5176\u5b83\u8def\u7531\u5219\u5904\u4e8e\u672a\u6fc0\u6d3b\u72b6\u6001\uff0c\u4e0d\u663e\u793a\u5728\u8def\u7531\u8868\u4e2d\u3002<\/p>\n

                  \u8def\u7531\u534f\u8bae\u7684\u9ed8\u8ba4\u4f18\u5148\u7ea7\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n
                  \u8def\u7531\u6765\u6e90<\/th>\n\u4f18\u5148\u7ea7<\/th>\n<\/tr>\n<\/thead>\n
                  \u76f4\u8fde\u8def\u7531<\/td>\n0<\/td>\n<\/tr>\n
                  OSPF<\/td>\n10<\/td>\n<\/tr>\n
                  \u9759\u6001\u8def\u7531<\/td>\n60<\/td>\n<\/tr>\n
                  RIP<\/td>\n100<\/td>\n<\/tr>\n
                  BGP<\/td>\n255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u8def\u7531\u73af\u8def<\/h4>\n

                  \u6570\u636e\u8f6c\u53d1\u5f62\u6210\u6b7b\u5faa\u73af\uff0c\u4e0d\u80fd\u6b63\u786e\u5230\u8fbe\u76ee\u7684\u5730\u3002<\/p>\n

                  \"image-20230912142655636\"<\/div><\/p>\n

                  \u8def\u7531\u73af\u8def\u7684\u4e3b\u8981\u751f\u6210\u539f\u56e0\u662f\u914d\u7f6e\u9519\u8bef\u7684\u8def\u7531<\/strong>\u6216\u7f51\u7edc\u89c4\u5212\u9519\u8bef\u5bfc\u81f4<\/strong>\u3002\u6bd4\u5982\uff1a\u5728\u4e24\u53f0\u8def\u7531\u5668\u4e0a\u914d\u7f6e\u5230\u76f8\u540c\u76ee\u7684\u5730\u5740\u7684\u8def\u7531\u8868\u9879\uff0c\u4e0b\u4e00\u8df3\u4e92\u76f8\u6307\u5411\u5bf9\u65b9\uff0c\u5c31\u4f1a\u9020\u6210\u8def\u7531\u73af\u8def\u3002\u53e6\u5916\u67d0\u4e9b\u52a8\u6001\u8def\u7531\u534f\u8bae\u914d\u7f6e\u4e0d\u5f53\uff0c\u4e5f\u6709\u53ef\u80fd\u4ea7\u751f\u73af\u8def\u3002<\/p>\n

                  \u9ed1\u6d1e\u8def\u7531<\/h4>\n

                  \u4e00\u6761\u8def\u7531\u6761\u76ee\uff0c\u65e0\u8bba\u662f\u9759\u6001\u7684\u8fd8\u662f\u52a8\u6001\u7684\uff0c\u90fd\u9700\u8981\u5173\u8054\u5230\u4e00\u4e2a\u51fa\u63a5\u53e3\uff0c\u51fa\u63a5\u53e3\u6307\u7684\u662f\u8bbe\u5907\u8981\u5230\u8fbe\u76ee\u7684\u7f51\u7edc\u662f\u7684\u51fa\u7ad9\u63a5\u53e3\u3002\u8def\u7531\u7684\u51fa\u63a5\u53e3\u53ef\u4ee5\u662f\u8fd9\u4e2a\u8bbe\u5907\u7684\u7269\u7406\u63a5<\/p>\n

                  \u53e3\uff0c\u5982\u5343\u5146\u7f51\u53e3\uff0c\u4e5f\u53ef\u4ee5\u662f\u903b\u8f91\u63a5\u53e3\uff0c\u5982 VLAN \u63a5\u53e3\uff0c\u6216\u8005\u662f\u96a7\u9053\u63a5\u53e3\u7b49\u3002\u5176\u4e2d\u6709\u4e00\u79cd\u63a5\u53e3\u975e\u5e38\u7279\u6b8a\uff0c\u90a3\u5c31\u662fNull0\u63a5\u53e3\uff0c\u53ea\u6709\u4e00\u4e2a\u7f16\u53f7\uff0c\u90a3\u5c31\u662f 0 \u3002<\/p>\n

                  Null0 \u662f\u4e00\u4e2a\u7cfb\u7edf\u4fdd\u7559\u7684\u903b\u8f91\u63a5\u53e3\uff0c\u5f53\u7f51\u7edc\u8bbe\u5907\u5728\u8f6c\u53d1\u6570\u636e\u5305\u65f6\uff0c\u5982\u679c\u4f7f\u7528\u51fa\u63a5\u53e3 Null0 \u7684\u8def\u7531\uff0c\u90a3\u4e48\u6570\u636e\u5305\u5c06\u88ab\u4e22\u5f03\uff0c\u5c31\u50cf\u88ab\u6254\u8fdb\u4e86\u4e00\u4e2a\u9ed1\u6d1e\u91cc\uff0c\u56e0\u6b64\u51fa<\/p>\n

                  \u63a5\u53e3\u4e3aNull0\u7684\u8def\u7531\u6761\u76ee\u53c8\u88ab\u79f0\u4e3a\u9ed1\u6d1e\u8def\u7531<\/strong>\u3002<\/p>\n

                  \"image-20230912142938714\"<\/div><\/p>\n

                  \u9ed1\u6d1e\u8def\u7531\u662f\u4e00\u79cd\u975e\u5e38\u6709\u7528\u7684\u8def\u7531\u6761\u76ee\uff0c\u9002\u7528\u4e8e\u5982\u4e0b\u573a\u666f\uff1a<\/p>\n

                  \u5728\u7f51\u7edc\u4f7f\u7528\u4e2d\uff0c\u6309\u9700\u5c06\u6570\u636e\u5305\u6307\u5411\u9ed1\u6d1e\u8def\u7531\uff0c\u5b9e\u73b0\u6d41\u91cf\u8fc7\u6ee4\u3002<\/p>\n

                  \u5728\u5df2\u7ecf\u90e8\u7f72\u8def\u7531\u6c47\u603b\u7684\u7f51\u7edc\u4e2d\uff0c\u7528\u4e8e\u9632\u6b62\u6570\u636e\u8f6c\u53d1\u51fa\u73b0\u73af\u8def\u3002<\/p>\n

                  \u5728\u90e8\u7f72\u4e86 NAT \u7684\u7f51\u7edc\u4e2d\uff0c\u7528\u4e8e\u9632\u6b62\u6570\u636e\u8f6c\u53d1\u51fa\u73b0\u73af\u8def\u3002<\/p>\n

                  \u5728 BGP \u7f51\u7edc\u4e2d\uff0c\u7528\u4e8e\u53d1\u5e03\u7279\u5b9a\u7f51\u6bb5\u7684\u8def\u7531\u3002<\/p>\n

                  \u52a8\u6001\u8def\u7531\u534f\u8bae<\/h3>\n

                  \u9759\u6001\u8def\u7531<\/strong>\u662f\u624b\u52a8\u6dfb\u52a0\u5b8c\u6210\u7684\u3002<\/p>\n

                  \u5982\u679c\u6709 100 \u4e2a\u7f51\u6bb5\uff0c\u4e00\u4e2a\u8def\u7531\u5668\u5c31\u9700\u8981\u8bbe\u7f6e\u5c06\u8fd1100 \u6761\u8def\u7531\u4fe1\u606f\u3002\u7f51\u7edc\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u53ef\u907f\u514d\u7684\u51fa\u73b0\u7f51\u6bb5\u65b0\u589e\u3001\u5220\u9664\u3001\u4fee\u6539\u7b49\u60c5\u51b5\uff0c\u8fd9\u4e9b\u66f4\u65b0\u7684\u8def\u7531\u4fe1\u606f\u9700\u8981\u5728\u6240\u6709\u8def\u7531\u5668\u4e0a\u8fdb\u884c\u8bbe\u7f6e\u3002\u8fd8\u6709\u4e00\u4e2a\u4e0d\u53ef\u5ffd\u89c6\u7684\u95ee\u9898\uff0c\u4e00\u65e6\u67d0\u4e2a\u8def\u7531\u5668\u51fa\u73b0\u6545\u969c\uff0c\u6570\u636e\u4f20\u8f93\u65e0\u6cd5\u81ea\u52a8\u7ed5\u8fc7\u6545\u969c\u8282\u70b9\uff0c\u53ea\u80fd\u901a\u8fc7\u624b\u52a8\u8bbe\u7f6e\u624d\u80fd\u6062\u590d\u6b63\u5e38\u3002<\/p>\n

                  \"image-20230912143203816\"<\/div><\/p>\n

                  \u5982\u679c\u662f\u4f7f\u7528\u52a8\u6001\u8def\u7531<\/strong>\uff0c\u63d0\u524d\u8bbe\u7f6e\u597d\u8def\u7531\u534f\u8bae\uff0c\u8def\u7531\u5668\u4e4b\u95f4\u4f1a\u5b9a\u671f\u4ea4\u6362\u8def\u7531\u4fe1\u606f\uff0c\u8def\u7531\u5668\u4f1a\u77e5\u9053\u7f51\u7edc\u4e2d\u5176\u5b83\u7f51\u6bb5\u7684\u4fe1\u606f\uff0c\u52a8\u6001\u751f\u6210\u8def\u7531\u8868\u3002\u5982\u679c\u7f51\u7edc\u51fa\u73b0\u53d8\u5316\uff0c\u7f51\u6bb5\u9700\u8981\u589e\u5220\u6539\u65f6\uff0c\u53ea\u9700\u8981\u5728\u76f8\u5e94\u7684\u8def\u7531\u5668\u4e0a\u914d\u7f6e\u52a8\u6001\u8def\u7531\u5373\u53ef<\/strong>\u3002\u4e0d\u9700\u8981\u50cf\u9759\u6001\u8def\u7531\u90a3\u6837\uff0c\u5728\u6240\u6709\u8def\u7531\u5668\u4e0a\u8fdb\u884c\u4fee\u6539\u3002\u5bf9\u4e8e\u5927\u578b\u7f51\u7edc\uff0c\u8def\u7531\u5668\u4e2a\u6570\u8f83\u591a\u65f6\uff0c\u4e3b\u8981\u4f7f\u7528\u52a8\u6001\u8def\u7531\u534f\u8bae\u3002<\/p>\n

                  \u5373\u4f7f\u7f51\u7edc\u4e0a\u7684\u8282\u70b9\u51fa\u73b0\u6545\u969c\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u53ef\u7ed5\u884c\u7684\u5176\u5b83\u8def\u5f84\uff0c\u90a3\u4e48\u8def\u7531\u5668\u7684\u8def\u7531\u8868\u4f1a\u81ea\u52a8\u91cd\u65b0\u8bbe\u7f6e<\/strong>\uff0c\u6570\u636e\u5305\u4e5f\u4f1a\u81ea\u52a8\u9009\u62e9\u8fd9\u4e2a\u8def\u5f84\u3002<\/p>\n

                  \u91c7\u7528\u8def\u7531\u534f\u8bae\u540e\uff0c\u7f51\u7edc\u62d3\u6251\u7ed3\u679c\u53d8\u5316\u7684\u54cd\u5e94\u901f\u5ea6\u4f1a\u5927\u5927\u63d0\u5347<\/strong>\u3002\u65e0\u8bba\u7f51\u7edc\u6b63\u5e38\u7684\u589e\u5220\u6539\uff0c\u8fd8\u662f\u5f02\u5e38\u7684\u7f51\u7edc\u6545\u969c\uff0c\u76f8\u90bb\u7684\u8def\u7531\u5668\u90fd\u4f1a\u68c0\u6d4b\u5230\u53d8\u5316\uff0c\u4f1a\u628a\u62d3\u6251\u7684\u53d8\u5316\u901a\u77e5\u7f51\u7edc\u4e2d\u5176\u5b83\u7684\u8def\u7531\u5668\uff0c\u4f7f\u5b83\u4eec\u7684\u8def\u7531\u8868\u4ea7\u751f\u76f8\u5e94\u7684\u53d8\u5316\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u6bd4\u624b\u52a8\u5bf9\u8def\u7531\u8868\u7684\u4fee\u6539\u8981\u5feb\u5f88\u591a\uff0c\u4e5f\u51c6\u786e\u5f88\u591a\u3002<\/p>\n

                  \u5bf9\u4e8e\u5c11\u4e8e10\u4e2a\u8def\u7531\u5668\u7684\u5c0f\u578b\u7f51\u7edc\uff0c\u9759\u6001\u8def\u7531\u6216\u8bb8\u5df2\u7ecf\u80fd\u591f\u6ee1\u8db3\u9700\u6c42\uff0c\u4f46\u662f\u5728\u5927\u4e2d\u578b\u7f51\u7edc\u4e2d\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u52a8\u6001\u8def\u7531\u534f\u8bae\uff0c\u6216\u8005\u52a8\u6001\u8def\u7531\u4e0e\u9759\u6001\u8def\u7531\u534f\u8bae\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\u6765\u5efa\u8bbe\u8fd9\u4e2a\u7f51\u7edc\u3002<\/strong><\/p>\n

                  \u8def\u7531\u534f\u8bae\u57fa\u672c\u539f\u7406<\/h4>\n

                  \u8def\u7531\u5668\u4e4b\u95f4\u9700\u8981\u8fd0\u884c\u76f8\u540c\u7684\u8def\u7531\u534f\u8bae\uff0c\u624d\u80fd\u76f8\u4e92\u4ea4\u6362\u8def\u7531\u4fe1\u606f\u3002\u6bcf\u79cd\u8def\u7531\u534f\u8bae\u90fd\u6709\u81ea\u5df1\u7684\u8bed\u8a00\uff0c\u5373\u76f8\u5e94\u7684\u8def\u7531\u534f\u8bae\u62a5\u6587\u3002\u5982\u679c\u4e24\u53f0\u8def\u7531\u5668\u542f\u52a8\u4e86\u76f8\u540c\u7684\u8def\u7531\u534f\u8bae\uff0c\u90a3\u4e48\u5c31\u6709\u4e86\u76f8\u4e92\u901a\u4fe1\u7684\u57fa\u7840\u3002\u4e0d\u540c\u7684\u8def\u7531\u534f\u8bae\uff0c\u6709\u76f8\u540c\u7684\u76ee\u7684\uff0c\u5c31\u662f\u8ba1\u7b97\u548c\u7ef4\u62a4\u8def\u7531\u8868\u3002\u901a\u5e38\u5de5\u4f5c\u8fc7\u7a0b\u5305\u542b 4 \u4e2a\u9636\u6bb5\uff1a<\/p>\n

                  \u90bb\u5c45\u53d1\u73b0\u9636\u6bb5<\/strong>\uff1a\u8fd0\u884c\u4e86\u8def\u7531\u534f\u8bae\u540e\uff0c\u8def\u7531\u5668\u4f1a\u4e3b\u52a8\u628a\u81ea\u5df1\u7684\u7f51\u6bb5\u4fe1\u606f\u53d1\u9001\u7ed9\u76f8\u90bb\u7684\u8def\u7531\u5668\u3002\u65e2\u53ef\u4ee5\u4f7f\u7528\u5e7f\u64ad\u53d1\u9001\u8def\u7531\u534f\u8bae\u6d88\u606f\uff0c\u4e5f\u53ef\u4ee5\u5355\u64ad\u5c06\u8def\u7531\u534f\u8bae\u6d88\u606f\u53d1\u9001\u7ed9\u6307\u5b9a\u7684\u90bb\u5c45\u8def\u7531\u5668\u3002<\/p>\n

                  \u4ea4\u6362\u8def\u7531\u4fe1\u606f\u9636\u6bb5<\/strong>\uff1a\u53d1\u73b0\u90bb\u5c45\u540e\uff0c\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u5c06\u81ea\u5df1\u7684\u8def\u7531\u4fe1\u606f\u53d1\u9001\u7ed9\u76f8\u90bb\u7684\u8def\u7531\u5668\uff0c\u76f8\u90bb\u8def\u7531\u5668\u53c8\u53d1\u9001\u7ed9\u4e0b\u4e00\u4e2a\u76f8\u90bb\u7684\u8def\u7531\u5668\u3002\u7ecf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u4f1a\u6536\u5230\u7f51\u7edc\u4e2d\u6240\u6709\u7684\u8def\u7531\u4fe1\u606f\u3002<\/p>\n

                  \u8ba1\u7b97\u8def\u7531\u9636\u6bb5<\/strong>\uff1a\u6bcf\u4e00\u53f0\u8def\u7531\u5668\u90fd\u4f1a\u8fd0\u884c\u67d0\u79cd\u7b97\u6cd5\uff0c\u8ba1\u7b97\u51fa\u6700\u7ec8\u7684\u8def\u7531\u8868\u6765\u3002<\/p>\n

                  \u7ef4\u62a4\u8def\u7531\u9636\u6bb5<\/strong>\uff1a\u4e3a\u4e86\u611f\u77e5\u7a81\u7136\u53d1\u9001\u7684\u7f51\u7edc\u6545\u969c\uff0c\u6bd4\u5982\uff1a\u8bbe\u5907\u6545\u969c\u6216\u7ebf\u8def\u4e2d\u65ad\u7b49\uff0c\u8def\u7531\u534f\u8bae\u89c4\u5b9a\u76f8\u90bb\u4e24\u53f0\u8def\u7531\u5668\u4e4b\u95f4\uff0c\u5e94\u8be5\u5468\u671f\u6027\u53d1\u9001\u534f\u8bae\u62a5\u6587\u3002\u5982\u679c\u8def\u7531\u5668\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u6ca1\u6536\u5230\u90bb\u5c45\u53d1\u6765\u7684\u534f\u8bae\u62a5\u6587\uff0c\u5c31\u8ba4\u4e3a\u90bb\u5c45\u8def\u7531\u5668\u5931\u6548\u3002<\/p>\n

                  \"image-20230912143649554\"<\/div><\/p>\n

                  \u81ea\u6cbb\u7cfb\u7edf<\/h4>\n

                  \u968f\u7740 IP \u7f51\u7edc\u7684\u53d1\u5c55\uff0c\u7f51\u7edc\u89c4\u6a21\u5df2\u7ecf\u5f88\u5927\u4e86\uff0c\u65e0\u8bba\u54ea\u79cd\u8def\u7531\u534f\u8bae\u90fd\u4e0d\u80fd\u5b8c\u6210\u5168\u7f51\u7684\u8def\u7531\u8ba1\u7b97\uff0c\u56e0\u6b64\u7f51\u7edc\u5206\u6210\u4e86\u5f88\u591a\u4e2a\u81ea\u6cbb\u7cfb\u7edf<\/strong>\uff08 AS , Autonomous System<\/p>\n

                  \uff09\u6216\u8def\u7531\u9009\u62e9\u57df<\/strong> \uff08 Routing Domain \uff09\u3002\u81ea\u6cbb\u7cfb\u7edf\u53ef\u4ee5\u5236\u5b9a\u81ea\u5df1\u7684\u8def\u7531\u7b56\u7565\uff0c\u5e76\u7ba1\u7406\u81ea\u6cbb\u7cfb\u7edf\u5185\u8fdb\u884c\u5177\u4f53\u8def\u7531\u63a7\u5236\u7684\u8def\u7531\u5668\u96c6\u5408\u3002<\/p>\n

                  \u6bcf\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u81ea\u6cbb\u7cfb\u7edf\u7f16\u53f7<\/strong>\uff0c\u5b83\u7684\u57fa\u672c\u601d\u8def\u662f\u5e0c\u671b\u901a\u8fc7\u4e0d\u540c\u7684\u7f16\u53f7\u6765\u533a\u5206\u4e0d\u540c\u7684\u81ea\u6cbb\u7cfb\u7edf\u3002\u901a\u8fc7\u8def\u7531\u534f\u8bae\u548c\u81ea\u6cbb\u7cfb\u7edf\u7f16\u53f7\uff0c\u8def\u7531\u5668\u53ef\u4ee5\u786e\u5b9a\u8def\u7531\u8def\u5f84\u548c\u8def\u7531\u4fe1\u606f\u7684\u4ea4\u6362\u65b9\u5f0f\u3002\u67d0\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u7f3a\u4e4f\u8db3\u591f\u7684\u5b89\u5168\u673a\u5236\uff0c\u5c31\u53ef\u4ee5\u5229\u7528\u7f16\u53f7\u6539\u53d8\u8def\u5f84\u56de\u907f\u5b83\u3002<\/p>\n

                  \u81ea\u6cbb\u7cfb\u7edf\u7684\u7f16\u53f7\u8303\u56f4\u662f 1 ~ 65535 \uff0c\u5176\u4e2d 1 ~ 64511 \u662f\u6ce8\u518c\u7684\u56e0\u7279\u7f51\u7f16\u53f7\uff0c 64512 ~ 65535 \u662f\u4e13\u7528\u7f51\u7edc\u7f16\u53f7\u3002<\/p>\n

                  \"image-20230912143908319\"<\/div><\/p>\n

                  EGP\u548cIGP<\/h4>\n

                  \u81ea\u6cbb\u7cfb\u7edf\uff08\u8def\u7531\u9009\u62e9\u57df\uff09\u5185\u90e8\u52a8\u6001\u8def\u7531\u4f7f\u7528\u7684\u534f\u8bae\u662f\u57df\u5185\u8def\u7531\u534f\u8bae<\/strong>\uff0c\u5373 IGP<\/strong> \u3002\u800c\u81ea\u6cbb\u7cfb\u7edf\u4e4b\u95f4\u7684\u8def\u7531\u63a7\u5236\u4f7f\u7528\u7684\u662f\u57df\u95f4\u8def\u7531\u534f\u8bae<\/strong>\uff0c\u5373 EGP<\/strong> \u3002<\/p>\n

                  IGP \u548c EGP \u7684\u5173\u7cfb\uff0c\u8ddf IP \u5730\u5740\u7f51\u7edc\u53f7\u548c\u4e3b\u673a\u53f7\u7684\u5173\u7cfb\u7c7b\u4f3c\u3002\u6839\u636e IP \u5730\u5740\u7684\u7f51\u7edc\u53f7\u5728\u7f51\u7edc\u4e2d\u8fdb\u884c\u8def\u7531\u9009\u62e9\uff0c\u6839\u636e\u4e3b\u673a\u53f7\u5728\u7f51\u6bb5\u5185\u90e8\u8fdb\u884c\u4e3b\u673a\u8bc6\u522b\u4e00\u6837\u3002<\/p>\n

                  \u65e2\u53ef\u4ee5\u6839\u636e<\/strong> EGP<\/strong> \u5728\u533a\u57df\u7f51\u7edc\u4e4b\u95f4\u8fdb\u884c\u8def\u7531\u9009\u62e9<\/strong>\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e IGP \u5728\u533a\u57df\u7f51\u7edc\u5185\u90e8\u8fdb\u884c\u4e3b\u673a\u8bc6\u522b<\/strong>\u3002<\/p>\n

                  \u8def\u7531\u534f\u8bae\u88ab\u5206\u4e3a EGP \u548c IGP \u4e24\u4e2a\u5c42\u6b21\u3002<\/strong><\/p>\n

                  \u6ca1\u6709 EGP \u5c31\u4e0d\u53ef\u80fd\u6709\u4e16\u754c\u4e0a\u5404\u4e2a\u4e0d\u540c\u673a\u6784\u7f51\u7edc\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u6ca1\u6709 IGP \u673a\u6784\u5185\u90e8\u4e5f\u5c31\u4e0d\u53ef\u80fd\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

                  IGP \u662f\u6307\u5728\u540c\u4e00\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u5185\u4ea4\u6362\u8def\u7531\u4fe1\u606f\u7684\u8def\u7531\u534f\u8bae\u3002RIP \u3001RIP2 \u3001OSPF<\/strong> \u5c5e\u4e8e IGP<\/strong> \u3002IGP \u7684\u4e3b\u8981\u76ee\u7684\u662f\u53d1\u73b0\u548c\u8ba1\u7b97\u81ea\u6cbb\u7cfb\u7edf\u5185\u7684\u8def\u7531\u4fe1\u606f\u3002<\/p>\n

                  EGP \u4e0e IGP \u4e0d\u540c\uff0cEGP \u7528\u4e8e\u8fde\u63a5\u4e0d\u540c\u7684\u81ea\u6cbb\u7cfb\u7edf\uff0c\u5e76\u5728\u4e0d\u540c\u81ea\u6cbb\u7cfb\u7edf\u95f4\u4ea4\u6362\u8def\u7531\u4fe1\u606f\u3002BGP<\/strong> \u5c5e\u4e8e EGP<\/strong> \u3002<\/p>\n

                  EGP \u7684\u4e3b\u8981\u76ee\u7684\u662f\u4f7f\u7528\u8def\u7531\u7b56\u7565\u548c\u8def\u7531\u8fc7\u6ee4\u7b49\u624b\u6bb5\uff0c\u63a7\u5236\u8def\u7531\u4fe1\u606f\u5728\u81ea\u6cbb\u7cfb\u7edf\u95f4\u7684\u4f20\u64ad\u3002<\/p>\n

                  \u52a8\u6001\u8def\u7531\u534f\u8bae\u7c7b\u578b<\/h3>\n

                  \u6309\u7167\u8def\u7531\u7684\u7b97\u6cd5\u548c\u8def\u7531\u4fe1\u606f\u7684\u4ea4\u6362\u65b9\u5f0f\uff0c\u8def\u7531\u534f\u8bae\u53ef\u4ee5\u5206\u4e3a\u8ddd\u79bb\u77e2\u91cf<\/strong>\uff08Distance-Vector \uff0cD-V \uff09\u8def\u7531\u534f\u8bae\u548c\u94fe\u8def\u72b6\u6001<\/strong>\uff08 Link-State \uff09\u8def\u7531\u534f\u8bae\u3002<\/p>\n

                  \u5176\u4e2d\u5178\u578b\u7684\u8ddd\u79bb\u77e2\u91cf\u534f\u8bae\u662f RIP \uff0c\u5178\u578b\u7684\u94fe\u8def\u72b6\u6001\u534f\u8bae\u662f OSPF \u3002<\/strong><\/p>\n

                  \u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae<\/h4>\n

                  \u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae<\/strong>\u6307\u7684\u662f\u57fa\u4e8e\u8ddd\u79bb\u77e2\u91cf\u7684\u8def\u7531\u534f\u8bae\uff0cRIP \u662f\u6700\u5177\u4ee3\u8868\u6027\u7684\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\u3002\u8ddd\u79bb\u77e2\u91cf\u8fd9\u4e2a\u6982\u5ff5\u5305\u542b\u4e24\u4e2a\u5173\u952e\u7684\u4fe1\u606f\uff1a\u8ddd\u79bb<\/strong>\u548c\u65b9\u5411<\/strong>\uff0c\u5176\u4e2d\u8ddd\u79bb\u662f\u6307\u5230\u8fbe\u76ee\u7684\u7f51\u7edc\u7684\u5ea6\u91cf\u503c\uff08\u5373\u6240\u8981\u7ecf\u8fc7\u8def\u7531\u5668\u7684\u4e2a\u6570\uff09\uff0c\u800c\u65b9\u5411\u6307\u7684\u662f\u5230\u8fbe\u76ee\u7684\u7f51\u7edc\u7684\u4e0b\u4e00\u8df3\u8bbe\u5907\u3002<\/p>\n

                  \"image-20230912145705508\"<\/div><\/p>\n

                  \u6bcf\u4e00\u53f0\u8fd0\u884c\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u5668\u4f1a\u5468\u671f\u6027\u7684\u5c06\u81ea\u5df1\u7684\u8def\u7531\u8868\u901a\u544a\u51fa\u53bb\uff0c\u76f8\u90bb\u7684\u8def\u7531\u5668\u6536\u5230\u8def\u7531\u4fe1\u606f\u5e76\u66f4\u65b0\u81ea\u5df1\u7684\u8def\u7531\u8868\uff0c\u518d\u7ee7\u7eed\u5411\u5176\u5b83\u76f4\u8fde\u7684\u8def\u7531\u5668\u901a\u544a\u8def\u7531\u4fe1\u606f\uff0c\u6700\u7ec8\u7f51\u7edc\u4e2d\u7684\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u80fd\u77e5\u9053\u5404\u4e2a\u7f51\u6bb5\u7684\u8def\u7531\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u8def\u7531\u7684\u6cdb\u6d2a\u8fc7\u7a0b\u3002<\/p>\n

                  \"image-20230912145741776\"<\/div><\/p>\n

                  \u8def\u7531\u5668\u4e4b\u95f4\u4e92\u6362\u76ee\u7684\u7f51\u7edc\u7684\u65b9\u5411\u548c\u8ddd\u79bb\u7684\u4fe1\u606f\uff0c\u5e76\u4ee5\u8fd9\u4e9b\u4fe1\u606f\u66f4\u65b0\u8def\u7531\u8868\u3002\u8fd9\u79cd\u65b9\u6cd5\u5728\u5904\u7406\u4e0a\u6bd4\u8f83\u7b80\u5355\uff0c\u4e0d\u8fc7\u7531\u4e8e\u53ea\u6709\u8ddd\u79bb\u548c\u65b9\u5411\u7684\u4fe1\u606f\uff0c\u6240\u4ee5\u5f53\u7f51\u7edc\u6784\u9020\u53d8\u5f97\u590d\u6742\u65f6\uff0c\u5728\u83b7\u5f97\u7a33\u5b9a\u7684\u8def\u7531\u4fe1\u606f\u4e4b\u524d\u9700\u8981\u6d88\u8017\u4e00\u5b9a\u65f6\u95f4\uff08\u5373\u8def\u7531\u6536\u655b\u65f6\u95f4\u957f\uff09\uff0c\u4e5f\u6781\u6613\u53d1\u751f\u8def\u7531\u5faa\u73af\u7b49\u95ee\u9898\u3002<\/p>\n

                  \"image-20230912145814291\"<\/div><\/p>\n

                  \u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae<\/strong><\/h4>\n

                  \u8fd0\u884c\u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae<\/strong>\u7684\u8def\u7531\u5668\u4f1a\u4f7f\u7528\u4e00\u4e9b\u7279\u6b8a\u7684\u4fe1\u606f\u63cf\u8ff0\u7f51\u7edc\u7684\u62d3\u6251\u7ed3\u6784\u548cIP \u7f51\u6bb5\uff0c\u8fd9\u4e9b\u4fe1\u606f\u88ab\u79f0\u4e3a\u94fe\u8def\u72b6\u6001\u4fe1\u606f<\/strong>\uff08 LSA \uff09\uff0c\u6240\u6709\u8def\u7531\u5668\u90fd\u4f1a\u4ea7\u751f\u81ea\u5df1\u76f4\u8fde\u63a5\u53e3\u7684\u94fe\u8def\u72b6\u6001\u4fe1\u606f\u3002<\/p>\n

                  \"image-20230912150010525\"<\/div><\/p>\n

                  \u8def\u7531\u5668\u5c06\u7f51\u7edc\u4e2d\u6cdb\u6d2a\u7684\u94fe\u8def\u72b6\u6001\u4fe1\u606f\u641c\u96c6\u8d77\u6765\uff0c\u5b58\u5165\u4e00\u4e2a\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u4e2a\u6570\u636e\u5e93\u5c31\u662f LSDB<\/strong> \uff08\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\uff09\uff0cLSDB \u662f\u5bf9\u6574\u4e2a\u7f51\u7edc\u7684\u62d3\u6251\u7ed3\u6784\u53ca IP \u7f51\u6bb5\u7684\u63cf\u8ff0\uff0c\u8def\u7531\u5668\u62e5\u6709\u76f8\u540c\u7684 LSDB \u3002\u5bf9\u4e8e\u4efb\u4f55\u4e00\u53f0\u8def\u7531\u5668\uff0c\u7f51\u7edc\u62d3\u6251\u90fd\u5b8c\u5168\u4e00\u6837\u3002<\/p>\n

                  \"image-20230912150033627\"<\/div><\/p>\n

                  \u63a5\u4e0b\u6765\u6240\u6709\u7684\u8def\u7531\u5668\u90fd\u57fa\u4e8e LSDB \u4f7f\u7528\u6700\u77ed\u8def\u7531\u4f18\u5148\u7b97\u6cd5\u8fdb\u884c\u8ba1\u7b97\uff0c\u5f97\u5230\u4e00\u68f5\u5df2\u81ea\u5df1\u4e3a\u6839\u7684\u3001\u65e0\u73af\u8def\u7684\u6700\u77ed\u8def\u5f84\u6811<\/strong>\uff0c\u5e76\u5c06\u5f97\u5230\u7684\u8def\u7531\u52a0\u8f7d\u5230\u8def\u7531\u8868\u4e2d\u3002<\/p>\n

                  \u94fe\u8def\u72b6\u6001\u7b97\u6cd5\u4f7f\u7528\u589e\u91cf\u66f4\u65b0\u673a\u5236\uff0c\u53ea\u6709\u5f53\u94fe\u8def\u7684\u72b6\u6001\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u624d\u53d1\u9001\u8def\u7531\u66f4\u65b0\u4fe1\u606f\u3002<\/p>\n

                  \u76f8\u6bd4\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\uff0c\u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae\u5177\u6709\u66f4\u5927\u7684\u6269\u5c55\u6027\u548c\u66f4\u5feb\u7684\u6536\u655b\u901f\u5ea6\uff0c\u4f46\u662f\u5b83\u7684\u7b97\u6cd5\u6d88\u8017\u66f4\u591a\u7684\u5185\u5b58\u548c CPU \u5904\u7406\u80fd\u529b\u3002<\/p>\n

                  \u8def\u7531\u534f\u8bae\u7684\u6027\u80fd\u6307\u6807<\/h4>\n

                  \u534f\u8bae\u8ba1\u7b97\u7684\u6b63\u786e\u6027<\/strong>\uff1a\u662f\u6307\u8def\u7531\u534f\u8bae\u7684\u7b97\u6cd5\u4f1a\u4e0d\u4f1a\u4ea7\u751f\u9519\u8bef\u7684\u8def\u7531\u5bfc\u81f4\u7f51\u7edc\u73af\u8def\u3002\u4e0d\u540c\u7684\u8def\u7531\u534f\u8bae\u4f7f\u7528\u7684\u7b97\u6cd5\u4e0d\u540c\uff0c\u56e0\u6b64\u8def\u7531\u6b63\u786e\u6027\u4e5f\u4e0d\u76f8\u540c\u3002<\/p>\n

                  \u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae\uff08\u5982 OSPF \uff09\u5728\u7b97\u6cd5\u4e0a\u675c\u7edd\u4e86\u4ea7\u751f\u8def\u7531\u73af\u8def\u7684\u53ef\u80fd\u6027\uff0c\u6bd4\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\u66f4\u4f18\u3002<\/strong><\/p>\n

                  \u8def\u7531\u6536\u655b\u901f\u5ea6<\/strong>\uff1a\u8def\u7531\u6536\u655b\u662f\u6307\u5168\u7f51\u8def\u7531\u5668\u7684\u8def\u7531\u8868\u8fbe\u5230\u4e00\u81f4\u72b6\u6001\u3002\u6536\u655b\u901f\u5ea6\u5feb\uff0c\u610f\u5473\u7740\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u8def\u7531\u5668\u80fd\u591f\u66f4\u5feb\u7684\u611f\u77e5\uff0c\u5e76\u53ca\u65f6\u66f4\u65b0\u76f8\u5e94\u7684\u8def\u7531\u4fe1\u606f\u3002<\/p>\n

                  OSPF \u3001BGP \u7b49\u534f\u8bae\u7684\u6536\u655b\u901f\u5ea6\u5feb\u4e8e RIP \u3002<\/strong><\/p>\n

                  \u534f\u8bae\u6240\u5360\u7684\u7cfb\u7edf\u5f00\u9500<\/strong>\uff1a\u8def\u7531\u5668\u5728\u8fd0\u884c\u8def\u7531\u534f\u8bae\u65f6\uff0c\u9700\u8981\u6d88\u8017\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u6bd4\u5982\uff1aCPU \u3001\u5185\u5b58\u7b49\u3002\u5de5\u4f5c\u539f\u7406\u7684\u4e0d\u540c\uff0c\u5404\u4e2a\u8def\u7531\u534f\u8bae\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u9700\u6c42\u4e5f\u4e0d\u540c\u3002<\/p>\n

                  OSPF \u8def\u7531\u6280\u672f\u7684\u7cfb\u7edf\u5f00\u9500\u8981\u5927\u4e8e RIP \u534f\u8bae\u3002<\/strong><\/p>\n

                  \u534f\u8bae\u81ea\u8eab\u7684\u5b89\u5168\u6027<\/strong>\uff1a\u662f\u6307\u534f\u8bae\u8bbe\u8ba1\u65f6\uff0c\u6709\u6ca1\u6709\u8003\u8651\u9632\u6b62\u7f51\u7edc\u653b\u51fb\u3002<\/p>\n

                  OSPF \u3001RIPv2 \u6709\u76f8\u5e94\u7684\u9632\u6b62\u653b\u51fb\u7684\u8ba4\u8bc1\u65b9\u6cd5\uff0c\u800c RIPv1 \u6ca1\u6709\u3002<\/strong><\/p>\n

                  \u534f\u8bae\u9002\u7528\u7f51\u7edc\u89c4\u6a21<\/strong>\uff1a\u4e0d\u540c\u8def\u7531\u534f\u8bae\u6240\u9002\u7528\u7684\u7f51\u7edc\u89c4\u6a21\u3001\u62d3\u6251\u7ed3\u6784\u4e0d\u540c\u3002<\/p>\n

                  RIP \u534f\u8bae\u6709 16 \u8df3\u7684\u9650\u5236\uff0c\u6240\u4ee5\u53ea\u80fd\u5e94\u7528\u5728\u8f83\u5c0f\u89c4\u6a21\u7684\u7f51\u7edc\u4e2d\uff1b<\/p>\n

                  \u800c OSPF \u53ef\u4ee5\u5e94\u7528\u5728\u51e0\u767e\u53f0\u8def\u7531\u5668\u7684\u5927\u89c4\u6a21\u7f51\u7edc\u4e2d\uff1b<\/p>\n

                  BGP \u80fd\u591f\u7ba1\u7406\u5168\u4e16\u754c\u6240\u6709\u7684\u8def\u7531\u5668\uff0c\u5176\u6240\u7ba1\u7406\u7684\u7f51\u7edc\u89c4\u6a21\u5927\u5c0f\u53ea\u53d7\u7cfb\u7edf\u8d44\u6e90\u7684\u9650\u5236\u3002<\/p>\n

                  \u4e3b\u8981\u8def\u7531\u534f\u8bae<\/h4>\n

                  \u5404\u79cd\u8def\u7531\u534f\u8bae\u90fd\u9700\u8981\u4f7f\u7528 IP \u6765\u8fdb\u884c\u62a5\u6587\u5c01\u88c5\uff0c\u4f46\u5176\u7ec6\u8282\u6709\u6240\u4e0d\u540c\u3002<\/p>\n

                  RIP<\/h5>\n

                  RIP<\/strong> \u534f\u8bae\u662f\u6700\u65e9\u7684\u8def\u7531\u534f\u8bae\uff0c\u662f\u4e3a\u5c0f\u578b\u7f51\u7edc\u4e2d\u63d0\u4f9b\u7b80\u5355\u6613\u7528\u7684\u52a8\u6001\u8def\u7531\u3002RIP\u534f\u8bae\u62a5\u6587\u91c7\u7528 UDP<\/strong> \u5c01\u88c5\uff0c\u7aef\u53e3\u53f7\u662f 520<\/strong> \u3002\u7531\u4e8e UDP \u662f\u4e0d\u53ef\u9760\u7684\u4f20\u8f93\u5c42\u534f\u8bae\uff0c\u6240\u4ee5 RIP \u534f\u8bae\u9700\u8981\u5468\u671f\u6027\u7684\u5e7f\u64ad\u534f\u8bae\u62a5\u6587\u6765\u786e\u4fdd\u90bb\u5c45\u6536\u5230\u8def\u7531\u4fe1\u606f\u3002<\/p>\n

                  OSPF<\/h5>\n

                  OSPF<\/strong> \u662f\u76ee\u524d\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u8def\u7531\u534f\u8bae\uff0c\u53ef\u4e3a\u5927\u4e2d\u578b\u7f51\u7edc\u63d0\u4f9b\u5206\u5c42\u7684\u3001\u53ef\u9760\u7684\u8def\u7531\u670d\u52a1\u3002OSPF \u76f4\u63a5\u91c7\u7528 IP<\/strong> \u8fdb\u884c\u5c01\u88c5\uff0c\u6240\u6709\u534f\u8bae\u62a5\u6587\u90fd\u7531 IP \u5c01\u88c5\u540e\u8fdb\u884c\u4f20\u8f93\uff0c\u534f\u8bae\u53f7\u662f 89<\/strong> \u3002<\/p>\n

                  IP \u662f\u5c3d\u529b\u800c\u4e3a\u7684\u7f51\u7edc\u5c42\u534f\u8bae\uff0c\u672c\u8eab\u662f\u4e0d\u53ef\u9760\u7684\uff0c\u6240\u4ee5\u4e3a\u4e86\u4fdd\u8bc1\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0cOSPF \u91c7\u7528\u4e86\u590d\u6742\u7684\u786e\u8ba4\u673a\u5236\u6765\u4fdd\u8bc1\u4f20\u8f93\u53ef\u9760<\/strong>\u3002<\/p>\n

                  BGP<\/h5>\n

                  BGP<\/strong> \u91c7\u7528 TCP \u6765\u4fdd\u8bc1\u534f\u8bae\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0cTCP<\/strong> \u7aef\u53e3\u53f7\u662f 179<\/strong> \u3002BGP \u4e0d\u9700\u8981\u81ea\u5df1\u8bbe\u8ba1\u53ef\u9760\u4f20\u8f93\u673a\u5236\uff0c\u964d\u4f4e\u4e86\u534f\u8bae\u62a5\u6587\u7684\u590d\u6742\u5ea6\u548c\u5f00\u9500<\/strong>\u3002<\/p>\n

                  \"image-20230912150920166\"<\/div><\/p>\n

                  \u4e3b\u8981\u534f\u8bae\u7684\u8def\u7531\u534f\u8bae\u8868\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n\n
                  \u8def\u7531\u534f\u8bae\u540d\u79f0<\/th>\n\u4e0b\u4e00\u5c42\u534f\u8bae<\/th>\n\u65b9\u5f0f<\/th>\n\u9002\u7528\u8303\u56f4<\/th>\n\u5faa\u73af\u68c0\u6d4b<\/th>\n<\/tr>\n<\/thead>\n
                  RIP<\/td>\nUDP<\/td>\n\u8ddd\u79bb\u77e2\u91cf<\/td>\nIGP<\/td>\n\u4e0d\u53ef\u4ee5<\/td>\n<\/tr>\n
                  RIPv2<\/td>\nUDP<\/td>\n\u8ddd\u79bb\u77e2\u91cf<\/td>\nIGP<\/td>\n\u4e0d\u53ef\u4ee5<\/td>\n<\/tr>\n
                  OSPF<\/td>\nIP<\/td>\n\u94fe\u8def\u72b6\u6001<\/td>\nIGP<\/td>\n\u53ef\u4ee5<\/td>\n<\/tr>\n
                  BGP<\/td>\nTCP<\/td>\n\u8def\u5f84\u77e2\u91cf<\/td>\nEGP<\/td>\n\u53ef\u4ee5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u4e94\u3001\u4f20\u8f93\u5c42<\/h2>\n

                  \"image-20230912151457585\"<\/div><\/p>\n

                  \u521d\u8bc6\u4f20\u8f93\u5c42<\/h3>\n

                  \u4f20\u8f93\u5c42<\/strong>\u7684\u4f5c\u7528\u662f\u5efa\u7acb\u5e94\u7528\u7a0b\u5e8f\u95f4\u7684\u7aef\u5230\u7aef\u8fde\u63a5\uff0c\u4e3a\u6570\u636e\u4f20\u8f93\u63d0\u4f9b\u53ef\u9760\u6216\u4e0d\u53ef\u9760\u7684\u901a\u4fe1\u670d\u52a1\u3002\u4f20\u8f93\u5c42\u6709\u4e24\u4e2a\u91cd\u8981\u534f\u8bae\uff0c\u5206\u522b\u662f TCP \u548c UDP<\/strong>\u3002<\/p>\n

                  TCP<\/strong>\u662f\u9762\u5411\u8fde\u63a5\u7684\u53ef\u9760\u4f20\u8f93\u534f\u8bae\uff0cUDP<\/strong> \u662f\u65e0\u8fde\u63a5\u7684\u4e0d\u53ef\u9760\u4f20\u8f93\u534f\u8bae\u3002<\/p>\n

                  \u4e00\u4e2a IP<\/strong> \u5730\u5740<\/strong>\u53ef\u4ee5\u6807\u8bc6\u4e00\u53f0\u4e3b\u673a\uff0cIP \u62a5\u6587\u5934\u90e8\u6709\u4e00\u4e2a\u5b57\u6bb5\uff0c\u7528\u6765\u6807\u8bc6\u4e0a\u5c42\u534f\u8bae\u7c7b\u578b\u3002\u6839\u636e\u8fd9\u4e2a\u5b57\u6bb5\u7684\u534f\u8bae\u53f7<\/strong>\uff0c\u6765\u8bc6\u522b IP \u4f20\u8f93\u7684\u6570\u636e\u662f TCP \u8fd8\u662f UDP \u3002IP \u7528\u534f\u8bae\u53f7 6 \u6807\u8bc6 TCP \uff0c\u7528\u534f\u8bae\u53f7 17 \u6807\u8bc6 UDP<\/strong> \u3002\u4f46\u4e00\u53f0\u4e3b\u673a\u53ef\u80fd\u540c\u65f6\u6709\u591a\u4e2a\u7a0b\u5e8f\uff0c\u4f20\u8f93\u5c42\u7684 TCP \u548c UDP \uff0c\u4e3a\u4e86\u8bc6\u522b\u4e0a\u4e00\u5c42\u7684\u5e94\u7528\u7a0b\u5e8f\u7c7b\u578b\uff0c\u4f7f\u7528\u7aef\u53e3\u53f7<\/strong>\u6765\u8bc6\u522b\u5177\u4f53\u7684\u7a0b\u5e8f\uff0c\u4ece\u800c\u4f7f\u8fd9\u4e9b\u7a0b\u5e8f\u53ef\u4ee5\u590d\u7528\u7f51\u7edc\u901a\u9053\u3002<\/p>\n

                  \"image-20230912151625626\"<\/div><\/p>\n

                  \u4e8c\u5c42\u7684\u5e27\u901a\u4fe1\u548c\u4e09\u5c42\u7684\u5305\u901a\u4fe1\u90fd\u662f\u65e0\u8fde\u63a5\u7684\u3001\u4e0d\u53ef\u9760\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u56db\u5c42\u7684<\/strong> TCP\u5374\u662f\u4e00\u79cd\u53ef\u9760\u7684\u901a\u4fe1\u65b9\u5f0f<\/strong>\u3002\u5982\u679c\u5e27\u5728\u4f20\u8f93\u4e2d\u4e22\u5931\uff0c\u901a\u4fe1\u53cc\u65b9\u7684\u4e8c\u5c42\u529f\u80fd\u6a21\u5757\u53d1\u73b0\u4e0d\u4e86\uff1b\u5982\u679c\u5305\u5728\u4f20\u8f93\u4e2d\u4e22\u5931\uff0c\u901a\u4fe1\u53cc\u65b9\u7684\u4e09\u5c42\u529f\u80fd\u6a21\u5757\u53d1\u73b0\u4e0d\u4e86\u3002<\/p>\n

                  \u4e00\u4e2aTCP \u6bb5\u4e22\u5931\u4e86\uff0cTCP \u6a21\u5757\u4e00\u5b9a\u80fd\u591f\u53d1\u73b0\u3002\u4e00\u4e2a TCP \u6bb5\u7684\u4e22\u5931\uff0c\u610f\u5473\u7740\u4e00\u4e2aIP \u5305\u7684\u4e22\u5931\uff0c\u56e0\u4e3a TCP \u6bb5\u662f\u5c01\u88c5\u5728 IP \u5305\u91cc\u7684\uff1b\u540c\u7406\uff0c\u4e00\u4e2a IP \u5305\u7684\u4e22\u5931\uff0c\u610f\u5473\u7740\u4e00\u4e2a\u5e27\u7684\u4e22\u5931\u3002\u56e0\u6b64\uff0c\u4e8c\u5c42\u548c\u4e09\u5c42\u901a\u4fe1\u7684\u4e0d\u53ef\u9760\u6027\u5728 TCP \u8fd9\u91cc\u5f97\u5230\u8865\u507f\u3002<\/p>\n

                  \"image-20230912151737142\"<\/div><\/p>\n

                  \u5e94\u7528\u7a0b\u5e8f\u5176\u5b9e\u5c31\u662f TCP\/IP \u7684\u5e94\u7528\u534f\u8bae\uff0c\u5e94\u7528\u534f\u8bae\u5927\u591a\u4ee5\u5ba2\u6237\u7aef\/\u670d\u52a1\u7aef<\/strong>\u7684\u5f62\u5f0f\u8fd0\u884c\u3002<\/p>\n

                  \u5ba2\u6237\u7aef\uff08 Client \uff0c\u4f7f\u7528\u670d\u52a1\u7684\u4e00\u65b9\u3002\uff09\u662f\u8bf7\u6c42\u7684\u53d1\u8d77\u7aef\u3002\u800c\u670d\u52a1\u7aef\uff08Server \uff0c\u63d0\u4f9b\u670d\u52a1\u7684\u7a0b\u5e8f\u6216\u4e3b\u673a\u3002\uff09\u5219\u662f\u8bf7\u6c42\u7684\u5904\u7406\u7aef\u3002<\/p>\n

                  \u4f5c\u4e3a\u670d\u52a1\u7aef\u7684\u7a0b\u5e8f\u6709\u5fc5\u8981\u63d0\u524d\u542f\u52a8\uff0c\u968f\u65f6\u51c6\u5907\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002\u5426\u5219\u5373\u4f7f\u6709\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u53d1\u8fc7\u6765\uff0c\u4e5f\u65e0\u6cd5\u8fdb\u884c\u5904\u7406\u3002<\/strong><\/p>\n

                  \"image-20230912151837636\"<\/div><\/p>\n

                  \u786e\u8ba4\u4e00\u4e2a\u8bf7\u6c42\u7a76\u7adf\u662f\u53d1\u7ed9\u54ea\u4e00\u4e2a\u670d\u52a1\u7aef\uff0c\u53ef\u4ee5\u901a\u8fc7\u6536\u5230\u6570\u636e\u5305\u7684\u76ee\u7684\u7aef\u53e3\u53f7<\/strong>\u8f7b\u677e\u8bc6\u522b\u3002\u5f53\u6536\u5230 TCP \u7684\u5efa\u7acb\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u5982\u679c\u76ee\u7684\u7aef\u53e3\u53f7\u662f 22 \uff0c\u5219\u8f6c\u7ed9SSH \uff0c\u5982\u679c\u662f 80 \u5219\u8f6c\u7ed9 HTTP \u3002<\/p>\n

                  TCP<\/h4>\n

                  TCP<\/strong> \u662f\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u6d41\u534f\u8bae\u3002\u6d41\u5c31\u662f\u4e0d\u95f4\u65ad\u7684\u6570\u636e\uff0c\u5f53\u5e94\u7528\u7a0b\u5e8f\u91c7\u7528TCP \u53d1\u9001\u6d88\u606f\u65f6\uff0c\u867d\u7136\u662f\u6309\u987a\u5e8f\u53d1\u9001\uff0c\u4f46\u63a5\u6536\u7aef\u6536\u5230\u662f\u6ca1\u6709\u95f4\u9694\u7684\u6570\u636e\u6d41\u3002\u6bd4\u5982\uff0c\u5728\u53d1\u9001\u7aef\u5e94\u7528\u7a0b\u5e8f\u53d1\u9001\u4e86 10 \u6b21 100 \u5b57\u8282\u7684\u6570\u636e\uff0c\u90a3\u4e48\u5728\u63a5\u6536\u7aef\uff0c\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u6536\u5230\u4e00\u4e2a 1000 \u5b57\u8282\u8fde\u7eed\u4e0d\u95f4\u65ad\u7684\u6570\u636e\u3002<\/p>\n

                  TCP<\/strong> \u4e3a\u63d0\u4f9b\u53ef\u9760\u6027\u4f20\u8f93\uff0c\u5b9e\u884c\u987a\u5e8f\u63a7\u5236\u3001\u91cd\u53d1\u63a7\u5236\u673a\u5236<\/strong>\u3002\u6b64\u5916\u8fd8\u6709\u6d41\u91cf\u63a7\u5236\u3001\u62e5\u585e\u63a7\u5236\u3001\u63d0\u9ad8\u7f51\u7edc\u5229\u7528\u7387<\/strong>\u7b49\u4f17\u591a\u529f\u80fd\u3002<\/p>\n

                  UDP<\/h4>\n

                  UDP<\/strong> \u662f\u4e0d\u5177\u6709\u53ef\u9760\u6027\u7684\u534f\u8bae\uff0c\u53ef\u9760\u6027\u529f\u80fd\u4ea4\u7ed9\u4e0a\u5c42\u7684\u5e94\u7528\u53bb\u5b8c\u6210\u3002UDP \u867d\u7136\u53ef\u4ee5\u786e\u4fdd\u53d1\u9001\u6570\u636e\u7684\u5927\u5c0f\uff0c\u6bd4\u5982\uff1a\u53d1\u9001\u7aef\u5e94\u7528\u7a0b\u5e8f\u53d1\u9001\u4e00\u4e2a 100 \u5b57\u8282\u7684\u6d88\u606f\uff0c\u90a3\u4e48\u63a5\u6536\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e5f\u4f1a\u4ee5 100 \u5b57\u8282\u4e3a\u957f\u5ea6\u63a5\u6536\u6570\u636e\u3002\u4f46\u4e0d\u80fd\u4fdd\u8bc1\u6570\u636e\u4e00\u5b9a\u4f1a\u5230\u8fbe\u3002\u56e0\u6b64\uff0c\u5e94\u7528\u6709\u65f6\u4f1a\u6839\u636e\u9700\u8981\u8fdb\u884c\u91cd\u53d1\u5904\u7406\u3002<\/p>\n

                  TCP\u548cUDP\u7684\u533a\u522b<\/h4>\n

                  TCP \u662f\u53ef\u9760\u7684\u4f20\u8f93\u534f\u8bae\uff0c\u4e00\u5b9a\u4f1a\u4f18\u4e8e UDP \u5417\uff1f\u5176\u5b9e\u4e0d\u7136\uff0cTCP\u662f\u9762\u5411\u8fde\u63a5\u7684\uff0c\u5e76\u4e14\u5177\u5907\u987a\u5e8f\u63a7\u5236\u3001\u91cd\u53d1\u63a7\u5236\u7b49\u673a\u5236\uff0c\u53ef\u4ee5\u4e3a\u5e94\u7528\u63d0\u4f9b\u53ef\u9760\u4f20\u8f93\u3002\u800c UDP\u4e3b\u8981\u7528\u4e8e\u5bf9\u9ad8\u901f\u4f20\u8f93\u548c\u5b9e\u65f6\u6027\u6709\u8f83\u9ad8\u8981\u6c42\u7684\u901a\u4fe1<\/strong>\u3002\u6bd4\u5982\uff1a\u901a\u8fc7 IP \u7535\u8bdd\u8fdb\u884c\u901a\u8bdd\u3002\u5982\u679c\u4f7f\u7528 TCP \uff0c\u6570\u636e\u5982\u679c\u4e22\u5931\u4f1a\u91cd\u53d1\uff0c\u8fd9\u6837\u5c31\u65e0\u6cd5\u6d41\u7545\u5730\u4f20\u8f93\u901a\u8bdd\u7684\u58f0\u97f3\uff0c\u5bfc\u81f4\u65e0\u6cd5\u8fdb\u884c\u6b63\u5e38\u4ea4\u6d41\u3002\u800c\u91c7\u7528 UDP \uff0c\u5b83\u4e0d\u4f1a\u8fdb\u884c\u91cd\u53d1\u5904\u7406\u3002\u4e5f\u5c31\u4e0d\u4f1a\u6709\u58f0\u97f3\u5927\u5e45\u5ea6\u5ef6\u8fdf\u5230\u8fbe\u7684\u95ee\u9898\u3002\u5373\u4f7f\u6709\u90e8\u5206\u6570\u636e\u4e22\u5931\uff0c\u4e5f\u53ea\u4f1a\u5f71\u54cd\u5c0f\u90e8\u5206\u7684\u901a\u8bdd\u3002<\/p>\n

                  \u56e0\u6b64\uff0cTCP<\/strong> \u548c<\/strong> UDP<\/strong> \u9700\u8981\u6839\u636e\u5e94\u7528\u7684\u76ee\u7684\u9009\u62e9\u4f7f\u7528<\/strong><\/p>\n

                  \u7aef\u53e3\u53f7<\/h3>\n

                  \u6570\u636e\u94fe\u8def\u5c42\u548c\u7f51\u7edc\u5c42\u7684\u5730\u5740\uff0c\u5206\u522b\u662f MAC \u5730\u5740\u548c IP \u5730\u5740\u3002MAC \u5730\u5740\u7528\u6765\u6807\u8bc6\u540c\u4e00\u7f51\u6bb5\u4e2d\u4e0d\u540c\u7684\u8bbe\u5907\uff0cIP \u5730\u5740\u6807\u8bc6\u7f51\u7edc\u4e2d\u7684\u4e3b\u673a\u6216\u8def\u7531\u5668\u3002<\/p>\n

                  \u4f20\u8f93\u5c42\u7684\u5730\u5740\u5c31\u662f\u7aef\u53e3\u53f7<\/strong>\uff0c\u7aef\u53e3\u53f7\u7528\u6765\u8bc6\u522b\u540c\u4e00\u53f0\u4e3b\u673a\u4e2d\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4e5f\u88ab\u79f0\u4e3a\u7a0b\u5e8f\u5730\u5740<\/strong>\u3002<\/p>\n

                  \u4e00\u53f0\u4e3b\u673a\u53ef\u4ee5\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u7a0b\u5e8f\uff0c\u6bd4\u5982 WWW \u670d\u52a1\u7684 Web \u6d4f\u89c8\u5668\u3001\u7535\u5b50\u90ae\u7bb1\u5ba2\u6237\u7aef\u7b49\u7a0b\u5e8f\u90fd\u53ef\u540c\u65f6\u8fd0\u884c\u3002\u4f20\u8f93\u5c42\u534f\u8bae\u6b63\u662f\u5229\u7528\u8fd9\u4e9b\u7aef\u53e3\u53f7\uff0c\u8bc6\u522b\u4e3b\u673a\u6b63\u5728\u8fdb\u884c\u901a\u4fe1\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u51c6\u786e\u7684\u4f20\u8f93\u6570\u636e\u3002<\/p>\n

                  \"image-20230912152839717\"<\/div><\/p>\n

                  \u4ec5\u4ec5\u901a\u8fc7\u76ee\u7684\u7aef\u53e3\u6765\u8bc6\u522b\u67d0\u4e00\u4e2a\u901a\u4fe1\u662f\u4e0d\u51c6\u786e\u7684<\/strong>\u3002\u4e24\u53f0\u4e3b\u673a\u8bbf\u95ee\u7684\u76ee\u7684\u7aef\u53e3\u53f780\u76f8\u540c\uff0c\u53ef\u4ee5\u6839\u636e\u6e90\u7aef\u53e3\u53f7\u533a\u5206\u8fd9\u4e24\u4e2a\u901a\u4fe1\u3002<\/p>\n

                  \u76ee\u7684\u7aef\u53e3\u53f7\u548c\u6e90\u7aef\u53e3\u53f7\u76f8\u540c\uff0c\u4f46\u662f\u4e24\u53f0\u4e3b\u673a\u7684\u6e90 IP\u5730\u5740\u4e0d\u540c\uff1bIP \u5730\u5740\u548c\u7aef\u53e3\u53f7\u90fd\u4e00\u6837\uff0c\u53ea\u662f\u534f\u8bae\u53f7\u4e0d\u540c\u3002\u8fd9\u4e9b\u60c5\u51b5\uff0c\u90fd\u4f1a\u8ba4\u4e3a\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u901a\u4fe1\u3002<\/p>\n

                  \u56e0\u6b64\uff0c\u7f51\u7edc\u901a\u4fe1\u4e2d\u901a\u5e38\u91c7\u7528 5 \u4e2a\u4fe1\u606f\u6765\u8bc6\u522b\u4e00\u4e2a\u901a\u4fe1\u3002<\/p>\n

                  \u5b83\u4eec\u662f\u6e90<\/strong> IP<\/strong> \u5730\u5740<\/strong>\u3001\u76ee\u7684<\/strong> IP<\/strong> \u5730\u5740<\/strong>\u3001\u534f\u8bae\u53f7<\/strong>\u3001\u6e90\u7aef\u53e3\u53f7<\/strong>\u3001\u76ee\u7684\u7aef\u53e3\u53f7<\/strong>\u3002\u53ea\u8981\u5176\u4e2d\u4e00\u9879\u4e0d\u540c\uff0c\u5c31\u4f1a\u8ba4\u4e3a\u662f\u4e0d\u540c\u7684\u901a\u4fe1\u3002<\/p>\n

                  \"image-20230912152933561\"<\/div><\/p>\n

                  TCP\/UDP \u7684\u7aef\u53e3\u53f7<\/strong>\u662f\u4e00\u4e2a 16 \u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u7aef\u53e3\u53f7\u8303\u56f4\u4e3a 0 ~ 65535 \u3002\u5728\u5b9e\u9645\u8fdb\u884c\u901a\u4fe1\u65f6\uff0c\u8981\u4e8b\u5148\u786e\u5b9a\u7aef\u53e3\u53f7\u3002\u786e\u5b9a\u7aef\u53e3\u53f7\u7684\u65b9\u6cd5\u5206\u4e3a\u4e24\u79cd\uff1a<\/p>\n

                  \u6807\u51c6\u7aef\u53e3\u53f7<\/h4>\n

                  \u8fd9\u79cd\u65b9\u6cd5\u4e5f\u53eb\u9759\u6001\u65b9\u6cd5\u3002\u5b83\u662f\u6307\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u90fd\u6709\u6307\u5b9a\u7684\u7aef\u53e3\u53f7\u3002HTTP \u3001TELNET \u3001FTP \u7b49\u5e38\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\u6240\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u662f\u56fa\u5b9a\u7684\uff0c\u8fd9\u4e9b\u7aef\u53e3\u53f7\u53c8<\/p>\n

                  \u79f0\u4e3a\u77e5\u540d\u7aef\u53e3\u53f7\u3002\u77e5\u540d\u7aef\u53e3\u53f7<\/strong>\u8303\u56f4\u662f 0 ~ 1023 \u3002\u9664\u4e86\u77e5\u540d\u7aef\u53e3\u53f7\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u7aef\u53e3\u53f7\u4e5f\u88ab\u6b63\u5f0f\u6ce8\u518c\uff0c\u79f0\u4e3a\u6ce8\u518c\u7aef\u53e3<\/strong>\u3002\u5b83\u4eec\u5206\u5e03\u5728 1024 ~ 49151 \u4e4b\u95f4\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                  \u7aef\u53e3\u53f7<\/th>\n\u5bf9\u5e94\u534f\u8bae<\/th>\n<\/tr>\n<\/thead>\n
                  20<\/td>\nFTP data<\/td>\n<\/tr>\n
                  21<\/td>\nFTP control<\/td>\n<\/tr>\n
                  22<\/td>\nSSH<\/td>\n<\/tr>\n
                  23<\/td>\nTelnet<\/td>\n<\/tr>\n
                  25<\/td>\nSMTP<\/td>\n<\/tr>\n
                  53<\/td>\nDNS<\/td>\n<\/tr>\n
                  69<\/td>\nTFTP<\/td>\n<\/tr>\n
                  80<\/td>\nHTTP<\/td>\n<\/tr>\n
                  110<\/td>\nPOP3<\/td>\n<\/tr>\n
                  161<\/td>\nSNMP<\/td>\n<\/tr>\n
                  162<\/td>\nSNMP Trap<\/td>\n<\/tr>\n
                  179<\/td>\nBGP<\/td>\n<\/tr>\n
                  443<\/td>\nHTTPS<\/td>\n<\/tr>\n
                  520<\/td>\nRIP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u65f6\u5e8f\u5206\u914d\u6cd5<\/h4>\n

                  \u8fd9\u79cd\u65b9\u6cd5\u4e5f\u53eb\u52a8\u6001\u5206\u914d\u6cd5\u3002\u670d\u52a1\u7aef\u6709\u5fc5\u8981\u786e\u5b9a\u76d1\u542c\u7684\u7aef\u53e3\u53f7\uff0c\u4f46\u662f\u63a5\u53d7\u670d\u52a1\u7684\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u786e\u5b9a\u7aef\u53e3\u53f7\u3002\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e0d\u7528\u8bbe\u7f6e\u7aef\u53e3\u53f7\uff0c\u7531\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u5206\u914d\u3002\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u5206\u914d\u4e0d\u51b2\u7a81\u7684\u7aef\u53e3\u53f7\u3002\u6bd4\u5982\uff1a\u6bcf\u9700\u8981\u4e00\u4e2a\u65b0\u7684\u7aef\u53e3\u53f7\u65f6\uff0c\u5c31\u5728\u4e4b\u524d\u5206\u914d\u53f7\u7801\u7684\u57fa\u7840\u4e0a\u52a0 1 \u3002\u8fd9\u6837\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5c31\u53ef\u4ee5\u52a8\u6001\u7ba1\u7406\u7aef\u53e3\u53f7\u4e86\u3002<\/p>\n

                  \u52a8\u6001\u5206\u914d\u7684\u7aef\u53e3\u53f7\u8303\u56f4\u662f 49152 ~ 65535 \u4e4b\u95f4\u3002<\/p>\n

                  UDP<\/h3>\n

                  UDP<\/strong> \uff0c\u5168\u79f0 User Datagram Protocol \u3002UDP \u4e0d\u63d0\u4f9b\u590d\u6742\u7684\u63a7\u5236\u673a\u5236\uff0c\u5229\u7528 IP \u63d0\u4f9b\u9762\u5411\u65e0\u8fde\u63a5<\/strong>\u7684\u3001\u4e0d\u53ef\u9760<\/strong>\u7684\u901a\u4fe1\u670d\u52a1\u3002<\/p>\n

                  \u5e76\u4e14\u5b83\u662f\u5c06\u5e94\u7528\u7a0b\u5e8f\u53d1\u6765\u7684\u6570\u636e\uff0c\u5728\u6536\u5230\u7684\u90a3\u4e00\u523b\uff0c\u7acb\u5373\u6309\u7167\u539f\u6837\u53d1\u9001\u5230\u7f51\u7edc\u4e0a\u7684\u4e00\u79cd\u673a\u5236\u3002<\/p>\n

                  \u5373\u4f7f\u5728\u7f51\u7edc\u51fa\u73b0\u62e5\u5835\u7684\u60c5\u51b5\u4e0b\uff0cUDP \u4e5f\u65e0\u6cd5\u8fdb\u884c\u6d41\u91cf\u63a7\u5236<\/strong>\u3002<\/p>\n

                  \u4f20\u8f93\u9014\u4e2d\u51fa\u73b0\u4e22\u5305\uff0cUDP \u4e5f\u4e0d\u8d1f\u8d23\u91cd\u53d1<\/strong>\u3002\u5f53\u51fa\u73b0\u5305\u7684\u5230\u8fbe\u987a\u5e8f\u9519\u8bef\u65f6\u4e5f\u6ca1\u6709\u7ea0\u6b63<\/strong>\u7684\u529f\u80fd\u3002<\/p>\n

                  \u5982\u679c\u9700\u8981\u8fd9\u4e9b\u7ec6\u8282\u63a7\u5236\uff0c\u90a3\u4e48\u9700\u8981\u4ea4\u7531\u4e0a\u5c42\u7684\u5e94\u7528\u7a0b\u5e8f\u53bb\u5904\u7406<\/strong>\u3002\u4e5f\u53ef\u4ee5\u8bf4\uff0c\u662f\u635f\u5931\u4fe1\u606f\u4f20\u8f93\u7684\u53ef\u9760\u6027\u6765\u63d0\u5347\u4fe1\u606f\u4f20\u8f93\u7684\u6548\u7387<\/strong>\u3002<\/p>\n

                  \u7279\u70b9<\/h4>\n