{"id":1843,"date":"2023-09-22T12:21:29","date_gmt":"2023-09-22T04:21:29","guid":{"rendered":"http:\/\/blog.xtaa.cn\/?p=1843"},"modified":"2023-09-22T15:34:40","modified_gmt":"2023-09-22T07:34:40","slug":"%e5%87%a0%e7%a7%8d%e5%9f%ba%e6%9c%ac%e7%9a%84%e7%bd%91%e7%bb%9c%e6%94%bb%e5%87%bb%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"http:\/\/blog.xtaa.cn\/index.php\/2023\/09\/22\/%e5%87%a0%e7%a7%8d%e5%9f%ba%e6%9c%ac%e7%9a%84%e7%bd%91%e7%bb%9c%e6%94%bb%e5%87%bb%e5%8e%9f%e7%90%86\/","title":{"rendered":"\u51e0\u79cd\u57fa\u672c\u7684\u7f51\u7edc\u653b\u51fb\u539f\u7406"},"content":{"rendered":"\n

1.1 TCP SYN\u62d2\u7edd\u670d\u52a1\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2aTCP\u8fde\u63a5\u7684\u5efa\u7acb\u9700\u8981\u7ecf\u8fc7\u4e09\u6b21\u63e1\u624b\u7684\u8fc7\u7a0b\uff0c\u5373\uff1a<\/p>\n\n\n\n

1\u3001 \u5efa\u7acb\u53d1\u8d77\u8005\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u9001\u4e00\u4e2aTCP SYN\u62a5\u6587\uff1b<\/p>\n\n\n\n

2\u3001\u76ee\u6807\u8ba1\u7b97\u673a\u6536\u5230\u8fd9\u4e2aSYN\u62a5\u6587\u540e\uff0c\u5728\u5185\u5b58\u4e2d\u521b\u5efaTCP\u8fde\u63a5\u63a7\u5236\u5757\uff08TCB\uff09\uff0c\u7136\u540e\u5411\u53d1\u8d77\u8005\u56de\u9001\u4e00\u4e2aTCP ACK\u62a5\u6587\uff0c\u7b49\u5f85\u53d1\u8d77\u8005\u7684\u56de\u5e94\uff1b<\/p>\n\n\n\n

3\u3001 \u53d1\u8d77\u8005\u6536\u5230TCP ACK\u62a5\u6587\u540e\uff0c\u518d\u56de\u5e94\u4e00\u4e2aACK\u62a5\u6587\uff0c\u8fd9\u6837TCP\u8fde\u63a5\u5c31\u5efa\u7acb\u8d77\u6765\u4e86\u3002<\/p>\n\n\n\n

\u5229\u7528\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u4e00\u4e9b\u6076\u610f\u7684\u653b\u51fb\u8005\u53ef\u4ee5\u8fdb\u884c\u6240\u8c13\u7684TCP SYN\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff1a<\/p>\n\n\n\n

1\u3001 \u653b\u51fb\u8005\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u9001\u4e00\u4e2aTCP SYN\u62a5\u6587\uff1b<\/p>\n\n\n\n

2\u3001\u76ee\u6807\u8ba1\u7b97\u673a\u6536\u5230\u8fd9\u4e2a\u62a5\u6587\u540e\uff0c\u5efa\u7acbTCP\u8fde\u63a5\u63a7\u5236\u7ed3\u6784\uff08TCB\uff09\uff0c\u5e76\u56de\u5e94\u4e00\u4e2aACK\uff0c\u7b49\u5f85\u53d1\u8d77\u8005\u7684\u56de\u5e94\uff1b<\/p>\n\n\n\n

3\u3001\u800c\u53d1\u8d77\u8005\u5219\u4e0d\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u56de\u5e94ACK\u62a5\u6587\uff0c\u8fd9\u6837\u5bfc\u81f4\u76ee\u6807\u8ba1\u7b97\u673a\u4e00\u81f4\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\u3002<\/p>\n\n\n\n

\u53ef\u4ee5\u770b\u51fa\uff0c\u76ee\u6807\u8ba1\u7b97\u673a\u5982\u679c\u63a5\u6536\u5230\u5927\u91cf\u7684TCP SYN\u62a5\u6587\uff0c\u800c\u6ca1\u6709\u6536\u5230\u53d1\u8d77\u8005\u7684\u7b2c\u4e09\u6b21ACK\u56de\u5e94\uff0c\u4f1a\u4e00\u76f4\u7b49\u5f85\uff0c\u5904\u4e8e\u8fd9\u6837\u5c34\u5c2c\u72b6\u6001\u7684\u534a\u8fde\u63a5\u5982\u679c\u5f88\u591a\uff0c\u5219\u4f1a\u628a\u76ee\u6807\u8ba1\u7b97\u673a\u7684\u8d44\u6e90\uff08TCB\u63a7\u5236\u7ed3\u6784\uff0cTCB\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u662f\u6709\u9650\u7684\uff09\u8017\u5c3d\uff0c\u800c\u4e0d\u80fd\u54cd\u5e94\u6b63\u5e38\u7684TCP\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n

1.2 ICMP\u6d2a\u6c34<\/strong><\/p>\n\n\n\n

\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u5bf9\u7f51\u7edc\u8fdb\u884c\u8bca\u65ad\uff0c\u4e00\u4e9b\u8bca\u65ad\u7a0b\u5e8f\uff0c\u6bd4\u5982PING\u7b49\uff0c\u4f1a\u53d1\u51faICMP\u54cd\u5e94\u8bf7\u6c42\u62a5\u6587\uff08ICMP ECHO\uff09\uff0c\u63a5\u6536\u8ba1\u7b97\u673a\u63a5\u6536\u5230ICMP ECHO\u540e\uff0c\u4f1a\u56de\u5e94\u4e00\u4e2aICMP ECHO Reply\u62a5\u6587\u3002\u800c\u8fd9\u4e2a\u8fc7\u7a0b\u662f\u9700\u8981CPU\u5904\u7406\u7684\uff0c\u6709\u7684\u60c5\u51b5\u4e0b\u8fd8\u53ef\u80fd\u6d88\u8017\u6389\u5927\u91cf\u7684\u8d44\u6e90\uff0c\u6bd4\u5982\u5904\u7406\u5206\u7247\u7684\u65f6\u5019\u3002\u8fd9\u6837\u5982\u679c\u653b\u51fb\u8005\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u9001\u5927\u91cf\u7684ICMP ECHO\u62a5\u6587\uff08\u4ea7\u751fICMP\u6d2a\u6c34\uff09\uff0c\u5219\u76ee\u6807\u8ba1\u7b97\u673a\u4f1a\u5fd9\u4e8e\u5904\u7406\u8fd9\u4e9bECHO\u62a5\u6587\uff0c\u800c\u65e0\u6cd5\u7ee7\u7eed\u5904\u7406\u5176\u5b83\u7684\u7f51\u7edc\u6570\u636e\u62a5\u6587\uff0c\u8fd9\u4e5f\u662f\u4e00\u79cd\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff08DOS\uff09\u3002<\/p>\n\n\n\n

1.3 UDP\u6d2a\u6c34<\/strong><\/p>\n\n\n\n

\u539f\u7406\u4e0eICMP\u6d2a\u6c34\u7c7b\u4f3c\uff0c\u653b\u51fb\u8005\u901a\u8fc7\u53d1\u9001\u5927\u91cf\u7684UDP\u62a5\u6587\u7ed9\u76ee\u6807\u8ba1\u7b97\u673a\uff0c\u5bfc\u81f4\u76ee\u6807\u8ba1\u7b97\u673a\u5fd9\u4e8e\u5904\u7406\u8fd9\u4e9bUDP\u62a5\u6587\u800c\u65e0\u6cd5\u7ee7\u7eed\u5904\u7406\u6b63\u5e38\u7684\u62a5\u6587\u3002<\/p>\n\n\n\n

1.4 \u7aef\u53e3\u626b\u63cf<\/strong><\/p>\n\n\n\n

\u6839\u636eTCP\u534f\u8bae\u89c4\u8303\uff0c\u5f53\u4e00\u53f0\u8ba1\u7b97\u673a\u6536\u5230\u4e00\u4e2aTCP\u8fde\u63a5\u5efa\u7acb\u8bf7\u6c42\u62a5\u6587\uff08TCP SYN\uff09\u7684\u65f6\u5019\uff0c\u505a\u8fd9\u6837\u7684\u5904\u7406\uff1a<\/p>\n\n\n\n

1\u3001 \u5982\u679c\u8bf7\u6c42\u7684TCP\u7aef\u53e3\u662f\u5f00\u653e\u7684\uff0c\u5219\u56de\u5e94\u4e00\u4e2aTCP ACK\u62a5\u6587\uff0c\u5e76\u5efa\u7acbTCP\u8fde\u63a5\u63a7\u5236\u7ed3\u6784\uff08TCB\uff09\uff1b<\/p>\n\n\n\n

2\u3001 \u5982\u679c\u8bf7\u6c42\u7684TCP\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\uff0c\u5219\u56de\u5e94\u4e00\u4e2aTCP RST\uff08TCP\u5934\u90e8\u4e2d\u7684RST\u6807\u5fd7\u8bbe\u4e3a1\uff09\u62a5\u6587\uff0c\u544a\u8bc9\u53d1\u8d77\u8ba1\u7b97\u673a\uff0c\u8be5\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\u3002<\/p>\n\n\n\n

\u76f8\u5e94\u5730\uff0c\u5982\u679cIP\u534f\u8bae\u6808\u6536\u5230\u4e00\u4e2aUDP\u62a5\u6587\uff0c\u505a\u5982\u4e0b\u5904\u7406\uff1a<\/p>\n\n\n\n

1\u3001\u5982\u679c\u8be5\u62a5\u6587\u7684\u76ee\u6807\u7aef\u53e3\u5f00\u653e\uff0c\u5219\u628a\u8be5UDP\u62a5\u6587\u9001\u4e0a\u5c42\u534f\u8bae\uff08UDP\uff09\u5904\u7406\uff0c\u4e0d\u56de\u5e94\u4efb\u4f55\u62a5\u6587\uff08\u4e0a\u5c42\u534f\u8bae\u6839\u636e\u5904\u7406\u7ed3\u679c\u800c\u56de\u5e94\u7684\u62a5\u6587\u4f8b\u5916\uff09\uff1b<\/p>\n\n\n\n

2\u3001\u5982\u679c\u8be5\u62a5\u6587\u7684\u76ee\u6807\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\uff0c\u5219\u5411\u53d1\u8d77\u8005\u56de\u5e94\u4e00\u4e2aICMP\u4e0d\u53ef\u8fbe\u62a5\u6587\uff0c\u544a\u8bc9\u53d1\u8d77\u8005\u8ba1\u7b97\u673a\u8be5UDP\u62a5\u6587\u7684\u7aef\u53e3\u4e0d\u53ef\u8fbe\u3002<\/p>\n\n\n\n

\u5229\u7528\u8fd9\u4e2a\u539f\u7406\uff0c\u653b\u51fb\u8005\u8ba1\u7b97\u673a\u4fbf\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001\u5408\u9002\u7684\u62a5\u6587\uff0c\u5224\u65ad\u76ee\u6807\u8ba1\u7b97\u673a\u54ea\u4e9bTCP\u6216UDP\u7aef\u53e3\u662f\u5f00\u653e\u7684\uff0c\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n

1\u3001\u53d1\u51fa\u7aef\u53e3\u53f7\u4ece0\u5f00\u59cb\u4f9d\u6b21\u9012\u589e\u7684TCP SYN\u6216UDP\u62a5\u6587\uff08\u7aef\u53e3\u53f7\u662f\u4e00\u4e2a16\u6bd4\u7279\u7684\u6570\u5b57\uff0c\u8fd9\u6837\u6700\u5927\u4e3a65535\uff0c\u6570\u91cf\u5f88\u6709\u9650\uff09\uff1b<\/p>\n\n\n\n

2\u3001\u5982\u679c\u6536\u5230\u4e86\u9488\u5bf9\u8fd9\u4e2aTCP\u62a5\u6587\u7684RST\u62a5\u6587\uff0c\u6216\u9488\u5bf9\u8fd9\u4e2aUDP\u62a5\u6587\u7684ICMP\u4e0d\u53ef\u8fbe\u62a5\u6587\uff0c\u5219\u8bf4\u660e\u8fd9\u4e2a\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\uff1b<\/p>\n\n\n\n

3\u3001\u76f8\u53cd\uff0c\u5982\u679c\u6536\u5230\u4e86\u9488\u5bf9\u8fd9\u4e2aTCP SYN\u62a5\u6587\u7684ACK\u62a5\u6587\uff0c\u6216\u8005\u6ca1\u6709\u63a5\u6536\u5230\u4efb\u4f55\u9488\u5bf9\u8be5UDP\u62a5\u6587\u7684ICMP\u62a5\u6587\uff0c\u5219\u8bf4\u660e\u8be5TCP\u7aef\u53e3\u662f\u5f00\u653e\u7684\uff0cUDP\u7aef\u53e3\u53ef\u80fd\u5f00\u653e\uff08\u56e0\u4e3a\u6709\u7684\u5b9e\u73b0\u4e2d\u53ef\u80fd\u4e0d\u56de\u5e94ICMP\u4e0d\u53ef\u8fbe\u62a5\u6587\uff0c\u5373\u4f7f\u8be5UDP\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\uff09\u3002<\/p>\n\n\n\n

\u8fd9\u6837\u7ee7\u7eed\u4e0b\u53bb\uff0c\u4fbf\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5224\u65ad\u51fa\u76ee\u6807\u8ba1\u7b97\u673a\u5f00\u653e\u4e86\u54ea\u4e9bTCP\u6216UDP\u7aef\u53e3\uff0c\u7136\u540e\u9488\u5bf9\u7aef\u53e3\u7684\u5177\u4f53\u6570\u5b57\uff0c\u8fdb\u884c\u4e0b\u4e00\u6b65\u653b\u51fb\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u7aef\u53e3\u626b\u63cf\u653b\u51fb\u3002<\/p>\n\n\n\n

1.5 \u5206\u7247IP\u62a5\u6587\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u4e3a\u4e86\u4f20\u9001\u4e00\u4e2a\u5927\u7684IP\u62a5\u6587\uff0cIP\u534f\u8bae\u6808\u9700\u8981\u6839\u636e\u94fe\u8def\u63a5\u53e3\u7684MTU\u5bf9\u8be5IP\u62a5\u6587\u8fdb\u884c\u5206\u7247\uff0c\u901a\u8fc7\u586b\u5145\u9002\u5f53\u7684IP\u5934\u4e2d\u7684\u5206\u7247\u6307\u793a\u5b57\u6bb5\uff0c\u63a5\u6536\u8ba1\u7b97\u673a\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u628a\u8fd9\u4e9bIP\u5206\u7247\u62a5\u6587\u7ec4\u88c5\u8d77\u6765\u3002<\/p>\n\n\n\n

\u76ee\u6807\u8ba1\u7b97\u673a\u5728\u5904\u7406\u8fd9\u4e9b\u5206\u7247\u62a5\u6587\u7684\u65f6\u5019\uff0c\u4f1a\u628a\u5148\u5230\u7684\u5206\u7247\u62a5\u6587\u7f13\u5b58\u8d77\u6765\uff0c\u7136\u540e\u4e00\u76f4\u7b49\u5f85\u540e\u7eed\u7684\u5206\u7247\u62a5\u6587\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u6d88\u8017\u6389\u4e00\u90e8\u5206\u5185\u5b58\uff0c\u4ee5\u53ca\u4e00\u4e9bIP\u534f\u8bae\u6808\u7684\u6570\u636e\u7ed3\u6784\u3002\u5982\u679c\u653b\u51fb\u8005\u7ed9\u76ee\u6807\u8ba1\u7b97\u673a\u53ea\u53d1\u9001\u4e00\u7247\u5206\u7247\u62a5\u6587\uff0c\u800c\u4e0d\u53d1\u9001\u6240\u6709\u7684\u5206\u7247\u62a5\u6587\uff0c\u8fd9\u6837\u653b\u51fb\u8005\u8ba1\u7b97\u673a\u4fbf\u4f1a\u4e00\u76f4\u7b49\u5f85\uff08\u76f4\u5230\u4e00\u4e2a\u5185\u90e8\u8ba1\u65f6\u5668\u5230\u65f6\uff09\uff0c\u5982\u679c\u653b\u51fb\u8005\u53d1\u9001\u4e86\u5927\u91cf\u7684\u5206\u7247\u62a5\u6587\uff0c\u5c31\u4f1a\u6d88\u8017\u6389\u76ee\u6807\u8ba1\u7b97\u673a\u7684\u8d44\u6e90\uff0c\u800c\u5bfc\u81f4\u4e0d\u80fd\u76f8\u5e94\u6b63\u5e38\u7684IP\u62a5\u6587\uff0c\u8fd9\u4e5f\u662f\u4e00\u79cdDOS\u653b\u51fb\u3002<\/p>\n\n\n\n

1.6 SYN\u6bd4\u7279\u548cFIN\u6bd4\u7279\u540c\u65f6\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n

\u5728TCP\u62a5\u6587\u7684\u62a5\u5934\u4e2d\uff0c\u6709\u51e0\u4e2a\u6807\u5fd7\u5b57\u6bb5\uff1a<\/p>\n\n\n\n

1\u3001 SYN\uff1a\u8fde\u63a5\u5efa\u7acb\u6807\u5fd7\uff0cTCP SYN\u62a5\u6587\u5c31\u662f\u628a\u8fd9\u4e2a\u6807\u5fd7\u8bbe\u7f6e\u4e3a1\uff0c\u6765\u8bf7\u6c42\u5efa\u7acb\u8fde\u63a5\uff1b<\/p>\n\n\n\n

2\u3001 ACK\uff1a\u56de\u5e94\u6807\u5fd7\uff0c\u5728\u4e00\u4e2aTCP\u8fde\u63a5\u4e2d\uff0c\u9664\u4e86\u7b2c\u4e00\u4e2a\u62a5\u6587\uff08TCP SYN\uff09\u5916\uff0c\u6240\u6709\u62a5\u6587\u90fd\u8bbe\u7f6e\u8be5\u5b57\u6bb5\uff0c\u4f5c\u4e3a\u5bf9\u4e0a\u4e00\u4e2a\u62a5\u6587\u7684\u76f8\u5e94\uff1b<\/p>\n\n\n\n

3\u3001 FIN\uff1a \u7ed3\u675f\u6807\u5fd7\uff0c\u5f53\u4e00\u53f0\u8ba1\u7b97\u673a\u63a5\u6536\u5230\u4e00\u4e2a\u8bbe\u7f6e\u4e86FIN\u6807\u5fd7\u7684TCP\u62a5\u6587\u540e\uff0c\u4f1a\u62c6\u9664\u8fd9\u4e2aTCP\u8fde\u63a5\uff1b<\/p>\n\n\n\n

4\u3001 RST\uff1a\u590d\u4f4d\u6807\u5fd7\uff0c\u5f53IP\u534f\u8bae\u6808\u63a5\u6536\u5230\u4e00\u4e2a\u76ee\u6807\u7aef\u53e3\u4e0d\u5b58\u5728\u7684TCP\u62a5\u6587\u7684\u65f6\u5019\uff0c\u4f1a\u56de\u5e94\u4e00\u4e2aRST\u6807\u5fd7\u8bbe\u7f6e\u7684\u62a5\u6587\uff1b<\/p>\n\n\n\n

5\u3001 PSH\uff1a\u901a\u77e5\u534f\u8bae\u6808\u5c3d\u5feb\u628aTCP\u6570\u636e\u63d0\u4ea4\u7ed9\u4e0a\u5c42\u7a0b\u5e8f\u5904\u7406\u3002<\/p>\n\n\n\n

\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0cSYN\u6807\u5fd7\uff08\u8fde\u63a5\u8bf7\u6c42\u6807\u5fd7\uff09\u548cFIN\u6807\u5fd7\uff08\u8fde\u63a5\u62c6\u9664\u6807\u5fd7\uff09\u662f\u4e0d\u80fd\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2aTCP\u62a5\u6587\u4e2d\u7684\u3002\u800c\u4e14RFC\u4e5f\u6ca1\u6709\u89c4\u5b9aIP\u534f\u8bae\u6808\u5982\u4f55\u5904\u7406\u8fd9\u6837\u7684\u7578\u5f62\u62a5\u6587\uff0c\u56e0\u6b64\uff0c\u5404\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u7684\u534f\u8bae\u6808\u5728\u6536\u5230\u8fd9\u6837\u7684\u62a5\u6587\u540e\u7684\u5904\u7406\u65b9\u5f0f\u4e5f\u4e0d\u540c\uff0c\u653b\u51fb\u8005\u5c31\u53ef\u4ee5\u5229\u7528\u8fd9\u4e2a\u7279\u5f81\uff0c\u901a\u8fc7\u53d1\u9001SYN\u548cFIN\u540c\u65f6\u8bbe\u7f6e\u7684\u62a5\u6587\uff0c\u6765\u5224\u65ad\u64cd\u4f5c\u7cfb\u7edf\u7684\u7c7b\u578b\uff0c\u7136\u540e\u9488\u5bf9\u8be5\u64cd\u4f5c\u7cfb\u7edf\uff0c\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u653b\u51fb\u3002<\/p>\n\n\n\n

1.7 \u6ca1\u6709\u8bbe\u7f6e\u4efb\u4f55\u6807\u5fd7\u7684TCP\u62a5\u6587\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4efb\u4f55TCP\u62a5\u6587\u90fd\u4f1a\u8bbe\u7f6eSYN\uff0cFIN\uff0cACK\uff0cRST\uff0cPSH\u4e94\u4e2a\u6807\u5fd7\u4e2d\u7684\u81f3\u5c11\u4e00\u4e2a\u6807\u5fd7\uff0c\u7b2c\u4e00\u4e2aTCP\u62a5\u6587\uff08TCP\u8fde\u63a5\u8bf7\u6c42\u62a5\u6587\uff09\u8bbe\u7f6eSYN\u6807\u5fd7\uff0c\u540e\u7eed\u62a5\u6587\u90fd\u8bbe\u7f6eACK\u6807\u5fd7\u3002\u6709\u7684\u534f\u8bae\u6808\u57fa\u4e8e\u8fd9\u6837\u7684\u5047\u8bbe\uff0c\u6ca1\u6709\u9488\u5bf9\u4e0d\u8bbe\u7f6e\u4efb\u4f55\u6807\u5fd7\u7684TCP\u62a5\u6587\u7684\u5904\u7406\u8fc7\u7a0b\uff0c\u56e0\u6b64\uff0c\u8fd9\u6837\u7684\u534f\u8bae\u6808\u5982\u679c\u6536\u5230\u4e86\u8fd9\u6837\u7684\u62a5\u6587\uff0c\u53ef\u80fd\u4f1a\u5d29\u6e83\u3002\u653b\u51fb\u8005\u5229\u7528\u4e86\u8fd9\u4e2a\u7279\u70b9\uff0c\u5bf9\u76ee\u6807\u8ba1\u7b97\u673a\u8fdb\u884c\u653b\u51fb\u3002<\/p>\n\n\n\n

1.8 \u8bbe\u7f6e\u4e86FIN\u6807\u5fd7\u5374\u6ca1\u6709\u8bbe\u7f6eACK\u6807\u5fd7\u7684TCP\u62a5\u6587\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0cACK\u6807\u5fd7\u5728\u9664\u4e86\u7b2c\u4e00\u4e2a\u62a5\u6587\uff08SYN\u62a5\u6587\uff09\u5916\uff0c\u6240\u6709\u7684\u62a5\u6587\u90fd\u8bbe\u7f6e\uff0c\u5305\u62ecTCP\u8fde\u63a5\u62c6\u9664\u62a5\u6587\uff08FIN\u6807\u5fd7\u8bbe\u7f6e\u7684\u62a5\u6587\uff09\u3002\u4f46\u6709\u7684\u653b\u51fb\u8005\u5374\u53ef\u80fd\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u9001\u8bbe\u7f6e\u4e86FIN\u6807\u5fd7\u5374\u6ca1\u6709\u8bbe\u7f6eACK\u6807\u5fd7\u7684TCP\u62a5\u6587\uff0c\u8fd9\u6837\u53ef\u80fd\u5bfc\u81f4\u76ee\u6807\u8ba1\u7b97\u673a\u5d29\u6e83\u3002<\/p>\n\n\n\n

1.9 \u6b7b\u4ea1\u4e4bPING<\/strong><\/p>\n\n\n\n

TCP\/IP\u89c4\u8303\u8981\u6c42IP\u62a5\u6587\u7684\u957f\u5ea6\u5728\u4e00\u5b9a\u8303\u56f4\u5185\uff08\u6bd4\u5982\uff0c0\uff0d64K\uff09\uff0c\u4f46\u6709\u7684\u653b\u51fb\u8ba1\u7b97\u673a\u53ef\u80fd\u5411\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u51fa\u5927\u4e8e64K\u957f\u5ea6\u7684PING\u62a5\u6587\uff0c\u5bfc\u81f4\u76ee\u6807\u8ba1\u7b97\u673aIP\u534f\u8bae\u6808\u5d29\u6e83\u3002<\/p>\n\n\n\n

1.10 \u5730\u5740\u731c\u6d4b\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u8ddf\u7aef\u53e3\u626b\u63cf\u653b\u51fb\u7c7b\u4f3c\uff0c\u653b\u51fb\u8005\u901a\u8fc7\u53d1\u9001\u76ee\u6807\u5730\u5740\u53d8\u5316\u7684\u5927\u91cf\u7684ICMP ECHO\u62a5\u6587\uff0c\u6765\u5224\u65ad\u76ee\u6807\u8ba1\u7b97\u673a\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u6536\u5230\u4e86\u5bf9\u5e94\u7684ECMP ECHO REPLY\u62a5\u6587\uff0c\u5219\u8bf4\u660e\u76ee\u6807\u8ba1\u7b97\u673a\u662f\u5b58\u5728\u7684\uff0c\u4fbf\u53ef\u4ee5\u9488\u5bf9\u8be5\u8ba1\u7b97\u673a\u8fdb\u884c\u4e0b\u4e00\u6b65\u7684\u653b\u51fb\u3002<\/p>\n\n\n\n

\u30001.11 \u6cea\u6ef4\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u5bf9\u4e8e\u4e00\u4e9b\u5927\u7684IP\u5305\uff0c\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u5206\u7247\u4f20\u9001\uff0c\u8fd9\u662f\u4e3a\u4e86\u8fce\u5408\u94fe\u8def\u5c42\u7684MTU\uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u7684\u8981\u6c42\u3002\u6bd4\u5982\uff0c\u4e00\u4e2a4500\u5b57\u8282\u7684IP\u5305\uff0c\u5728MTU\u4e3a1500\u7684\u94fe\u8def\u4e0a\u4f20\u8f93\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u5206\u6210\u4e09\u4e2aIP\u5305\u3002<\/p>\n\n\n\n

\u5728IP\u62a5\u5934\u4e2d\u6709\u4e00\u4e2a\u504f\u79fb\u5b57\u6bb5\u548c\u4e00\u4e2a\u5206\u7247\u6807\u5fd7\uff08MF\uff09\uff0c\u5982\u679cMF\u6807\u5fd7\u8bbe\u7f6e\u4e3a1\uff0c\u5219\u8868\u9762\u8fd9\u4e2aIP\u5305\u662f\u4e00\u4e2a\u5927IP\u5305\u7684\u7247\u65ad\uff0c\u5176\u4e2d\u504f\u79fb\u5b57\u6bb5\u6307\u51fa\u4e86\u8fd9\u4e2a\u7247\u65ad\u5728\u6574\u4e2aIP\u5305\u4e2d\u7684\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c\u5bf9\u4e00\u4e2a4500\u5b57\u8282\u7684IP\u5305\u8fdb\u884c\u5206\u7247\uff08MTU\u4e3a1500\uff09\uff0c\u5219\u4e09\u4e2a\u7247\u65ad\u4e2d\u504f\u79fb\u5b57\u6bb5\u7684\u503c\u4f9d\u6b21\u4e3a\uff1a0\uff0c1500\uff0c3000\u3002\u8fd9\u6837\u63a5\u6536\u7aef\u5c31\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u6210\u529f\u7684\u7ec4\u88c5\u8be5IP\u5305\u3002<\/p>\n\n\n\n

\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u6253\u7834\u8fd9\u79cd\u6b63\u5e38\u60c5\u51b5\uff0c\u628a\u504f\u79fb\u5b57\u6bb5\u8bbe\u7f6e\u6210\u4e0d\u6b63\u786e\u7684\u503c\uff0c\u5373\u53ef\u80fd\u51fa\u73b0\u91cd\u5408\u6216\u65ad\u5f00\u7684\u60c5\u51b5\uff0c\u5c31\u53ef\u80fd\u5bfc\u81f4\u76ee\u6807\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u3002\u6bd4\u5982\uff0c\u628a\u4e0a\u8ff0\u504f\u79fb\u8bbe\u7f6e\u4e3a0\uff0c1300\uff0c3000\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u6cea\u6ef4\u653b\u51fb\u3002<\/p>\n\n\n\n

1.12 \u5e26\u6e90\u8def\u7531\u9009\u9879\u7684IP\u62a5\u6587<\/strong><\/p>\n\n\n\n

\u4e3a\u4e86\u5b9e\u73b0\u4e00\u4e9b\u9644\u52a0\u529f\u80fd\uff0cIP\u534f\u8bae\u89c4\u8303\u5728IP\u62a5\u5934\u4e2d\u589e\u52a0\u4e86\u9009\u9879\u5b57\u6bb5\uff0c\u8fd9\u4e2a\u5b57\u6bb5\u53ef\u4ee5\u6709\u9009\u62e9\u7684\u643a\u5e26\u4e00\u4e9b\u6570\u636e\uff0c\u4ee5\u6307\u660e\u4e2d\u95f4\u8bbe\u5907\uff08\u8def\u7531\u5668\uff09\u6216\u6700\u7ec8\u76ee\u6807\u8ba1\u7b97\u673a\u5bf9\u8fd9\u4e9bIP\u62a5\u6587\u8fdb\u884c\u989d\u5916\u7684\u5904\u7406\u3002<\/p>\n\n\n\n

\u6e90\u8def\u7531\u9009\u9879\u4fbf\u662f\u5176\u4e2d\u4e00\u4e2a\uff0c\u4ece\u540d\u5b57\u4e2d\u5c31\u53ef\u4ee5\u770b\u51fa\uff0c\u6e90\u8def\u7531\u9009\u9879\u7684\u76ee\u7684\uff0c\u662f\u6307\u5bfc\u4e2d\u95f4\u8bbe\u5907\uff08\u8def\u7531\u5668\uff09\u5982\u4f55\u8f6c\u53d1\u8be5\u6570\u636e\u62a5\u6587\u7684\uff0c\u5373\u660e\u786e\u6307\u660e\u4e86\u62a5\u6587\u7684\u4f20\u8f93\u8def\u5f84\u3002\u6bd4\u5982\uff0c\u8ba9\u4e00\u4e2aIP\u62a5\u6587\u660e\u786e\u7684\u7ecf\u8fc7\u4e09\u53f0\u8def\u7531\u5668R1\uff0cR2\uff0cR3\uff0c\u5219\u53ef\u4ee5\u5728\u6e90\u8def\u7531\u9009\u9879\u4e2d\u660e\u786e\u6307\u660e\u8fd9\u4e09\u4e2a\u8def\u7531\u5668\u7684\u63a5\u53e3\u5730\u5740\uff0c\u8fd9\u6837\u4e0d\u8bba\u4e09\u53f0\u8def\u7531\u5668\u4e0a\u7684\u8def\u7531\u8868\u5982\u4f55\uff0c\u8fd9\u4e2aIP\u62a5\u6587\u5c31\u4f1a\u4f9d\u6b21\u7ecf\u8fc7R1\uff0cR2\uff0cR3\u3002\u800c\u4e14\u8fd9\u4e9b\u5e26\u6e90\u8def\u7531\u9009\u9879\u7684IP\u62a5\u6587\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5176\u6e90\u5730\u5740\u4e0d\u65ad\u6539\u53d8\uff0c\u76ee\u6807\u5730\u5740\u4e5f\u4e0d\u65ad\u6539\u53d8\uff0c\u56e0\u6b64\uff0c\u901a\u8fc7\u5408\u9002\u7684\u8bbe\u7f6e\u6e90\u8def\u7531\u9009\u9879\uff0c\u653b\u51fb\u8005\u4fbf\u53ef\u4ee5\u4f2a\u9020\u4e00\u4e9b\u5408\u6cd5\u7684IP\u5730\u5740\uff0c\u800c\u8499\u6df7\u8fdb\u5165\u7f51\u7edc\u3002<\/p>\n\n\n\n

1.13 \u5e26\u8bb0\u5f55\u8def\u7531\u9009\u9879\u7684IP\u62a5\u6587<\/strong><\/p>\n\n\n\n

\u8bb0\u5f55\u8def\u7531\u9009\u9879\u4e5f\u662f\u4e00\u4e2aIP\u9009\u9879\uff0c\u643a\u5e26\u4e86\u8be5\u9009\u9879\u7684IP\u62a5\u6587\uff0c\u6bcf\u7ecf\u8fc7\u4e00\u53f0\u8def\u7531\u5668\uff0c\u8be5\u8def\u7531\u5668\u4fbf\u628a\u81ea\u5df1\u7684\u63a5\u53e3\u5730\u5740\u586b\u5728\u9009\u9879\u5b57\u6bb5\u91cc\u9762\u3002\u8fd9\u6837\u8fd9\u4e9b\u62a5\u6587\u5728\u5230\u8fbe\u76ee\u7684\u5730\u7684\u65f6\u5019\uff0c\u9009\u9879\u6570\u636e\u91cc\u9762\u4fbf\u8bb0\u5f55\u4e86\u8be5\u62a5\u6587\u7ecf\u8fc7\u7684\u6574\u4e2a\u8def\u5f84\u3002<\/p>\n\n\n\n

\u901a\u8fc7\u8fd9\u6837\u7684\u62a5\u6587\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5224\u65ad\u8be5\u62a5\u6587\u7ecf\u8fc7\u7684\u8def\u5f84\uff0c\u4ece\u800c\u4f7f\u653b\u51fb\u8005\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5bfb\u627e\u5176\u4e2d\u7684\u653b\u51fb\u5f31\u70b9\u3002<\/p>\n\n\n\n

1.14 \u672a\u77e5\u534f\u8bae\u5b57\u6bb5\u7684IP\u62a5\u6587<\/strong><\/p>\n\n\n\n

\u5728IP\u62a5\u6587\u5934\u4e2d\uff0c\u6709\u4e00\u4e2a\u534f\u8bae\u5b57\u6bb5\uff0c\u8fd9\u4e2a\u5b57\u6bb5\u6307\u660e\u4e86\u8be5IP\u62a5\u6587\u627f\u8f7d\u4e86\u4f55\u79cd\u534f\u8bae\uff0c\u6bd4\u5982\uff0c\u5982\u679c\u8be5\u5b57\u6bb5\u503c\u4e3a1\uff0c\u5219\u8868\u660e\u8be5IP\u62a5\u6587\u627f\u8f7d\u4e86ICMP\u62a5\u6587\uff0c\u5982\u679c\u4e3a6\uff0c\u5219\u662fTCP\uff0c\u7b49\u7b49\u3002\u76ee\u524d\u60c5\u51b5\u4e0b\uff0c\u5df2\u7ecf\u5206\u914d\u7684\u8be5\u5b57\u6bb5\u7684\u503c\u90fd\u662f\u5c0f\u4e8e100\u7684\uff0c\u56e0\u6b64\uff0c\u4e00\u4e2a\u5e26\u5927\u4e8e100\u7684\u534f\u8bae\u5b57\u6bb5\u7684IP\u62a5\u6587\uff0c\u53ef\u80fd\u5c31\u662f\u4e0d\u5408\u6cd5\u7684\uff0c\u8fd9\u6837\u7684\u62a5\u6587\u53ef\u80fd\u5bf9\u4e00\u4e9b\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u7684\u534f\u8bae\u6808\u8fdb\u884c\u7834\u574f\u3002<\/p>\n\n\n\n

1.15 IP\u5730\u5740\u6b3a\u9a97<\/strong><\/p>\n\n\n\n

\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u8def\u7531\u5668\u5728\u8f6c\u53d1\u62a5\u6587\u7684\u65f6\u5019\uff0c\u53ea\u6839\u636e\u62a5\u6587\u7684\u76ee\u7684\u5730\u5740\u67e5\u8def\u7531\u8868\uff0c\u800c\u4e0d\u7ba1\u62a5\u6587\u7684\u6e90\u5730\u5740\u662f\u4ec0\u4e48\uff0c\u56e0\u6b64\uff0c\u8fd9\u6837\u5c31\u53ef\u80fd\u9762\u4e34\u4e00\u79cd\u5371\u9669\uff1a\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u5411\u4e00\u53f0\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u51fa\u4e00\u4e2a\u62a5\u6587\uff0c\u800c\u628a\u62a5\u6587\u7684\u6e90\u5730\u5740\u586b\u5199\u4e3a\u7b2c\u4e09\u65b9\u7684\u4e00\u4e2aIP\u5730\u5740\uff0c\u8fd9\u6837\u8fd9\u4e2a\u62a5\u6587\u5728\u5230\u8fbe\u76ee\u6807\u8ba1\u7b97\u673a\u540e\uff0c\u76ee\u6807\u8ba1\u7b97\u673a\u4fbf\u53ef\u80fd\u5411\u6beb\u65e0\u77e5\u89c9\u7684\u7b2c\u4e09\u65b9\u8ba1\u7b97\u673a\u56de\u5e94\u3002\u8fd9\u4fbf\u662f\u6240\u8c13\u7684IP\u5730\u5740\u6b3a\u9a97\u653b\u51fb\u3002<\/p>\n\n\n\n

\u6bd4\u8f83\u8457\u540d\u7684SQL Server\u8815\u866b\u75c5\u6bd2\uff0c\u5c31\u662f\u91c7\u7528\u4e86\u8fd9\u79cd\u539f\u7406\u3002\u8be5\u75c5\u6bd2\uff08\u53ef\u4ee5\u7406\u89e3\u4e3a\u4e00\u4e2a\u653b\u51fb\u8005\uff09\u5411\u4e00\u53f0\u8fd0\u884cSQL Server\u89e3\u6790\u670d\u52a1\u7684\u670d\u52a1\u5668\u53d1\u9001\u4e00\u4e2a\u89e3\u6790\u670d\u52a1\u7684UDP\u62a5\u6587\uff0c\u8be5\u62a5\u6587\u7684\u6e90\u5730\u5740\u586b\u5199\u4e3a\u53e6\u5916\u4e00\u53f0\u8fd0\u884cSQL Server\u89e3\u6790\u7a0b\u5e8f\uff08SQL Server 2000\u4ee5\u540e\u7248\u672c\uff09\u7684\u670d\u52a1\u5668\uff0c\u8fd9\u6837\u7531\u4e8eSQL Server \u89e3\u6790\u670d\u52a1\u7684\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u5c31\u53ef\u80fd\u4f7f\u5f97\u8be5UDP\u62a5\u6587\u5728\u8fd9\u4e24\u53f0\u670d\u52a1\u5668\u4e4b\u95f4\u5f80\u590d\uff0c\u6700\u7ec8\u5bfc\u81f4\u670d\u52a1\u5668\u6216\u7f51\u7edc\u762b\u75ea\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u30001.17 Land\u653b\u51fb<\/strong><\/p>\n\n\n\n

LAND\u653b\u51fb\u5229\u7528\u4e86TCP\u8fde\u63a5\u5efa\u7acb\u7684\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b\uff0c\u901a\u8fc7\u5411\u4e00\u4e2a\u76ee\u6807\u8ba1\u7b97\u673a\u53d1\u9001\u4e00\u4e2aTCP SYN\u62a5\u6587\uff08\u8fde\u63a5\u5efa\u7acb\u8bf7\u6c42\u62a5\u6587\uff09\u800c\u5b8c\u6210\u5bf9\u76ee\u6807\u8ba1\u7b97\u673a\u7684\u653b\u51fb\u3002\u4e0e\u6b63\u5e38\u7684TCP SYN\u62a5\u6587\u4e0d\u540c\u7684\u662f\uff0cLAND\u653b\u51fb\u62a5\u6587\u7684\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\u662f\u76f8\u540c\u7684\uff0c\u90fd\u662f\u76ee\u6807\u8ba1\u7b97\u673a\u7684IP\u5730\u5740\u3002\u8fd9\u6837\u76ee\u6807\u8ba1\u7b97\u673a\u63a5\u6536\u5230\u8fd9\u4e2aSYN\u62a5\u6587\u540e\uff0c\u5c31\u4f1a\u5411\u8be5\u62a5\u6587\u7684\u6e90\u5730\u5740\u53d1\u9001\u4e00\u4e2aACK\u62a5\u6587\uff0c\u5e76\u5efa\u7acb\u4e00\u4e2aTCP\u8fde\u63a5\u63a7\u5236\u7ed3\u6784\uff08TCB\uff09\uff0c\u800c\u8be5\u62a5\u6587\u7684\u6e90\u5730\u5740\u5c31\u662f\u81ea\u5df1\uff0c\u56e0\u6b64\uff0c\u8fd9\u4e2aACK\u62a5\u6587\u5c31\u53d1\u7ed9\u4e86\u81ea\u5df1\u3002\u8fd9\u6837\u5982\u679c\u653b\u51fb\u8005\u53d1\u9001\u4e86\u8db3\u591f\u591a\u7684SYN\u62a5\u6587\uff0c\u5219\u76ee\u6807\u8ba1\u7b97\u673a\u7684TCB\u53ef\u80fd\u4f1a\u8017\u5c3d\uff0c\u6700\u7ec8\u4e0d\u80fd\u6b63\u5e38\u670d\u52a1\u3002\u8fd9\u4e5f\u662f\u4e00\u79cdDOS\u653b\u51fb\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

1.19 Smurf\u653b\u51fb<\/strong><\/p>\n\n\n\n

ICMP ECHO\u8bf7\u6c42\u5305\u7528\u6765\u5bf9\u7f51\u7edc\u8fdb\u884c\u8bca\u65ad\uff0c\u5f53\u4e00\u53f0\u8ba1\u7b97\u673a\u63a5\u6536\u5230\u8fd9\u6837\u4e00\u4e2a\u62a5\u6587\u540e\uff0c\u4f1a\u5411\u62a5\u6587\u7684\u6e90\u5730\u5740\u56de\u5e94\u4e00\u4e2aICMP ECHO REPLY\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u8ba1\u7b97\u673a\u662f\u4e0d\u68c0\u67e5\u8be5ECHO\u8bf7\u6c42\u7684\u6e90\u5730\u5740\u7684\uff0c\u56e0\u6b64\uff0c\u5982\u679c\u4e00\u4e2a\u6076\u610f\u7684\u653b\u51fb\u8005\u628aECHO\u7684\u6e90\u5730\u5740\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u5e7f\u64ad\u5730\u5740\uff0c\u8fd9\u6837\u8ba1\u7b97\u673a\u5728\u6062\u590dREPLY\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u4ee5\u5e7f\u64ad\u5730\u5740\u4e3a\u76ee\u7684\u5730\u5740\uff0c\u8fd9\u6837\u672c\u5730\u7f51\u7edc\u4e0a\u6240\u6709\u7684\u8ba1\u7b97\u673a\u90fd\u5fc5\u987b\u5904\u7406\u8fd9\u4e9b\u5e7f\u64ad\u62a5\u6587\u3002\u5982\u679c\u653b\u51fb\u8005\u53d1\u9001\u7684ECHO \u8bf7\u6c42\u62a5\u6587\u8db3\u591f\u591a\uff0c\u4ea7\u751f\u7684REPLY\u5e7f\u64ad\u62a5\u6587\u5c31\u53ef\u80fd\u628a\u6574\u4e2a\u7f51\u7edc\u6df9\u6ca1\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684smurf\u653b\u51fb\u3002<\/p>\n\n\n\n

\u9664\u4e86\u628aECHO\u62a5\u6587\u7684\u6e90\u5730\u5740\u8bbe\u7f6e\u4e3a\u5e7f\u64ad\u5730\u5740\u5916\uff0c\u653b\u51fb\u8005\u8fd8\u53ef\u80fd\u628a\u6e90\u5730\u5740\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u5b50\u7f51\u5e7f\u64ad\u5730\u5740\uff0c\u8fd9\u6837\uff0c\u8be5\u5b50\u7f51\u6240\u5728\u7684\u8ba1\u7b97\u673a\u5c31\u53ef\u80fd\u53d7\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u30001.20 \u865a\u62df\u7ec8\u7aef\uff08VTY\uff09\u8017\u5c3d\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u8fd9\u662f\u4e00\u79cd\u9488\u5bf9\u7f51\u7edc\u8bbe\u5907\u7684\u653b\u51fb\uff0c\u6bd4\u5982\u8def\u7531\u5668\uff0c\u4ea4\u6362\u673a\u7b49\u3002\u8fd9\u4e9b\u7f51\u7edc\u8bbe\u5907\u4e3a\u4e86\u4fbf\u4e8e\u8fdc\u7a0b\u7ba1\u7406\uff0c\u4e00\u822c\u8bbe\u7f6e\u4e86\u4e00\u4e9bTELNET\u7528\u6237\u754c\u9762\uff0c\u5373\u7528\u6237\u53ef\u4ee5\u901a\u8fc7TELNET\u5230\u8be5\u8bbe\u5907\u4e0a\uff0c\u5bf9\u8fd9\u4e9b\u8bbe\u5907\u8fdb\u884c\u7ba1\u7406\u3002<\/p>\n\n\n\n

\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e9b\u8bbe\u5907\u7684TELNET\u7528\u6237\u754c\u9762\u4e2a\u6570\u662f\u6709\u9650\u5236\u7684\uff0c\u6bd4\u5982\uff0c5\u4e2a\u621610\u4e2a\u7b49\u3002\u8fd9\u6837\uff0c\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u540c\u65f6\u540c\u4e00\u53f0\u7f51\u7edc\u8bbe\u5907\u5efa\u7acb\u4e865\u4e2a\u621610\u4e2aTELNET\u8fde\u63a5\uff0c\u8fd9\u4e9b\u8bbe\u5907\u7684\u8fdc\u7a0b\u7ba1\u7406\u754c\u9762\u4fbf\u88ab\u5360\u5c3d\uff0c\u8fd9\u6837\u5408\u6cd5\u7528\u6237\u5982\u679c\u518d\u5bf9\u8fd9\u4e9b\u8bbe\u5907\u8fdb\u884c\u8fdc\u7a0b\u7ba1\u7406\uff0c\u5219\u4f1a\u56e0\u4e3aTELNET\u8fde\u63a5\u8d44\u6e90\u88ab\u5360\u7528\u800c\u5931\u8d25\u3002<\/p>\n\n\n\n

1.21 \u8def\u7531\u534f\u8bae\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u7f51\u7edc\u8bbe\u5907\u4e4b\u95f4\u4e3a\u4e86\u4ea4\u6362\u8def\u7531\u4fe1\u606f\uff0c\u5e38\u5e38\u8fd0\u884c\u4e00\u4e9b\u52a8\u6001\u7684\u8def\u7531\u534f\u8bae\uff0c\u8fd9\u4e9b\u8def\u7531\u534f\u8bae\u53ef\u4ee5\u5b8c\u6210\u8bf8\u5982\u8def\u7531\u8868\u7684\u5efa\u7acb\uff0c\u8def\u7531\u4fe1\u606f\u7684\u5206\u53d1\u7b49\u529f\u80fd\u3002\u5e38\u89c1\u7684\u8def\u7531\u534f\u8bae\u6709RIP\uff0cOSPF\uff0cIS-IS\uff0cBGP\u7b49\u3002\u8fd9\u4e9b\u8def\u7531\u534f\u8bae\u5728\u65b9\u4fbf\u8def\u7531\u4fe1\u606f\u7ba1\u7406\u548c\u4f20\u9012\u7684\u540c\u65f6\uff0c\u4e5f\u5b58\u5728\u4e00\u4e9b\u7f3a\u9677\uff0c\u5982\u679c\u653b\u51fb\u8005\u5229\u7528\u4e86\u8def\u7531\u534f\u8bae\u7684\u8fd9\u4e9b\u6743\u9650\uff0c\u5bf9\u7f51\u7edc\u8fdb\u884c\u653b\u51fb\uff0c\u53ef\u80fd\u9020\u6210\u7f51\u7edc\u8bbe\u5907\u8def\u7531\u8868\u7d0a\u4e71\uff08\u8fd9\u8db3\u53ef\u4ee5\u5bfc\u81f4\u7f51\u7edc\u4e2d\u65ad\uff09\uff0c\u7f51\u7edc\u8bbe\u5907\u8d44\u6e90\u5927\u91cf\u6d88\u8017\uff0c\u751a\u81f3\u5bfc\u81f4\u7f51\u7edc\u8bbe\u5907\u762b\u75ea\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u5217\u4e3e\u4e00\u4e9b\u5e38\u89c1\u8def\u7531\u534f\u8bae\u7684\u653b\u51fb\u65b9\u5f0f\u53ca\u539f\u7406\uff1a<\/p>\n\n\n\n

1.21.1 \u9488\u5bf9RIP\u534f\u8bae\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

RIP\uff0c\u5373\u8def\u7531\u4fe1\u606f\u534f\u8bae\uff0c\u662f\u901a\u8fc7\u5468\u671f\u6027\uff08\u4e00\u822c\u60c5\u51b5\u4e0b\u4e3a30S\uff09\u7684\u8def\u7531\u66f4\u65b0\u62a5\u6587\u6765\u7ef4\u62a4\u8def\u7531\u8868\u7684\uff0c\u4e00\u53f0\u8fd0\u884cRIP\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u5668\uff0c\u5982\u679c\u4ece\u4e00\u4e2a\u63a5\u53e3\u4e0a\u63a5\u6536\u5230\u4e86\u4e00\u4e2a\u8def\u7531\u66f4\u65b0\u62a5\u6587\uff0c\u5b83\u5c31\u4f1a\u5206\u6790\u5176\u4e2d\u5305\u542b\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5e76\u4e0e\u81ea\u5df1\u7684\u8def\u7531\u8868\u4f5c\u51fa\u6bd4\u8f83\uff0c\u5982\u679c\u8be5\u8def\u7531\u5668\u8ba4\u4e3a\u8fd9\u4e9b\u8def\u7531\u4fe1\u606f\u6bd4\u81ea\u5df1\u6240\u638c\u63e1\u7684\u8981\u6709\u6548\uff0c\u5b83\u4fbf\u628a\u8fd9\u4e9b\u8def\u7531\u4fe1\u606f\u5f15\u5165\u81ea\u5df1\u7684\u8def\u7531\u8868\u4e2d\u3002<\/p>\n\n\n\n

\u8fd9\u6837\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u5411\u4e00\u53f0\u8fd0\u884cRIP\u534f\u8bae\u7684\u8def\u7531\u5668\u53d1\u9001\u4e86\u4eba\u4e3a\u6784\u9020\u7684\u5e26\u7834\u574f\u6027\u7684\u8def\u7531\u66f4\u65b0\u62a5\u6587\uff0c\u5c31\u5f88\u5bb9\u6613\u7684\u628a\u8def\u7531\u5668\u7684\u8def\u7531\u8868\u641e\u7d0a\u4e71\uff0c\u4ece\u800c\u5bfc\u81f4\u7f51\u7edc\u4e2d\u65ad\u3002<\/p>\n\n\n\n

\u5982\u679c\u8fd0\u884cRIP\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u5668\u542f\u7528\u4e86\u8def\u7531\u66f4\u65b0\u4fe1\u606f\u7684HMAC\u9a8c\u8bc1\uff0c\u5219\u53ef\u4ece\u5f88\u5927\u7a0b\u5ea6\u4e0a\u907f\u514d\u8fd9\u79cd\u653b\u51fb\u3002<\/p>\n\n\n\n

1.21.2 \u9488\u5bf9OSPF\u8def\u7531\u534f\u8bae\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

OSPF\uff0c\u5373\u5f00\u653e\u6700\u77ed\u8def\u5f84\u4f18\u5148\uff0c\u662f\u4e00\u79cd\u5e94\u7528\u5e7f\u6cdb\u7684\u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae\u3002\u8be5\u8def\u7531\u534f\u8bae\u57fa\u4e8e\u94fe\u8def\u72b6\u6001\u7b97\u6cd5\uff0c\u5177\u6709\u6536\u655b\u901f\u5ea6\u5feb\uff0c\u5e73\u7a33\uff0c\u675c\u7edd\u73af\u8def\u7b49\u4f18\u70b9\uff0c\u5341\u5206\u9002\u5408\u5927\u578b\u7684\u8ba1\u7b97\u673a\u7f51\u7edc\u4f7f\u7528\u3002OSPF\u8def\u7531\u534f\u8bae\u901a\u8fc7\u5efa\u7acb\u90bb\u63a5\u5173\u7cfb\uff0c\u6765\u4ea4\u6362\u8def\u7531\u5668\u7684\u672c\u5730\u94fe\u8def\u4fe1\u606f\uff0c\u7136\u540e\u5f62\u6210\u4e00\u4e2a\u6574\u7f51\u7684\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\uff0c\u9488\u5bf9\u8be5\u6570\u636e\u5e93\uff0c\u8def\u7531\u5668\u5c31\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u8ba1\u7b97\u51fa\u8def\u7531\u8868\u3002<\/p>\n\n\n\n

\u53ef\u4ee5\u770b\u51fa\uff0c\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u5192\u5145\u4e00\u53f0\u5408\u6cd5\u8def\u7531\u5668\u4e0e\u7f51\u7edc\u4e2d\u7684\u4e00\u53f0\u8def\u7531\u5668\u5efa\u7acb\u90bb\u63a5\u5173\u7cfb\uff0c\u5e76\u5411\u653b\u51fb\u8def\u7531\u5668\u8f93\u5165\u5927\u91cf\u7684\u94fe\u8def\u72b6\u6001\u5e7f\u64ad\uff08LSA\uff0c\u7ec4\u6210\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u7684\u6570\u636e\u5355\u5143\uff09\uff0c\u5c31\u4f1a\u5f15\u5bfc\u8def\u7531\u5668\u5f62\u6210\u9519\u8bef\u7684\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\uff0c\u4ece\u800c\u5bfc\u81f4\u6574\u4e2a\u7f51\u7edc\u7684\u8def\u7531\u8868\u7d0a\u4e71\uff0c\u5bfc\u81f4\u6574\u4e2a\u7f51\u7edc\u762b\u75ea\u3002<\/p>\n\n\n\n

\u5f53\u524d\u7248\u672c\u7684WINDOWS \u64cd\u4f5c\u7cfb\u7edf\uff08WIN 2K\/XP\u7b49\uff09\u90fd\u5b9e\u73b0\u4e86OSPF\u8def\u7531\u534f\u8bae\u529f\u80fd\uff0c\u56e0\u6b64\u4e00\u4e2a\u653b\u51fb\u8005\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5229\u7528\u8fd9\u4e9b\u64cd\u4f5c\u7cfb\u7edf\u81ea\u5e26\u7684\u8def\u7531\u529f\u80fd\u6a21\u5757\u8fdb\u884c\u653b\u51fb\u3002<\/p>\n\n\n\n

\u8ddfRIP\u7c7b\u4f3c\uff0c\u5982\u679cOSPF\u542f\u7528\u4e86\u62a5\u6587\u9a8c\u8bc1\u529f\u80fd\uff08HMAC\u9a8c\u8bc1\uff09\uff0c\u5219\u53ef\u4ee5\u4ece\u5f88\u5927\u7a0b\u5ea6\u4e0a\u907f\u514d\u8fd9\u79cd\u653b\u51fb\u3002<\/p>\n\n\n\n

1.21.3 \u9488\u5bf9IS-IS\u8def\u7531\u534f\u8bae\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

IS-IS\u8def\u7531\u534f\u8bae\uff0c\u5373\u4e2d\u95f4\u7cfb\u7edf\u5230\u4e2d\u95f4\u7cfb\u7edf\uff0c\u662fISO\u63d0\u51fa\u6765\u5bf9ISO\u7684CLNS\u7f51\u7edc\u670d\u52a1\u8fdb\u884c\u8def\u7531\u7684\u4e00\u79cd\u534f\u8bae\uff0c\u8fd9\u79cd\u534f\u8bae\u4e5f\u662f\u57fa\u4e8e\u94fe\u8def\u72b6\u6001\u7684\uff0c\u539f\u7406\u4e0eOSPF\u7c7b\u4f3c\u3002IS-IS\u8def\u7531\u534f\u8bae\u7ecf\u8fc7\u6269\u5c55\uff0c\u53ef\u4ee5\u8fd0\u884c\u5728IP\u7f51\u7edc\u4e2d\uff0c\u5bf9IP\u62a5\u6587\u8fdb\u884c\u9009\u8def\u3002\u8fd9\u79cd\u8def\u7531\u534f\u8bae\u4e5f\u662f\u901a\u8fc7\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb\uff0c\u6536\u96c6\u8def\u7531\u5668\u672c\u5730\u94fe\u8def\u72b6\u6001\u7684\u624b\u6bb5\u6765\u5b8c\u6210\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u540c\u6b65\u7684\u3002\u8be5\u534f\u8bae\u7684\u90bb\u5c45\u5173\u7cfb\u5efa\u7acb\u6bd4OSPF\u7b80\u5355\uff0c\u800c\u4e14\u4e5f\u7701\u7565\u4e86OSPF\u7279\u6709\u7684\u4e00\u4e9b\u7279\u6027\uff0c\u4f7f\u8be5\u534f\u8bae\u7b80\u5355\u660e\u4e86\uff0c\u4f38\u7f29\u6027\u66f4\u5f3a\u3002<\/p>\n\n\n\n

\u5bf9\u8be5\u534f\u8bae\u7684\u653b\u51fb\u4e0eOSPF\u7c7b\u4f3c\uff0c\u901a\u8fc7\u4e00\u79cd\u6a21\u62df\u8f6f\u4ef6\u4e0e\u8fd0\u884c\u8be5\u534f\u8bae\u7684\u8def\u7531\u5668\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb\uff0c\u7136\u540e\u4f20\u9882\u7ed9\u653b\u51fb\u8def\u7531\u5668\u5927\u91cf\u7684\u94fe\u8def\u72b6\u6001\u6570\u636e\u5355\u5143\uff08LSP\uff09\uff0c\u53ef\u4ee5\u5bfc\u81f4\u6574\u4e2a\u7f51\u7edc\u8def\u7531\u5668\u7684\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u4e0d\u4e00\u81f4\uff08\u56e0\u4e3a\u6574\u4e2a\u7f51\u7edc\u4e2d\u6240\u6709\u8def\u7531\u5668\u7684\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u90fd\u9700\u8981\u540c\u6b65\u5230\u76f8\u540c\u7684\u72b6\u6001\uff09\uff0c\u4ece\u800c\u5bfc\u81f4\u8def\u7531\u8868\u4e0e\u5b9e\u9645\u60c5\u51b5\u4e0d\u7b26\uff0c\u81f4\u4f7f\u7f51\u7edc\u4e2d\u65ad\u3002<\/p>\n\n\n\n

\u4e0eOSPF\u7c7b\u4f3c\uff0c\u5982\u679c\u8fd0\u884c\u8be5\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u5668\u542f\u7528\u4e86IS-IS\u534f\u8bae\u5355\u5143\uff08PDU\uff09HMAC\u9a8c\u8bc1\u529f\u80fd\uff0c\u5219\u53ef\u4ee5\u4ece\u5f88\u5927\u7a0b\u5ea6\u4e0a\u907f\u514d\u8fd9\u79cd\u653b\u51fb\u3002<\/p>\n\n\n\n

1.22 \u9488\u5bf9\u8bbe\u5907\u8f6c\u53d1\u8868\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

\u4e3a\u4e86\u5408\u7406\u6709\u9650\u7684\u8f6c\u53d1\u6570\u636e\uff0c\u7f51\u7edc\u8bbe\u5907\u4e0a\u4e00\u822c\u90fd\u5efa\u7acb\u4e00\u4e9b\u5bc4\u5b58\u5668\u8868\u9879\uff0c\u6bd4\u5982MAC\u5730\u5740\u8868\uff0cARP\u8868\uff0c\u8def\u7531\u8868\uff0c\u5feb\u901f\u8f6c\u53d1\u8868\uff0c\u4ee5\u53ca\u4e00\u4e9b\u57fa\u4e8e\u66f4\u591a\u62a5\u6587\u5934\u5b57\u6bb5\u7684\u8868\u683c\uff0c\u6bd4\u5982\u591a\u5c42\u4ea4\u6362\u8868\uff0c\u6d41\u9879\u76ee\u8868\u7b49\u3002\u8fd9\u4e9b\u8868\u7ed3\u6784\u90fd\u5b58\u50a8\u5728\u8bbe\u5907\u672c\u5730\u7684\u5185\u5b58\u4e2d\uff0c\u6216\u8005\u82af\u7247\u7684\u7247\u4e0a\u5185\u5b58\u4e2d\uff0c\u6570\u91cf\u6709\u9650\u3002\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u901a\u8fc7\u53d1\u9001\u5408\u9002\u7684\u6570\u636e\u62a5\uff0c\u4fc3\u4f7f\u8bbe\u5907\u5efa\u7acb\u5927\u91cf\u7684\u6b64\u7c7b\u8868\u683c\uff0c\u5c31\u4f1a\u4f7f\u8bbe\u5907\u7684\u5b58\u50a8\u7ed3\u6784\u6d88\u8017\u5c3d\uff0c\u4ece\u800c\u4e0d\u80fd\u6b63\u5e38\u7684\u8f6c\u53d1\u6570\u636e\u6216\u5d29\u6e83\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u9488\u5bf9\u51e0\u79cd\u5e38\u89c1\u7684\u8868\u9879\uff0c\u4ecb\u7ecd\u5176\u653b\u51fb\u539f\u7406\uff1a<\/p>\n\n\n\n

1.22.1 \u9488\u5bf9MAC\u5730\u5740\u8868\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

MAC\u5730\u5740\u8868\u4e00\u822c\u5b58\u5728\u4e8e\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u4e0a\uff0c\u4ee5\u592a\u7f51\u901a\u8fc7\u5206\u6790\u63a5\u6536\u5230\u7684\u6570\u636e\u5e40\u7684\u76ee\u7684MAC\u5730\u5740\uff0c\u6765\u67e5\u672c\u5730\u7684MAC\u5730\u5740\u8868\uff0c\u7136\u540e\u4f5c\u51fa\u5408\u9002\u7684\u8f6c\u53d1\u51b3\u5b9a\u3002<\/p>\n\n\n\n

\u8fd9\u4e9bMAC\u5730\u5740\u8868\u4e00\u822c\u662f\u901a\u8fc7\u5b66\u4e60\u83b7\u53d6\u7684\uff0c\u4ea4\u6362\u673a\u5728\u63a5\u6536\u5230\u4e00\u4e2a\u6570\u636e\u5e40\u540e\uff0c\u6709\u4e00\u4e2a\u5b66\u4e60\u7684\u8fc7\u7a0b\uff0c\u8be5\u8fc7\u7a0b\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n

a) \u63d0\u53d6\u6570\u636e\u5e40\u7684\u6e90MAC\u5730\u5740\u548c\u63a5\u6536\u5230\u8be5\u6570\u636e\u5e40\u7684\u7aef\u53e3\u53f7\uff1b<\/p>\n\n\n\n

b) \u67e5MAC\u5730\u5740\u8868\uff0c\u770b\u8be5MAC\u5730\u5740\u662f\u5426\u5b58\u5728\uff0c\u4ee5\u53ca\u5bf9\u5e94\u7684\u7aef\u53e3\u662f\u5426\u7b26\u5408\uff1b<\/p>\n\n\n\n

c) \u5982\u679c\u8be5MAC\u5730\u5740\u5728\u672c\u5730MAC\u5730\u5740\u8868\u4e2d\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\u4e00\u4e2aMAC\u5730\u5740\u8868\u9879\uff1b<\/p>\n\n\n\n

d) \u5982\u679c\u5b58\u5728\uff0c\u4f46\u5bf9\u5e94\u7684\u51fa\u7aef\u53e3\u8ddf\u63a5\u6536\u5230\u8be5\u6570\u636e\u5e40\u7684\u7aef\u53e3\u4e0d\u7b26\uff0c\u5219\u66f4\u65b0\u8be5\u8868\uff1b<\/p>\n\n\n\n

e) \u5982\u679c\u5b58\u5728\uff0c\u4e14\u7aef\u53e3\u7b26\u5408\uff0c\u5219\u8fdb\u884c\u4e0b\u4e00\u6b65\u5904\u7406\u3002<\/p>\n\n\n\n

\u5206\u6790\u8fd9\u4e2a\u8fc7\u7a0b\u53ef\u4ee5\u770b\u51fa\uff0c\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u5411\u4e00\u53f0\u4ea4\u6362\u673a\u53d1\u9001\u5927\u91cf\u6e90MAC\u5730\u5740\u4e0d\u540c\u7684\u6570\u636e\u5e40\uff0c\u5219\u8be5\u4ea4\u6362\u673a\u5c31\u53ef\u80fd\u628a\u81ea\u5df1\u672c\u5730\u7684MAC\u5730\u5740\u8868\u5b66\u6ee1\u3002\u4e00\u65e6MAC\u5730\u5740\u8868\u6ea2\u51fa\uff0c\u5219\u4ea4\u6362\u673a\u5c31\u4e0d\u80fd\u7ee7\u7eed\u5b66\u4e60\u6b63\u786e\u7684MAC\u8868\u9879\uff0c\u7ed3\u679c\u662f\u53ef\u80fd\u4ea7\u751f\u5927\u91cf\u7684\u7f51\u7edc\u5197\u4f59\u6570\u636e\uff0c\u751a\u81f3\u53ef\u80fd\u4f7f\u4ea4\u6362\u673a\u5d29\u6e83\u3002<\/p>\n\n\n\n

\u800c\u6784\u9020\u4e00\u4e9b\u6e90MAC\u5730\u5740\u4e0d\u540c\u7684\u6570\u636e\u5e40\uff0c\u662f\u975e\u5e38\u5bb9\u6613\u7684\u4e8b\u60c5\u3002<\/p>\n\n\n\n

\u30001.22.2 \u9488\u5bf9ARP\u8868\u7684\u653b\u51fb<\/strong><\/p>\n\n\n\n

ARP\u8868\u662fIP\u5730\u5740\u548cMAC\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\u8868\uff0c\u4efb\u4f55\u5b9e\u73b0\u4e86IP\u534f\u8bae\u6808\u7684\u8bbe\u5907\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u90fd\u901a\u8fc7\u8be5\u8868\u7ef4\u62a4IP\u5730\u5740\u548cMAC\u5730\u5740\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u8fd9\u662f\u4e3a\u4e86\u907f\u514dARP\u89e3\u6790\u800c\u9020\u6210\u7684\u5e7f\u64ad\u6570\u636e\u62a5\u6587\u5bf9\u7f51\u7edc\u9020\u6210\u51b2\u51fb\u3002ARP\u8868\u7684\u5efa\u7acb\u4e00\u822c\u60c5\u51b5\u4e0b\u662f\u901a\u8fc7\u4e8c\u4e2a\u9014\u5f84\uff1a<\/p>\n\n\n\n

1\u3001\u4e3b\u52a8\u89e3\u6790\uff0c\u5982\u679c\u4e00\u53f0\u8ba1\u7b97\u673a\u60f3\u4e0e\u53e6\u5916\u4e00\u53f0\u4e0d\u77e5\u9053MAC\u5730\u5740\u7684\u8ba1\u7b97\u673a\u901a\u4fe1\uff0c\u5219\u8be5\u8ba1\u7b97\u673a\u4e3b\u52a8\u53d1ARP\u8bf7\u6c42\uff0c\u901a\u8fc7ARP\u534f\u8bae\u5efa\u7acb\uff08\u524d\u63d0\u662f\u8fd9\u4e24\u53f0\u8ba1\u7b97\u673a\u4f4d\u4e8e\u540c\u4e00\u4e2aIP\u5b50\u7f51\u4e0a\uff09\uff1b<\/p>\n\n\n\n

2\u3001\u88ab\u52a8\u8bf7\u6c42\uff0c\u5982\u679c\u4e00\u53f0\u8ba1\u7b97\u673a\u63a5\u6536\u5230\u4e86\u4e00\u53f0\u8ba1\u7b97\u673a\u7684ARP\u8bf7\u6c42\uff0c\u5219\u9996\u5148\u5728\u672c\u5730\u5efa\u7acb\u8bf7\u6c42\u8ba1\u7b97\u673a\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u7684\u5bf9\u5e94\u8868\u3002<\/p>\n\n\n\n

\u56e0\u6b64\uff0c\u5982\u679c\u4e00\u4e2a\u653b\u51fb\u8005\u901a\u8fc7\u53d8\u6362\u4e0d\u540c\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\uff0c\u5411\u540c\u4e00\u53f0\u8bbe\u5907\uff0c\u6bd4\u5982\u4e09\u5c42\u4ea4\u6362\u673a\u53d1\u9001\u5927\u91cf\u7684ARP\u8bf7\u6c42\uff0c\u5219\u88ab\u653b\u51fb\u8bbe\u5907\u53ef\u80fd\u4f1a\u56e0\u4e3aARP\u7f13\u5b58\u6ea2\u51fa\u800c\u5d29\u6e83\u3002<\/p>\n\n\n\n

\u9488\u5bf9ARP\u8868\u9879\uff0c\u8fd8\u6709\u4e00\u4e2a\u53ef\u80fd\u7684\u653b\u51fb\u5c31\u662f\u8bef\u5bfc\u8ba1\u7b97\u673a\u5efa\u7acb\u6b63\u786e\u7684ARP\u8868\u3002\u6839\u636eARP\u534f\u8bae\uff0c\u5982\u679c\u4e00\u53f0\u8ba1\u7b97\u673a\u63a5\u6536\u5230\u4e86\u4e00\u4e2aARP\u8bf7\u6c42\u62a5\u6587\uff0c\u5728\u6ee1\u8db3\u4e0b\u5217\u4e24\u4e2a\u6761\u4ef6\u7684\u60c5\u51b5\u4e0b\uff0c\u8be5\u8ba1\u7b97\u673a\u4f1a\u7528ARP\u8bf7\u6c42\u62a5\u6587\u4e2d\u7684\u6e90IP\u5730\u5740\u548c\u6e90MAC\u5730\u5740\u66f4\u65b0\u81ea\u5df1\u7684ARP\u7f13\u5b58\uff1a<\/p>\n\n\n\n

1\u3001 \u5982\u679c\u53d1\u8d77\u8be5ARP\u8bf7\u6c42\u7684IP\u5730\u5740\u5728\u81ea\u5df1\u672c\u5730\u7684ARP\u7f13\u5b58\u4e2d\uff1b<\/p>\n\n\n\n

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