{"id":82,"date":"2010-12-10T10:37:23","date_gmt":"2010-12-10T02:37:23","guid":{"rendered":"http:\/\/www.microwolf.net\/?p=82"},"modified":"2010-12-10T10:37:23","modified_gmt":"2010-12-10T02:37:23","slug":"linux-%e7%8e%af%e5%a2%83%e4%b8%8b%e5%9f%ba%e4%ba%8e%e7%ad%96%e7%95%a5%e7%9a%84%e8%b7%af%e7%94%b1","status":"publish","type":"post","link":"http:\/\/www.microwolf.net\/?p=82","title":{"rendered":"Linux \u73af\u5883\u4e0b\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531"},"content":{"rendered":"\n\n
Linux\u73af\u5883\u4e0b\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531
\n \u6765\u6e90\uff1aChinaitlab
\n 2002-12-13 22:44:00 <\/p>\n

<\/p>\n

\u3000\u3000\u539f\u6587\u4f5c\u8005\uff1aMatthew G. Marsh

\n \u3000\u3000\u6458\u8981
\n \u3000\u3000\u3000\u3000\u672c\u6587\u4ee5\u5927\u91cf\u5b9e\u4f8b\u4e3a\u57fa\u7840\u4ecb\u7ecd\u4e86\u57fa\u4e8eLinux2.2\u7684\u5f3a\u5927\u8def\u7531\u529f\u80fd\uff0c\u5b83\u63d0\u4f9b\u7684\u8def\u7531\u529f\u80fd\u662f\u5f88\u591a\u8def\u7531\u5668\u4ea7\u54c1\u90fd\u662f\u96be\u4ee5\u5339\u654c\u7684\uff0c\u5982\u679c\u8003\u8651\u5230\u5b83\u7684\u514d\u8d39\u6027\uff0c\u5b83\u7684\u6027\u80fd\u4ef7\u683c\u6bd4\u66f4\u662f\u6ca1\u6709\u4efb\u4f55\u4ea7\u54c1\u53ef\u4ee5\u76f8\u6bd4\u3002
\n \u3000\u3000
\n \u3000\u3000\u76ee\u524d\u5728\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u4f7f\u7528\u7684\u4f20\u7edf\u8def\u7531\u7b97\u6cd5\u90fd\u662f\u6839\u636eIP\u5305\u76ee\u7684\u5730\u5740\u8fdb\u884c\u8def\u7531\u9009\u62e9.\u7136\u800c\u5728\u73b0\u5b9e\u5e94\u7528\u4e2d\u7ecf\u5e38\u6709\u8fd9\u6837\u7684\u9700\u6c42\uff1a\u8fdb\u884c\u8def\u7531\u9009\u62e9\u65f6\u4e0d\u4ec5\u4ec5\u6839\u636e\u6570\u636e\u62a5\u7684\u76ee\u7684\u5730\u5740\uff0c\u800c\u4e14\u6839\u636e\u6570\u636e\u62a5\u7684\u5176\u4ed6\u4e00\u4e9b\u7279\u6027\u5982\uff1a\u6e90\u5730\u5740\u3001IP\u534f\u8bae\u3001\u4f20\u8f93\u5c42\u7aef\u53e3\uff0c\u751a\u81f3\u662f\u6570\u636e\u5305\u7684\u8d1f\u8f7d\u90e8\u5206\u5185\u5bb9\uff0c\u8fd9\u79cd\u7c7b\u578b\u7684\u8def\u7531\u9009\u62e9\u88ab\u79f0\u4f5c\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5728Linux\u4e2d\uff0c\u4ece2.1\u7248\u672c\u7684\u5185\u6838\u5f00\u59cb\u5c31\u5b9e\u73b0\u4e86\u5bf9\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531\u7684\u652f\u6301\uff0c\u5b83\u662f\u901a\u8fc7\u4f7f\u7528\u8def\u7531\u7b56\u7565\u6570\u636e\u5e93(RPDB\uff0crouting policy database)\u66ff\u4ee3\u4f20\u7edf\u7684\u3001\u57fa\u4e8e\u76ee\u7684\u5730\u5740\u7684\u8def\u7531\u8868\u6765\u5b9e\u73b0\u7684\u3002RPDB\u901a\u8fc7\u5305\u542b\u7684\u4e00\u4e9b\u89c4\u5219\u6765\u9009\u5b9a\u5408\u9002\u7684IP\u8def\u7531\u3002\u8fd9\u4e9b\u89c4\u5219\u53ef\u80fd\u4f1a\u5305\u542b\u5f88\u591a\u5404\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u5065\u503c(key)\uff0c\u56e0\u6b64\u8fd9\u4e9b\u89c4\u5219\u6ca1\u6709\u9ed8\u8ba4\u7684\u7279\u5b9a\u6b21\u5e8f\uff0c\u89c4\u5219\u67e5\u627e\u6b21\u5e8f\u6216\u89c4\u5219\u4f18\u5148\u7ea7\u90fd\u662f\u7531\u7f51\u7edc\u6216\u7cfb\u7edf\u7ba1\u7406\u5458\u8bbe\u5b9a\u7684\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000Linux\u7684RPDB\u662f\u4e00\u4e2a\u7531\u6570\u5b57\u4f18\u5148\u7ea7\u503c\u8fdb\u884c\u6392\u5e8f\u7684\u7ebf\u6027\u89c4\u5219\u5217\u8868\u3002RPDB\u80fd\u5339\u914d\u6570\u636e\u62a5\u6e90\u5730\u5740\u3001\u76ee\u7684\u5730\u5740\u3001TOS\u3001\u8fdb\u5165\u63a5\u548cfwmark\u503c\u7b49\u3002\u6bcf\u4e2a\u8def\u7531\u7b56\u7565\u89c4\u5219\u7531\u4e00\u4e2a\u9009\u62e9\u5668\u548c\u4e00\u4e2a\u52a8\u4f5c\u6307\u793a\u7ec4\u6210\u3002RPDB\u6309\u7167\u4f18\u5148\u7ea7\u9012\u589e\u7684\u987a\u5e8f\u88ab\u626b\u63cf\uff0cRPDB\u5305\u542b\u7684\u6bcf\u6761\u89c4\u5219\u7684\u9009\u62e9\u5668\u88ab\u5e94\u7528\u4e8e\u6570\u636e\u62a5\u7684\u6e90\u5730\u5740\u3001\u76ee\u7684\u5730\u5740\u3001\u8fdb\u5165\u63a5\u53e3\u3001TOS\u548cfwmark\u503c\u3002\u82e5\u6570\u636e\u62a5\u5339\u914d\u8be5\u89c4\u5219\u5bf9\u5e94\u4e8e\u8be5\u89c4\u5219\u7684\u52a8\u4f5c\u88ab\u6267\u884c\u3002\u82e5\u52a8\u4f5c\u6210\u529f\u8fd4\u56de\uff0c\u5219\u89c4\u5219\u8f93\u51fa\u5c06\u662f\u4e00\u4e2a\u6709\u6548\u7684\u8def\u7531\u6216\u662f\u8def\u7531\u67e5\u627e\u5931\u8d25\u6307\u793a\uff1b\u5426\u5219\u67e5\u627eRPDB\u7684\u4e0b\u4e00\u6761\u89c4\u5219\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5f53\u9009\u62e9\u5668\u548c\u4e00\u4e2a\u6570\u636e\u62a5\u5339\u914d\u6210\u529f\uff0c\u4f1a\u6267\u884c\u54ea\u4e9b\u52a8\u4f5c\u5462\uff1f\u8def\u7531\u8f6f\u4ef6\u7684\u6807\u51c6\u52a8\u4f5c\u4e00\u822c\u662f\u9009\u62e9\u4e0b\u4e00\u8df3\u5730\u5740\u548c\u8f93\u51fa\u63a5\u53e3,\u53ef\u4ee5\u79f0\u8fd9\u79cd\u52a8\u4f5c\u4e3a\u201c\u5339\u914d&\u8bbe\u7f6e\u201d\u7c7b\u578b\u52a8\u4f5c\u3002\u7136\u800cLinux\u91c7\u53d6\u4e86\u66f4\u52a0\u7075\u6d3b\u7684\u65b9\u6cd5\uff0c\u5728Linux\u4e2d\u6709\u591a\u79cd\u52a8\u4f5c\u53ef\u4f9b\u9009\u62e9\u3002\u9ed8\u8ba4\u7684\u52a8\u4f5c\u662f\u67e5\u8be2\u7279\u5b9a\u7684\u57fa\u4e8e\u76ee\u7684\u5730\u5740\u7684\u8def\u7531\u8868\u3002\u56e0\u6b64\u201c\u5339\u914d&\u8bbe\u7f6e\u201d\u52a8\u4f5c\u5c31\u6210\u4e3aLinux\u8def\u7531\u9009\u62e9\u7684\u6700\u7b80\u5355\u60c5\u51b5\u3002Linux\u652f\u6301\u591a\u4e2a\u8def\u7531\u8868\uff0c\u6bcf\u4e2a\u8def\u7531\u8868\u90fd\u5305\u542b\u591a\u6761\u8def\u7531\u4fe1\u606f\u3002\u4e5f\u5c31\u662fLinux\u7684\u6bcf\u4e2a\u8def\u7531\u8868\u90fd\u76f8\u5f53\u4e8e\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u7684\u7cfb\u7edf\u8def\u7531\u8868\u3002Linux\u652f\u6301\u591a\u8fbe255\u4e2a\u8def\u7531\u8868\u3002(Linux 2.2.12 \u652f\u6301255\u4e2a\u8def\u7531\u8868\uff0c255\u4e2a\u6c47\u805a\u57df\u548c232\u4e2a\u7b56\u7565\u89c4\u5219\u4f18\u5148\u7ea7 (4294967296 decimal) \u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5bf9\u4e8eLinux2.1\/2.2\uff0c\u542f\u52a8\u65f6\u5185\u6838\u5c06\u5305\u542b\u4e00\u4e2a\u7531\u4e09\u6761\u7b56\u7565\u89c4\u5219\u7ec4\u6210\u7684\u9ed8\u8ba4\u7684RPDB\uff0c\u5bdf\u770b\u8fd9\u4e9b\u9ed8\u8ba4\u89c4\u5219\u7684\u4e00\u4e2a\u65b9\u6cd5\u662f\u4f7f\u7528\u547d\u4ee4\u6765\u5217\u51fa\u7cfb\u7edf\u7684\u6240\u6709\u89c4\u5219\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster ip rule list

\n \u3000\u3000\u30000:\u3000\u3000\u3000from all lookup local

\n \u3000\u3000\u300032766:\u3000from all lookup main

\n \u3000\u3000\u300032767:\u3000from all lookup default

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u7684\u9ed8\u8ba4\u89c4\u5219\u5728\u5bf9\u4e8e\u7406\u89e3\u542f\u52a8\u590d\u6742\u8def\u7531\u7cfb\u7edf\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u9996\u5148\u662f\u6700\u9ad8\u7ea7\u522b\u7684\u4f18\u5148\u7ea7\u89c4\u5219\uff0c\u89c4\u5219\u7b56\u75650\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u89c4\u52190: \u4f18\u5148\u7ea7 0\u3000\u3000 \u9009\u62e9\u5668 = \u5339\u914d\u4efb\u4f55\u6570\u636e\u62a5

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u52a8\u4f5c\uff1d\u5bdf\u770b\u672c\u5730\u8def\u7531\u8868(routing table local)\uff0cID\u4e3a255\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000local\u8868\u662f\u4fdd\u7559\u8def\u7531\u8868\uff0c\u5305\u542b\u4e86\u5230\u672c\u5730\u548c\u5e7f\u64ad\u5730\u5740\u7684\u8def\u7531\u3002\u89c4\u52190\u662f\u7279\u6b8a\u7684\u89c4\u5219\uff0c\u4e0d\u53ef\u88ab\u5220\u9664\u6216\u4fee\u6539\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u89c4\u5219 32766: \u4f18\u5148\u7ea7 32766\u3000\u3000 \u9009\u62e9\u5668 = \u5339\u914d\u6240\u6709\u6570\u636e\u62a5

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u52a8\u4f5c = \u5bdf\u770b\u4e3b\u8def\u7531\u8868(routing table main)\uff0c ID\u4e3a254\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000main\u8def\u7531\u8868\u662f\u9ed8\u8ba4\u7684\u6807\u51c6\u8def\u7531\u8868\uff0c\u5176\u5305\u542b\u6240\u6709\u975e\u7b56\u7565\u8def\u7531\uff0cmain\u8868\u662f\u5b58\u653e\u65e7\u7684\u8def\u7531\u547d\u4ee4(route\u547d\u4ee4)\u521b\u5efa\u7684\u8def\u7531\u3002\u800c\u4e14\u4efb\u4f55\u7531ip route\u547d\u4ee4\u521b\u5efa\u7684\u6ca1\u6709\u660e\u786e\u6307\u5b9a\u8def\u7531\u8868\u7684\u8def\u7531\u90fd\u88ab\u52a0\u5165\u5230\u8be5\u8def\u7531\u8868\u4e2d\u3002\u8be5\u89c4\u5219\u4e0d\u80fd\u88ab\u5220\u9664\u548c\u88ab\u5176\u4ed6\u89c4\u5219\u8986\u76d6\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u89c4\u5219 32767: \u4f18\u5148\u7ea7 32767 \u9009\u62e9\u5668 = \u5339\u914d\u6240\u6709\u6570\u636e\u62a5

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u52a8\u4f5c = \u5bdf\u770b\u9ed8\u8ba4\u8def\u7531\u8868(routing table default)\uff0cID\u4e3a253\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000default\u8def\u7531\u8868\u662f\u7a7a\u7684\uff0c\u4e3a\u6700\u540e\u5904\u7406(post-processing)\u6240\u9884\u7559\uff0c\u82e5\u524d\u9762\u7684\u9ed8\u8ba4\u89c4\u5219\u6ca1\u6709\u9009\u62e9\u8be5\u6570\u636e\u62a5\u65f6\u4fdd\u7559\u7528\u4f5c\u6700\u540e\u7684\u5904\u7406\u3002\u8be5\u89c4\u5219\u53ef\u4ee5\u88ab\u5220\u9664\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0d\u8981\u5c06\u8def\u7531\u8868\u548c\u89c4\u5219\u6df7\u6dc6\uff0c\u89c4\u5219\u662f\u6307\u5411\u8def\u7531\u8868\u7684\u3002\u4e5f\u8bb8\u4f1a\u51fa\u73b0\u591a\u4e2a\u89c4\u5219\u6307\u5411\u540c\u4e00\u4e2a\u8def\u7531\u8868\uff0c\u800c\u6709\u4e9b\u8def\u7531\u8868\u53ef\u80fd\u5e76\u4e0d\u88ab\u4efb\u4f55\u89c4\u5219\u6307\u5411\u3002\u5982\u679c\u5220\u9664\u4e86\u6307\u5411\u67d0\u4e2a\u8def\u7531\u8868\u7684\u6240\u6709\u89c4\u5219\uff0c\u5219\u8be5\u8868\u5c06\u4e0d\u53d1\u751f\u4f5c\u7528\uff0c\u4f46\u662f\u8868\u5c06\u4ecd\u7136\u5b58\u5728\u3002\u4e00\u4e2a\u8def\u7531\u8868\u53ea\u6709\u5728\u5176\u4e2d\u5305\u542b\u7684\u6240\u6709\u8def\u7531\u4fe1\u606f\u88ab\u5220\u9664\u624d\u4f1a\u6d88\u5931\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u524d\u9762\u63d0\u5230\uff0cLinux\u7b56\u7565\u89c4\u5bf9\u5e94\u7684\u52a8\u4f5c\u9664\u4e86\u6307\u5411\u4e00\u4e2a\u8def\u7531\u8868\u4ee5\u5916\u8fd8\u80fd\u662f\u82e5\u5e72\u79cd\u4e0d\u540c\u7684\u52a8\u4f5c\u3002\u5f53\u521b\u5efa\u4e00\u4e2a\u7b56\u7565\u89c4\u5219\uff0c\u6709\u5982\u4e0b\u7c7b\u578b\u7684\u52a8\u4f5c\u53ef\u4ee5\u9009\u62e9\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000unicast — \u5728\u8be5\u89c4\u5219\u6307\u5411\u7684\u8def\u7531\u8868\u4e2d\u8fdb\u884c\u6807\u51c6\u7684\u8def\u7531\u67e5\u627e\u3002\u5f53\u4e00\u4e2a\u8def\u7531\u8868\u88ab\u6307\u5b9a\uff0c\u8fd9\u662f\u9ed8\u8ba4\u7684\u52a8\u4f5c\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000blackhole — \u89c4\u5219\u52a8\u4f5c\u5c06\u4ec5\u4ec5\u76f4\u63a5\u4e22\u5f03\u8be5\u6570\u636e\u62a5\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000unreachable — \u89c4\u5219\u52a8\u4f5c\u4ea7\u751f\u4e00\u6761\u7f51\u7edc\u4e0d\u53ef\u8fbe\u9519\u8bef\u4fe1\u606f\uff0c\u4e00\u4e2a\u7c7b\u578b\u4e3a3\uff0c\u4ee3\u7801\u4e3a0\u7684ICMP\u6d88\u606f\u88ab\u8fd4\u56de\u7ed9\u53d1\u9001\u8005\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000prohibit — \u89c4\u5219\u52a8\u4f5c\u4ea7\u751f\u4e00\u4e2a\u901a\u4fe1\u88ab\u7981\u6b62\u7684\u9519\u8bef\u6d88\u606f\uff0c\u4e00\u4e2a\u7c7b\u578b\u4e3a3\uff0c\u4ee3\u7801\u4e3a13\u7684ICMP\u6d88\u606f\u88ab\u8fd4\u56de\u7ed9\u53d1\u9001\u8005\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5176\u4ed6\u7c7b\u578b\u7684\u52a8\u4f5c\u4e5f\u53ef\u4ee5\u88ab\u4f7f\u7528\uff0c\u4f46\u662f\u90fd\u548c\u7b56\u7565\u8def\u7531\u6ca1\u6709\u5173\u7cfb\u3002\u5b83\u4eec\u88ab\u7528\u6765\u5728\u5185\u6838\u4e2d\u5b9e\u73b0\u5176\u4ed6\u9ad8\u7ea7\u6d41\u63a7\u5236\u548c\u6570\u636e\u62a5\u64cd\u4f5c\u3002\u56e0\u4e3a\u53ea\u6709\u4e00\u4e2a\u5de5\u5177\u547d\u4ee4\uff1aip\uff0c\u6240\u6709\u7684\u8fd9\u4e9b\u7c7b\u578b\u90fd\u662f\u53ef\u8fd0\u7528\u4e8e\u8be5\u547d\u4ee4\uff0c\u4f46\u6211\u4eec\u4ec5\u4ec5\u4f7f\u7528\u548c\u4e0a\u9762\u6709\u5173\u7684\u90e8\u5206\uff0c\u53ef\u4ee5\u662f\u8fd4\u56de\u4e00\u6761\u8def\u7531\u6216\u5176\u4ed6\u82e5\u5e72\u4e2a\u52a8\u4f5c\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5728\u89e3\u91ca\u793a\u4f8b\u4ee5\u524d\uff0c\u9996\u5148\u770b\u770bip\u5de5\u5177\u547d\u4ee4\u7684\u8bed\u6cd5\u3002ip\u547d\u4ee4\u53ef\u4ee5\u7528\u5728\u5f88\u591a\u5730\u65b9\uff0c\u8fd9\u91cc\u4ec5\u4ec5\u8ba8\u8bba\u548c\u7b56\u7565\u8def\u7531\u76f8\u5173\u7684\u90e8\u5206\u3002\u90fd\u662f\u7531root\u5728\u547d\u4ee4\u884c\u76f4\u63a5\u8fd0\u884c\u7684\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u9996\u5148\uff0c\u770bip addr\u547d\u4ee4\u8bed\u6cd5\uff1a

\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster# ip addr help

\n \u3000\u3000\u3000Usage: ip addr {add|del} IFADDR dev STRING

\n \u3000\u3000\u3000\u3000\u3000\u3000 ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]

\n \u3000\u3000\u3000IFADDR := PREFIX | ADDR peer PREFIX

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ broadcast ADDR ] [ anycast ADDR ]

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ label STRING ] [ scope SCOPE-ID ]

\n \u3000\u3000\u3000SCOPE-ID := [ host | link | global | NUMBER ]

\n \u3000\u3000\u3000FLAG-LIST := [ FLAG-LIST ] FLAG

\n \u3000\u3000\u3000FLAG\u3000:= [ permanent | dynamic | secondary | primary |

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000 tentative | deprecated ]

\n \u3000\u3000
\n \u3000\u3000\u3000Example – ip addr add 192.168.1.1\/24 dev eth0

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8be5\u547d\u4ee4\u5c06\u6dfb\u52a0IP\u5730\u5740192.168.2.2\/24\u5230eth0\u7f51\u5361\u4e0a.
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u770b\u770bip route\u547d\u4ee4\uff1a

\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster# ip route help

\n \u3000\u3000\u3000Usage: ip route { list | flush } SELECTOR

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000ip route get ADDRESS [ from ADDRESS iif STRING ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ oif STRING ] [ tos TOS ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000ip route { add | del | replace | change | append | replace |\u3000
\n \u3000\u3000\u3000
\n \u3000\u3000\u3000monitor} ROUTE

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000SELECTOR := [ root PREFIX ] [ match PREFIX ] [ exact PREFIX ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ table TABLE_ID ] [ proto RTPROTO ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ type TYPE ] [ scope SCOPE ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000ROUTE := NODE_SPEC [ INFO_SPEC ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ table TABLE_ID ] [ proto RTPROTO ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ scope SCOPE ] [ metric METRIC ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000INFO_SPEC := NH OPTIONS FLAGS [ nexthop NH ]…

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000NH := [ via ADDRESS ] [ dev STRING ] [ weight NUMBER ] NHFLAGS

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ rtt NUMBER ] [ rttvar NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ window NUMBER] [ cwnd NUMBER ] [ ssthresh REALM ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000[ realms REALM ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000TYPE := [ unicast | local | broadcast | multicast | throw |

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000unreachable | prohibit | blackhole | nat ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000TABLE_ID := [ local | main | default | all | NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000SCOPE := [ host | link | global | NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000FLAGS := [ equalize ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000NHFLAGS := [ onlink | pervasive ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000RTPROTO := [ kernel | boot | static | NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000Example – ip route add 192.168.2.0\/24 via 192.168.1.254

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8be5\u793a\u4f8b\u5c06\u6dfb\u52a0\u4e00\u6761\u901a\u8fc7192.168.1.254\u5230\u7f51\u7edc192.168.2.0\/24\u7684\u8def\u7531\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u6700\u540e\uff0c\u770b\u770bip rule\u547d\u4ee4\uff1a

\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster# ip rule help

\n \u3000\u3000\u3000Usage: ip rule [ list | add | del ] SELECTOR ACTION

\n \u3000\u3000\u3000SELECTOR := [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK ]

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ dev STRING ] [ pref NUMBER ]

\n \u3000\u3000\u3000ACTION := [ table TABLE_ID ] [ nat ADDRESS ]

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ prohibit | reject | unreachable ]

\n \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[ realms [SRCREALM\/]DSTREALM ]

\n \u3000\u3000\u3000TABLE_ID := [ local | main | default | NUMBER ]

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000Example – ip rule add from 192.168.2.0\/24 prio 32777 reject

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8be5\u547d\u4ee4\u5c06\u4e22\u5f03\u6e90\u5730\u5740\u5c5e\u4e8e192.168.2.0\/24\u7f51\u7edc\u7684\u6240\u6709\u6570\u636e\u62a5\u3002<\/p>\n

ip rule add fwmark 0x1 table fw<\/p>\n

\u8be5\u547d\u4ee4\u4f7f\u6709fwmark\u4e3a0x1\u7684\u8def\u7531\u4f7f\u7528table
\n fw\uff0c\u8fd9\u9996\u5148\u9700\u8981\u5728iptables\u4e2d\u52a0\u5165
\n \u3000\u3000iptables -t mangle -A PREROUTING -s 192.168.0.0\/255.255.0.0 -p tcp -m tcp –dport 80 -j MARK –set-mark 0x1

\n \u3000\u3000\u3000\u3000\u5728\u8ba8\u8bba\u4e86\u547d\u4ee4\u8bed\u6cd5\u4ee5\u540e\uff0c\u4e0b\u9762\u662f\u4e00\u4e9b\u4e0a\u9762\u547d\u4ee4\u7684\u793a\u4f8b\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b 1\uff1a\u62d2\u7edd\u8bbf\u95eeInternet

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5047\u8bbe\u6709\u4e00\u4e2a\u9632\u706b\u5899\u8fde\u63a5\u672c\u5730\u5c40\u57df\u7f51\u548cInternet\uff0c\u4f60\u5e0c\u671b\u7981\u6b62\u5c40\u57df\u7f51\u7684\u4e00\u4e2a\u5b50\u7f51\u8bbf\u95eeInternet\u3002\u5f53\u7136\u8fd9\u53ef\u4ee5\u901a\u8fc7Linux\u6570\u636e\u62a5\u8fc7\u6ee4\u9632\u706b\u5899\u6765\u5b9e\u73b0\u3002\u4f46\u662f\u4e0b\u9762\u6211\u4eec\u5c06\u4ecb\u7ecd\u53e6\u5916\u4e00\u79cd\u5b9e\u73b0\u65b9\u6cd5\u3002\u9996\u5148\u6211\u4eec\u6765\u5047\u8bbe\u6709\u5982\u4e0b\u7684\u7f51\u7edc\u914d\u7f6e\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5185\u90e8\u7f51\u7edc\u5730\u5740\u3000\u3000\u3000\u3000\u3000 192.168.0.0\/16

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u88ab\u62d2\u7edd\u8bbf\u95ee\u7684\u5b50\u7f51\u3000\u3000\u3000\u3000192.168.2.0\/24
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5f53\u524d\u4e3b\u8def\u7531\u8868(Routing Table Main,\u8868254):

\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster# ip route list table 254

\n \u3000\u3000\u3000
\n \u3000\u3000\u3000default via 192.168.254.254 dev eth0 proto static

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u5c06\u9488\u5bf9\u8be5\u5b50\u7f51\u521b\u5efa\u4e00\u6761\u7b56\u7565\u8def\u7531\u89c4\u5219\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip rule add from 192.168.2.0\/24 priority 5000 prohibit

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u73b0\u5728\u4efb\u4f55\u4ece192.168.2.0\/24\u5b50\u7f51\u53d1\u9001\u6765\u7684\u6570\u636e\u62a5\u5c06\u5f97\u5230\u4e00\u4e2a\u7c7b\u578b\u4e3a3\uff0c\u4ee3\u7801\u4e3a13\u7684ICMP\u6d88\u606f\uff0c\u540c\u65f6\u8be5\u6570\u636e\u62a5\u5c06\u88ab\u4e22\u5f03\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5e94\u8be5\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fd0\u884c\u4efb\u4f55\u8fd9\u4e9b\u547d\u4ee4\u90fd\u9700\u8981\u53d1\u9001\u201cip route flush cache”\u547d\u4ee4\u6765\u5237\u65b0\u8def\u7531\u7f13\u51b2\uff0c\u5426\u5219\u547d\u4ee4\u5728\u4e00\u6bb5\u65f6\u95f4\u4ee5\u540e\u624d\u4f1a\u751f\u6548\uff0c\u8fd9\u6bb5\u65f6\u95f4\u7684\u957f\u77ed\u4f9d\u8d56\u4e8e\u8def\u7531\u8868\u7ed3\u6784\u7684\u5927\u5c0f\u548c\u8d1f\u8f7d\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5c06\u4e0a\u9762\u7684\u4f8b\u5b50\u9700\u8981\u7684\u547d\u4ee4\u653e\u5728\u4e00\u8d77\u5c31\u5982\u4e0b\u6240\u793a\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip rule del priority 5000

\n \u3000\u3000\u3000ip rule add from 192.168.2.0\/24 priority 5000 prohibit

\n \u3000\u3000\u3000ip route flush cache

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8fd9\u4e2a\u547d\u4ee4\u6d41\u901a\u8fc7\u9996\u5148\u5220\u96645000\u53f7\u89c4\u5219\u6765\u786e\u4fdd\u5f53\u524d\u7cfb\u7edf\u6ca1\u6709\u8be5\u89c4\u5219\u7136\u540e\u518d\u6dfb\u52a0\u65b0\u76845000\u53f7\u89c4\u5219\u3002\u5982\u679c\u7cfb\u7edf\u672c\u6765\u4e0d\u5b58\u57285000\u53f7\u7684\u89c4\u5219\u5219\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\u3002\u7136\u540e\u6dfb\u52a05000\u53f7\u89c4\u5219\u5e76\u901a\u8fc7\u6e05\u7a7a\u8fd0\u884c\u65f6\u7684\u8def\u7531\u7f13\u5b58\u6765\u91cd\u7f6eRPDB\uff0c\u5219\u65b0\u89c4\u5219\u5c06\u9a6c\u4e0a\u4ea7\u751f\u4f5c\u7528\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u591a\u8def\u7531\u8868\u548cIP\u5730\u5740
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e3a\u4e86\u5b8c\u5168\u7406\u89e3\u57fa\u4e8e\u7b56\u7565\u8def\u7531\u7684\u4f7f\u7528\uff0c\u5c31\u9700\u8981\u5b66\u4f1a\u4f7f\u7528Linux\u591a\u8def\u7531\u8868\u548cIP\u5730\u5740\uff0c\u8fd9\u5305\u62ec\u591a\u4e2a\u65b9\u9762\u7684\u77e5\u8bc6\uff0c\u4e0b\u9762\u901a\u8fc7\u793a\u4f8b\u6765\u52a0\u4ee5\u8bf4\u660e\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5f53\u83b7\u5f97ip\u5de5\u5177\uff0c\u4f60\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\u5728\u53d1\u5e03\u4e2d\u6709\u4e00\u4e2a\u540d\u4e3aetc\u7684\u5b50\u76ee\u5f55\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u540d\u4e3aiproute2\u7684\u5b50\u76ee\u5f55\u3002\u5e94\u8be5\u62f7\u8d1d\u8be5\u5b50\u76ee\u5f55\u5230\/etc\u76ee\u5f55\u4e0b\u6216\u5728\/etc\u76ee\u5f55\u4e0b\u521b\u5efaiproute2\u5b50\u76ee\u5f55\u3002\u8be5\u76ee\u5f55\u5305\u542b\u7528\u6765\u547d\u540d\u8def\u7531\u8868\u53ca\u7b56\u7565\u8def\u7531\u7ed3\u6784\u7684\u5176\u4ed6\u65b9\u9762\u7684\u6587\u4ef6\u3002\u5728\u8be5\u76ee\u5f55\u4e2d\u521b\u5efart_tables\u6587\u4ef6\uff0c\u5176\u4e2d\u793a\u4f8b\u6587\u4ef6\u4e00\u822c\u5df2\u7ecf\u5305\u542b\u4e86\u67d0\u4e9b\u5185\u5bb9\uff0c\u5e76\u4e3a\u8def\u7531\u88681\u63d0\u4f9b\u4e86\u793a\u4f8b\u540d\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u9996\u5148\u7f16\u8f91\u8be5\u6587\u4ef6\u6765\u521b\u5efa\u82e5\u5e72\u5728\u4e0b\u9762\u7684\u793a\u4f8b\u4e2d\u4f7f\u7528\u7684\u8868\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000# reserved values

\n \u3000\u3000\u3000#
\n \u3000\u3000\u3000255\u3000\u3000 local

\n \u3000\u3000\u3000254\u3000\u3000 main

\n \u3000\u3000\u3000253\u3000\u3000 default

\n \u3000\u3000\u30000\u3000\u3000\u3000 unspec

\n \u3000\u3000\u3000#
\n \u3000\u3000\u3000# local

\n \u3000\u3000\u3000#
\n \u3000\u3000\u30001\u3000\u3000\u3000 goodnet1

\n \u3000\u3000\u30002\u3000\u3000\u3000 goodnet2

\n \u3000\u3000\u30003\u3000\u3000\u3000 badnet1

\n \u3000\u3000\u30004\u3000\u3000\u3000 badnet2

\n \u3000\u3000\u30005\u3000\u3000\u3000 internet

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u53ef\u4ee5\u770b\u5230\u901a\u8fc7\u4e3a\u8def\u7531\u8868\u547d\u540d\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u8868\u6570\u5b57ID\u6216\u8868\u540d\u6765\u5f15\u7528\u8def\u7531\u8868\u3002\u4f8b\u5982\u4e0b\u9762\u4e24\u4e2a\u547d\u4ee4\u5c06\u5bf9\u540c\u4e00\u4e2a\u8def\u7531\u8868\u8fdb\u884c\u64cd\u4f5c\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route list table 1

\n \u3000\u3000\u3000ip route list table goodnet1

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u901a\u8fc7\u8868\u540d\u53ef\u4ee5\u66f4\u597d\u7684\u7406\u89e3\u5728\u5bf9\u54ea\u4e2a\u8def\u7531\u8868\u8fdb\u884c\u64cd\u4f5c\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b 2\uff1a\u521b\u5efa\u591a\u4e2a\u8def\u7531\u8868

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5982\u679c\u5df2\u7ecf\u521b\u5efa\u4e86\u5982\u4e0a\u6240\u793a\u7684rt_table\u4fe1\u606f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u5bdf\u770b\u5404\u4e2a\u8def\u7531\u8868\u7684\u5185\u5bb9\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route list table

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5f53\u7136\u5373\u4f7f\u6ca1\u6709\u5b9a\u4e49rt_table\u6587\u4ef6\u540c\u6837\u53ef\u4ee5\u4f7f\u7528\u6570\u5b57\u6765\u5f15\u7528\u6240\u6709\u76840-255\u4e2a\u8def\u7531\u8868\uff0c\u56e0\u4e3a\u5b83\u4eec\u90fd\u662f\u5b58\u5728\u7684\uff0c\u53ea\u662f\u5176\u4e2d\u5927\u90e8\u5206\u6ca1\u6709\u8def\u7531\u4fe1\u606f\u6570\u636e\u7f62\u4e86\u3002\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\u901a\u8fc7rt_table\u6587\u4ef6\u6765\u5c06\u88681\u5b9a\u4e49\u4e3agoodnet1\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u7684\u4f8b\u5b50\u662f\u5411\u5b9a\u4e49\u7684\u6bcf\u4e2a\u8def\u7531\u8868\u90fd\u6dfb\u52a0\u4e00\u6761\u8def\u7531\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add 10.10.10.0\/24 via 192.168.1.2 table goodnet1

\n \u3000\u3000\u3000ip route add 10.10.11.0\/24 via 192.168.1.2 table goodnet2

\n \u3000\u3000\u3000ip route add 10.10.12.0\/24 via 192.168.1.2 table badnet1

\n \u3000\u3000\u3000ip route add 10.10.13.0\/24 via 192.168.1.2 table badnet1

\n \u3000\u3000\u3000ip route add default via 192.168.1.254 table internet

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u7136\u540e\u518d\u901a\u8fc7ip rouite list talbe \u547d\u4ee4\u5c31\u53ef\u4ee5\u5bdf\u770b\u8def\u7531\u8868\u4e2d\u7684\u5404\u4e2a\u8def\u7531\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b3\uff1a\u5efa\u7acb\u591a\u4e2aIP\u5730\u5740
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8fd9\u91cc\u7684\u591a\u4e2aIP\u5730\u5740\u5e76\u4e0d\u540c\u4e8eIP\u522b\u540d\uff0c\u5728Linux2.1\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\u5df2\u7ecf\u53cd\u5bf9\u4f7f\u7528”:#”\u7684IP\u522b\u540d\u65b9\u5f0f\u3002\u800c\u5e94\u8be5\u7528\u65b0\u7684\u65b9\u5f0f\u6765\u4f7f\u7528\u591aIP\u5730\u5740\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5047\u8bbeeth0\u8f93\u51fa\u63a5\u53e3\u5e94\u8be5\u5177\u6709\u4e09\u4e2a\u4e0d\u540c\u7684IP\u5730\u5740\uff0c\u5176\u4e2d\u7684\u4e24\u4e2a\u5e94\u8be5\u5c5e\u4e8e\u540c\u4e00\u4e2a\u5b50\u7f51\uff0c\u4f46\u662f\u5e94\u8be5\u88ab\u72ec\u7acb\u5730\u8bbe\u7f6e\uff0c\u793a\u4f8b\u540c\u6837\u8bf4\u660e\u4e86\u5728Linux2.2\u53ca\u4ee5\u4e0a\u7248\u672c\u7684\u5173\u95ed\u81ea\u52a8\u8def\u7531\u6dfb\u52a0\u7684\u65b9\u6cd5\u3002\u5728Linux2.2\u53ca\u4ee5\u4e0a\u7248\u672c\u5185\u6838\u7684\u7cfb\u7edf\u4e2d\uff0c\u5f53\u4e3a\u4e00\u4e2a\u63a5\u53e3\u8d4b\u4e88\u4e00\u4e2aIP\u5730\u5740\u65f6\uff0c\u5185\u6838\u5c06\u81ea\u52a8\u4e3a\u8be5IP\u5730\u5740\u5c5e\u4e8e\u7684\u7f51\u7edc\u5728\u8def\u7531\u8868\u4e2d\u6dfb\u52a0\u4e00\u6761\u5bf9\u5e94\u7684\u8def\u7531\u3002\u800c\u7531\u4e8e\u8fd9\u91cc\u5c06\u4e3a\u540c\u4e00\u4e2a\u63a5\u53e3\u8d4b\u4e88\u5c5e\u4e8e\u540c\u4e00\u4e2a\u5b50\u7f51\u7684\u4e24\u4e2a\u4e0d\u540c\u7684IP\uff0c\u6240\u4ee5\u5728\u6dfb\u52a0IP\u5730\u5740\u65f6\u4e0d\u5e0c\u671b\u6dfb\u52a0\u8def\u7531\uff0c\u5426\u5219\u4f1a\u9020\u6210\u8def\u7531\u51b2\u7a81\uff0c\u56e0\u6b64\u5c31\u9700\u8981\u6dfb\u52a0\u8be5\u5730\u5740\u4e3a\u4e00\u4e2a\u4e3b\u673a\u5730\u5740\u3002\u53ea\u9700\u8981\u8bbe\u7f6e\u8be5\u5730\u5740\u65f6\u6307\u5b9a\u5b8c\u5168\u4e3b\u673a\u5730\u5740\u63a9\u7801\uff0c\u7136\u540e\u624b\u5de5\u6dfb\u52a0\u5fc5\u8981\u7684\u8def\u7531\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e3a\u63a5\u53e3\u8bbe\u7f6e\u5982\u4e0b\u5730\u5740\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000192.168.1.1
\n \u3000\u3000\u3000192.168.1.128
\n \u3000\u3000\u3000192.168.3.1
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5728\u6dfb\u52a0192.168.1.0\/24\u7684\u4e24\u4e2a\u5730\u5740\u65f6\u9700\u8981\u5173\u95ed\u81ea\u52a8\u8def\u7531\u6dfb\u52a0\uff0c\u800c\u5141\u8bb8\u5bf9192.168.3.0\/24\u65f6\u5141\u8bb8\u81ea\u52a8\u8def\u7531\u6dfb\u52a0\u529f\u80fd\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000ip addr add 192.168.1.1\/32 dev eth0

\n \u3000\u3000\u3000ip addr add 192.168.1.128\/32 dev eth0

\n \u3000\u3000\u3000ip addr add 192.168.3.1\/24 dev eth0

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8fd9\u65f6\u5019\u5982\u679c\u5bdf\u770b\u4e3b\u8def\u7531\u8868\u5219\u4f1a\u53d1\u73b0\u5185\u6838\u53ea\u4e3a\u7f51\u7edc192.168.3.0\/24\u6dfb\u52a0\u4e86\u8def\u7531\u8868\uff0c\u800c\u6ca1\u6709\u4e3a\u7f51\u7edc192.168.1.0\/24\u6dfb\u52a0\u8def\u7531\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u901a\u8fc7ip addr\u547d\u4ee4\u53ef\u4ee5\u5bdf\u770b\u7cfb\u7edf\u7684\u6240\u6709IP\u5730\u5740\u4fe1\u606f\uff1a

\n \u3000\u3000
\n \u3000\u3000\u3000root@netmonster# ip addr

\n \u3000\u3000\u30001: lo: mtu 3924 qdisc noqueue

\n \u3000\u3000\u3000\u3000\u3000link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

\n \u3000\u3000\u3000\u3000\u3000inet 127.0.0.1\/8 brd 127.255.255.255 scope host lo

\n \u3000\u3000\u30002: eth0: mtu 1500 qdisc pfifo_fast qlen 100

\n \u3000\u3000\u3000\u3000\u3000link\/ether 00:00:49:61:32:bc brd ff:ff:ff:ff:ff:ff

\n \u3000\u3000\u3000\u3000\u3000inet 192.168.1.1\/32 scope global eth0

\n \u3000\u3000\u3000\u3000\u3000inet 192.168.1.128\/32 scope global eth0

\n \u3000\u3000\u3000\u3000\u3000inet 192.168.3.1\/24 scope global eth0

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u6211\u4eec\u5c06\u8ba8\u8bba\u51e0\u4e2a\u66f4\u52a0\u590d\u6742\u7684\u4f8b\u5b50\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b 4\uff1a\u591a\u8def\u7531\u8868\u548cIP\u5730\u5740

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000Linux\u5185\u6838\u8def\u7531\u4ee3\u7801\u6700\u5f3a\u5927\u7684\u7279\u8272\u5c31\u662f\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531\u548c\u4f7f\u7528\u591a\u5730\u5740\u3001\u591a\u8def\u7531\u8868\u7684\u7ed3\u5408\u4f7f\u7528\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u8ba8\u8bba\u7684\u662f\u4e00\u4e2a\u5145\u5f53\u8def\u7531\u5668\u7684\u8fde\u63a5\u4e09\u4e2a\u4e0d\u540c\u7684\u7f51\u7edc\u7684\u7cfb\u7edf\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u53c2\u8003\u6587\u7ae0\u5f00\u5934\u7684\u56fe\u7247\uff0c\u53ef\u4ee5\u770b\u5230\u6838\u5fc3\u7cfb\u7edf\u7684\u5916\u90e8\u63a5\u53e3\u8fde\u63a5\u4e86\u4e09\u4e2a\u5916\u90e8\u7f51\u7edc\u3002\u6bcf\u4e2a\u7f51\u7edc\u90fd\u6709\u81ea\u5df1\u7684\u8def\u7531\u5668\u548c\u81ea\u5df1\u7684IP\u5730\u5740\u7a7a\u95f4\u3002\u4f46\u662f\u5176\u4e2d\u7684\u4e24\u4e2a\u5730\u5740\u7a7a\u95f4\u662f\u91cd\u53e0\u7684\uff0c\u56e0\u6b64\u589e\u52a0\u4e86\u60c5\u51b5\u7684\u590d\u6742\u6027\u3002\u8fd9\u91cc\u6211\u4eec\u8bbe\u7f6e\u5982\u4e0b\u89c4\u5219\u7684\u8def\u7531\u8868\u6765\u5b9e\u73b0\u4e92\u8054\uff1a
\n \u3000\u3000
\n \u3000\u3000\u4ece\u4efb\u4f55\u5185\u90e8\u7f51\u7edc\u5230Inetent\u7684\u6570\u636e\u6d41\u90fd\u662f\u5141\u8bb8\u7684\u3002
\n \u3000\u3000\u4ece\u5185\u90e8\u7f51B\u5230\u7f51\u7edcA\u7684\u6570\u636e\u6d41\u662f\u5141\u8bb8\u7684\u3002\u3000
\n \u3000\u3000\u4ece\u5185\u90e8\u7f51A\u5230\u7f51\u7edcC\u7684\u6570\u636e\u6d41\u662f\u5141\u8bb8\u7684\u3002
\n \u3000\u3000\u5185\u90e8\u7f51A\u7684\u5730\u5740\u4e3a33-62\u7684\u4e3b\u673a\u5141\u8bb8\u8bbf\u95ee\u7f51\u7edcA\u3002
\n \u3000\u3000\u5185\u90e8\u7f51B\u7684\u5730\u5740\u4e3a65-78\u7684\u4e3b\u673a\u5141\u8bb8\u8bbf\u95ee\u7f51\u7edcC\u3002
\n \u3000\u3000\u3000\u3000\u9996\u5148\uff0c\u914d\u7f6e\u4e24\u4e2a\u5916\u90e8IP\u5730\u5740-\u5728DMZ\u4ee5\u592a\u7f51\u63a5\u53e3eth0\u7684\u4e24\u4e2a\u5730\u5740\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip addr add 10.254.254.2\/30 dev eth0

\n \u3000\u3000\u3000ip addr add 172.17.1.128\/24 dev eth0

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u4e00\u6b65\u5c06\u8ba8\u8bba\u521b\u5efa\u54ea\u4e9b\u8def\u7531\u8868\uff0c\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u6700\u597d\u529e\u6cd5\u662f\u60f3\u5230\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531\u80fd\u5b9e\u73b0\u6839\u636e\u6e90\u5730\u5740\u6765\u51b3\u5b9a\u4f7f\u7528\u54ea\u4e2a\u8def\u7531\u8868\u3002\u7b56\u7565\u89c4\u5219\u5177\u6709\u5212\u5206\u5185\u90e8\u7f51\u7edc\u7684\u80fd\u529b\uff0c\u56e0\u6b64\u9996\u5148\u53ef\u4ee5\u5728\u8def\u7531\u8868\u4e2d\u6dfb\u52a0\u57fa\u4e8e\u76ee\u7684\u7684\u8def\u7531\uff0c\u5728\u793a\u4f8b\u4e2d\u6211\u4eec\u5c06\u4f7f\u7528\u524d\u9762\u521b\u5efa\u7684\u65b0\u7684\u8def\u7531\u8868\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5f53\u5728\u8def\u7531\u8868\u4e2d\u6dfb\u52a0\u8def\u7531\u65f6\u4e0b\u9762\u7684\u65b9\u6cd5\u6709\u52a9\u4e8e\u6f84\u6e05\u5e94\u8be5\u91c7\u53d6\u7684\u6b65\u9aa4\u3002\u5047\u8bbe\u4f60\u914d\u7f6e\u7684\u662f\u53ea\u6709\u4e24\u4e2a\u63a5\u53e3\u7684\u8def\u7531\u5668\uff0c\u5916\u63a5\u53e3\u76f4\u63a5\u8fde\u63a5Interet\u51fa\u53e3\u8def\u7531\u5668\uff0c\u800c\u5185\u63a5\u53e3\u76f4\u63a5\u8fde\u63a5\u5185\u90e8\u7f51\u7edc\u3002\u914d\u7f6e\u8fd9\u6837\u7684\u8def\u7531\u5668\u662f\u975e\u5e38\u7b80\u5355\u7684\uff0c\u4e3a\u4e86\u8bf4\u660e\u6211\u4eec\u8fd9\u91cc\u5728\u88681-goodnet1\u8fd9\u4e2a\u8def\u7531\u8868\u8fdb\u884c\u64cd\u4f5c\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add 10.10.0.0\/16 via 10.254.254.2 table goodnet1 proto static

\n \u3000\u3000\u3000ip route add default via 172.17.1.254 table goodnet1 proto static

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5bf9\u4e8egoodnet2\u8fdb\u884c\u914d\u7f6e\u5219\u662f\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add 172.18.0.0\/16 via 172.17.1.1 table goodnet2 proto static

\n \u3000\u3000\u3000ip route add default via 172.17.1.254 table goodnet2 proto static

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u53ef\u4ee5\u770b\u5230\u5bf9\u4e09\u4e2a\u76ee\u6807\u7f51\u7edc\u53ea\u9700\u8981\u4e24\u4e2a\u8def\u7531\u8868\uff0c\u8fd9\u91cc\u5bf9\u4e8e\u8fde\u63a5Internet\u7684\u9ed8\u8ba4\u8def\u7531\u5728\u4e24\u4e2a\u8868\u4e2d\u90fd\u8fdb\u884c\u4e86\u8bbe\u7f6e\u3002\u4e3a\u4ec0\u4e48\u4e0d\u5c06\u9ed8\u8ba4\u8def\u7531\u5b58\u653e\u5728\u7b2c\u4e09\u4e2a\u8def\u7531\u8868\u4e2d\u5462\uff1f\u9996\u5148\u5e94\u8be5\u8003\u8651\u5230\u89c4\u5219\u548c\u8def\u7531\u8868\u4e4b\u95f4\u7684\u4ea4\u4e92\uff0c\u800c\u4e14\u89c4\u5219\u662f\u5b9e\u73b0\u5bf9\u57fa\u4e8e\u7b56\u7565\u8def\u7531\u7684\u5b9a\u4e49\u3002\u591a\u6761\u89c4\u5219\u53ef\u4ee5\u6307\u5411\u540c\u4e00\u4e2a\u8def\u7531\u8868\u3002\u7136\u800c\uff0c\u4e00\u65e6\u8fdb\u5165\u67d0\u4e2a\u8def\u7531\u8868\u4ee5\u540e\uff0c\u5219\u53ea\u80fd\u662f\u5339\u914d\u4e00\u6761\u8def\u7531\u6216\u8fd4\u56de\u4e00\u6761\u8def\u7531\u94fe\u3002\u5982\u679c\u5339\u914d\u5230\u4e00\u6761\u89c4\u5219\u5219\u5c31\u8ba4\u4e3a\u4f60\u5df2\u7ecf\u62e5\u6709\u4e00\u6761\u6b63\u786e\u7684\u7b56\u7565\u5339\u914d\uff0c\u5219\u8be5\u89c4\u5219\u6307\u5411\u7684\u8def\u7531\u8868\u5305\u542b\u4e86\u8be5\u6570\u636e\u62a5\u6240\u6709\u7684\u8def\u7531\u53ef\u80fd\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5982\u679c\u6709\u4e09\u4e2a\u8def\u7531\u8868\uff0c\u5219\u9700\u8981\u6dfb\u52a0\u4e00\u6761\u89c4\u5219\u6765\u5bdf\u770b\u6570\u636e\u62a5\u76ee\u7684\u3002\u800c\u68c0\u67e5\u6570\u636e\u62a5\u76ee\u7684\u5730\u5740\u662f\u6807\u51c6\u8def\u7531\u7684\u529f\u80fd\u3002\u4e3a\u4ec0\u4e48\u8981\u5bf9\u6bcf\u79cd\u6e90\u3001\u76ee\u7684\u7684\u7ec4\u5408\u90fd\u9700\u8981\u4e00\u4e2a\u89c4\u5219\u5462\uff1f\u901a\u8fc7\u4f7f\u7528\u8def\u7531\u8868\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5b9a\u4e49\u5c3d\u91cf\u5c11\u7684\u89c4\u5219\u6765\u8fbe\u5230\u76ee\u7684\u3002\u5f53\u7136 \u7cfb\u7edf\u7684\u7075\u6d3b\u6027\u5141\u8bb8\u901a\u8fc7\u591a\u6761\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u6837\u7684\u8def\u7531\u3002\u53ef\u4ee5\u6839\u636e\u5728\u81ea\u5df1\u7684\u559c\u597d\u6765\u51b3\u5b9a\u90a3\u79cd\u65b9\u6848\u6700\u9002\u5408\uff1a

\n \u3000\u3000
\n \u3000\u3000\u3000ip rule add from 192.168.1.32\/27 to 172.18.0.0\/16 pref 15000 table goodnet1

\n \u3000\u3000\u3000ip rule add from 192.168.2.64\/28 to 10.10.0.0\/16 pref 15001 table goodnet2

\n \u3000\u3000\u3000ip rule add from 192.168.1.0\/24 pref 15002 table goodnet1

\n \u3000\u3000\u3000ip rule add from 192.168.2.0\/24 pref 15003 table goodnet2

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\u4f7f\u7528\u4e86\u4f18\u5148\u7ea7\u53c2\u6570\u8bbe\u5b9a\u6765\u5b9a\u4e49\u6570\u636e\u62a5\u5339\u914d\u89c4\u5219\u7684\u987a\u5e8f\u3002\u73b0\u5728\u6765\u770b\u770b\u5f53\u4e00\u4e2a\u6570\u636e\u62a5\u4ece\u5185\u90e8\u7f51\u7edc\u7ecf\u8fc7\u8def\u7531\u7cfb\u7edf\u65f6\u4f1a\u53d1\u751f\u4ec0\u4e48\u60c5\u51b5\u3002\u9996\u5148\uff0c\u5b83\u4f1a\u901a\u8fc7\u4f18\u5148\u7ea7\u4e3a0\u7684\u89c4\u5219\u68c0\u67e5\uff1b\u968f\u540e\u4f1a\u9047\u5230\u4f18\u5148\u7ea7\u4e3a15000\u7684\u89c4\u5219\uff0c\u82e5\u5339\u914d\u5219\u4f1a\u88abgoodnet1\u8fd9\u4e2a\u8def\u7531\u8868\u8fdb\u884c\u64cd\u4f5c\uff0c\u5426\u5219\u5c06\u4f1a\u5206\u522b\u7ecf\u8fc715001\u300115002\u300115003\u7684\u89c4\u5219\u3002\u5b83\u80af\u5b9a\u4f1a\u88ab15000-15003\u51e0\u4e2a\u89c4\u5219\u4e2d\u7684\u4e00\u4e2a\u6240\u5339\u914d\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e0b\u9762\u4e3a\u4e86\u8bf4\u660e\u5b9a\u4e49\u8def\u7531\u7ed3\u6784\u7684\u7075\u6d3b\u6027\uff0c\u6211\u4eec\u5c06\u4ece\u53e6\u5916\u4e00\u4e2a\u89d2\u5ea6\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002Linux\u8def\u7531\u5668\u7684\u8be6\u7ec6\u60c5\u51b5\u5982\u4e0b\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000eth0 – DMZ ethernet – addresses: 10.254.254.2\/30, 172.17.1.128\/24

\n \u3000\u3000\u3000eth1 – Internal A – addresses: 192.168.1.254\/24

\n \u3000\u3000\u3000eth2 – Internal B – addresses: 192.168.2.254\/24

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u9996\u5148\u5047\u8bbe\u91cd\u65b0\u5f00\u59cb\uff0c\u5c06\u91cd\u65b0\u5b9a\u4e49\u8def\u7531\u548c\u89c4\u5219\uff0c\u9996\u5148\u7f16\u8f91\/etc\/iproute2\/rt_tables\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000# reserved values

\n \u3000\u3000\u3000#
\n \u3000\u3000\u3000255\u3000\u3000 local

\n \u3000\u3000\u3000254\u3000\u3000 main

\n \u3000\u3000\u3000253\u3000\u3000 default

\n \u3000\u3000\u30000\u3000\u3000\u3000 unspec

\n \u3000\u3000\u3000#
\n \u3000\u3000\u3000# Local Tables

\n \u3000\u3000\u3000#
\n \u3000\u3000\u30001\u3000\u3000\u3000 int1

\n \u3000\u3000\u30002\u3000\u3000\u3000 int2

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u521b\u5efa\u8def\u7531\u548c\u89c4\u5219\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add 10.10.0.0\/16 via 10.254.254.1 table int1 proto static

\n \u3000\u3000\u3000ip route add throw 0\/0 table int1 proto static

\n \u3000\u3000\u3000ip route add 172.18.0.0\/16 via 172.17.1.1 table int2 proto static

\n \u3000\u3000\u3000ip route add throw 0\/0 table int2 proto static

\n \u3000\u3000\u3000ip route add 0\/0 via 172.17.1.254 table main proto static

\n \u3000\u3000\u3000ip rule add pref 15000 table int1 iif eth1

\n \u3000\u3000\u3000ip rule add pref 15001 table int2 iif eth2

\n \u3000\u3000\u3000ip rule add pref 15002 to 10.10.0.0\/16 table int1

\n \u3000\u3000\u3000ip rule add pref 15003 to 172.18.0.0\/16 table int2

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u8fd9\u4e9b\u8def\u7531\u548c\u89c4\u5b9e\u65bd\u548c\u524d\u9762\u793a\u4f8b\u4e00\u6837\u7684\u64cd\u4f5c(\u4ed4\u7ec6\u7814\u7a76\u8fd9\u4e9b\u89c4\u5219\u548c\u8def\u7531\u5e76\u7406\u89e3\u5b83\u4eec)
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f7f\u7528ipchains\u5b9e\u73b0\u9ad8\u7ea7\u7b56\u7565\u8def\u7531
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5728\u6307\u5b9a\u7b56\u7565\u89c4\u5219\u65f6\u53ef\u4ee5\u4f7f\u7528\u7684\u4e00\u4e2a\u9009\u9879\u5c31\u662f\u5141\u8bb8\u901a\u8fc7fwmark\u503c\u6765\u5339\u914d\u67d0\u4e2a\u89c4\u5219\u3002fwmark\u662f\u4e00\u4e2a\u6570\u5b57\u6807\u7b7e\uff0c\u6570\u636e\u62a5\u8fc7\u6ee4\u5de5\u5177ipchains\u80fd\u5c06fwmark\u503c\u9644\u52a0\u7ed9\u67d0\u4e2a\u6570\u636e\u62a5\u3002\u5982\u679c\u4f60\u5bf9ipchains\u5e76\u4e0d\u662f\u5f88\u719f\u6089\uff0c\u4f60\u9700\u8981\u9996\u5148\u9605\u8bfbipchains-howto.
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b 5\uff1a\u7b80\u5355\u57fa\u4e8efwmard\u7684\u7b56\u7565\u8def\u7531

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u9996\u5148\u4ece\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u5f00\u59cb\uff0d\u5229\u7528\u4e0a\u9762\u793a\u4f8b\u4e2d\u7684\u591a\u8def\u7531\u8868\uff0c\u5e0c\u671b\u5b9e\u73b0\u6765\u81ea\u5185\u90e8\u7f51B\u7684\u3001\u76ee\u7684\u7aef\u53e3\u4e3a80\u7684\u6570\u636e\u53d1\u9001\u5230Internet\uff0c\u4f46\u662f\u6765\u81ea\u5185\u90e8\u7f51A\u7684\u3001\u76ee\u7684\u7aef\u53e3\u4e3a80\u7684\u6570\u636e\u5219\u88ab\u7981\u6b62\u3002\u9996\u5148\u6e05\u7a7a\u8fd9\u4e9b\u8def\u7531\u8868\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route flush table goodnet1

\n \u3000\u3000\u3000ip route flush table goodnet2

\n \u3000\u3000
\n \u3000\u3000\u3000ip route flush table badnet1

\n \u3000\u3000
\n \u3000\u3000\u3000ip route flush table badnet2

\n \u3000\u3000
\n \u3000\u3000\u3000ip route flush table internet

\n \u3000\u3000
\n \u3000\u3000\u3000ip route flush cache

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u800c\u76ee\u524d\u5220\u9664\u7b56\u7565\u89c4\u5219\u7684\u65b9\u6cd5\u5c31\u662f\u5c06\u5176\u4e00\u4e00\u5217\u51fa\u6765\u7136\u540e\u5c06\u5176\u624b\u5de5\u5220\u9664\uff0c\u4e5f\u5c31\u662f\u9996\u5148\u901a\u8fc7ip rule list\u547d\u4ee4\u5c06\u7b56\u7565\u89c4\u5219\u5217\u51fa\u6765\u7136\u540e\u4f7f\u7528ip rule del priority <#>\u5c06\u5176\u5220\u9664\u3002\u4f46\u8fd9\u91cc\u5047\u8bbe\u5f53\u524d\u6ca1\u6709\u4efb\u4f55\u89c4\u5219\u5e76\u4e14\u8def\u7531\u8868\u4e5f\u662f\u7a7a\u7684\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4e3a\u4e86\u4f7f\u7528fwmark\u6807\u8bb0\uff0c\u9996\u5148\u5e94\u8be5\u6307\u5b9a\u5e0c\u671b\u4f7f\u7528ipchains\u6807\u8bb0\u7684\u6570\u636e\u62a5\uff0c\u7136\u540e\u4f7f\u7528\u6807\u8bb0\u503c\u6765\u6307\u5b9a\u4e00\u6761\u7b56\u7565\u89c4\u5219\u6765\u5904\u7406\u8be5\u6570\u636e\u62a5\u3002\u5e94\u8be5\u8bbe\u5b9aipchians\u81ea\u52a8\u5c06\u5341\u8fdb\u5236\u7684\u6807\u8bb0\u8f6c\u5316\u4e3a\u5341\u516d\u8fdb\u5236\u3002ip rule\u5e0c\u671b\u8f93\u5165\u4e3a\u4e00\u4e2a\u5341\u516d\u503c\u3002

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u9996\u5148\u914d\u7f6eipchains\u89c4\u5219\u4f7f\u7528\u5408\u9002\u7684\u503c\u6807\u8bb0\u8f93\u5165\u6570\u636e\u62a5\u3002\u5047\u8bbe\u5f53\u524d\u6ca1\u6709\u5176\u4ed6\u9632\u706b\u5899\u89c4\u5219\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ipchains -I input -p tcp -s 192.168.2.0\/24 -d 0\/0 80 -m 2

\n \u3000\u3000\u3000ipchains -I input -p tcp -s 192.168.1.0\/24 -d 0\/0 80 -m 16

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u73b0\u5728\u8bbe\u7acb\u7b56\u7565\u89c4\u5219\uff0c\u5728\u4e0a\u9762\u4e3a\u5185\u90e8\u7f51A\u7684\u6807\u8bb0\u503c\u4e3a\u5341\u673a\u5236\u768416\uff0c\u4e0b\u9762\u5b9a\u4e49\u76f8\u5173\u7684\u7b56\u7565(\u5e94\u8be5\u6ce8\u610f\u5230\u7b56\u7565\u5b9a\u4e49\u4e2d\u4f7f\u7528\u7684\u662f\u5341\u516d\u8fdb\u5236\uff0c\u56e0\u6b64\u4e3a10)\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip rule add fwmark 2\u3000table goodnet1

\n \u3000\u3000\u3000ip rule add fwmark 10 prohibit

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u6700\u540e\u4e3a\u8def\u7531\u8868goodnet1\u5b9a\u4e49\u5982\u4e0b\u7684\u8def\u7531\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add default via 172.17.1.254 table goodnet1

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5173\u4e8e\u7b56\u7565\u8def\u7531\u7684\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\u662f\u7b56\u7565\u8def\u7531\u548cIP\u4f2a\u88c5\u4e4b\u95f4\u5982\u4f55\u4ea4\u4e92\uff0c\u8fd9\u91cc\u6211\u4eec\u4e0d\u5bf9\u8be5\u95ee\u9898\u8fdb\u884c\u6df1\u5165\u7814\u7a76\u4f46\u662f\u901a\u8fc7\u4e00\u4e2a\u5feb\u901f\u7684\u793a\u4f8b\u6765\u52a0\u4ee5\u8bf4\u660e\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\u5728\u8f6c\u53d1\u94fe\u4e4b\u524d\u5bf9\u8def\u7531\u8868\u8fdb\u884c\u67e5\u8be2\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u4f7f\u7528IP\u4f2a\u88c5\uff0c\u5219\u8def\u7531\u9009\u62e9\u5668\u8fd4\u56de\u7684\u4efb\u4f55\u6e90\u5730\u5740\u90fd\u5c06\u88ab\u4f5c\u4e3a\u8fdb\u884cIP\u4f2a\u88c5\u7684\u5730\u5740\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b6\uff1a\u6735IP\u5730\u5740\u7684IP\u4f2a\u88c5
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f7f\u7528\u4e0a\u9762\u7684\u7f51\u7edc\u914d\u7f6e\uff0c\u6211\u8fd9\u91cc\u5c06\u5bf9\u5230\u4e09\u4e2a\u7f51\u7edc\u7684\u8fde\u63a5\u8fdb\u884c\u4f2a\u88c5\u5904\u7406\uff0c\u5e0c\u671b\u4ece\u7cfb\u7edf\u4e2d\u5f97\u5230\u5982\u4e0b\u7684\u8f93\u51fa\uff1a
\n \u3000\u3000
\n \u3000\u3000
\n \u3000\u3000\u4ece\u5185\u90e8\u7f51A\u5230\u7f51\u7edcC\u7684\u6570\u636e\u62a5\u88ab\u4f2a\u88c5\u4e3a10.254.254.2
\n \u3000\u3000\u4ece\u5185\u90e8\u7f51\u7edcB\u5230\u7f51\u7edcA\u7684\u6570\u636e\u62a5\u88ab\u4f2a\u88c5\u4e3a172.17.1.2
\n \u3000\u3000\u5185\u90e8\u7f51\u5230\u4e92\u8054\u7f51\u7684\u6570\u636e\u62a5\u90fd\u88ab\u4f2a\u88c5\u4e3a172.17.1.128
\n \u3000\u3000\u3000\u3000eth0\u914d\u7f6e\u6709\u5982\u4e0b\u5730\u5740\uff1a
\n \u3000\u3000
\n \u3000\u3000\u300010.254.254.2\/30
\n \u3000\u3000\u3000172.17.1.128\/24
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u56e0\u6b64\u4e3a\u4e86\u6ee1\u8db3\u6761\u4ef62\uff0c\u7ed9eth0\u6dfb\u52a0\u5730\u5740\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip addr add 172.17.1.2\/32 dev eth0

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5047\u8bbe\u7cfb\u7edf\u88ab\u8bbe\u7f6e\u4e3a\u5bf9\u6240\u6709\u7684\u8f93\u51fa\u6570\u636e\u62a5\u90fd\u8fdb\u884cIP\u4f2a\u88c5\u3002\u9996\u5148\u6e05\u7a7a\u65e7\u7684\u7b56\u7565\u89c4\u5219\uff0c\u7136\u540e\u521b\u5efa\u65b0\u7684\u89c4\u5219\u5982\u4e0b\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip route add 10.10.0.0\/16 via 10.254.254.2 src 10.254.254.2

\n \u3000\u3000\u3000\u3000\u3000table goodnet1 proto static

\n \u3000\u3000\u3000ip route add default via 172.17.1.254 src 172.17.1.128\u3000
\n \u3000\u3000\u3000\u3000\u3000table goodnet1 proto static

\n \u3000\u3000\u3000ip route add 172.18.0.0\/16 via 172.17.1.1 src 172.17.1.2

\n \u3000\u3000\u3000\u3000\u3000table goodnet2 proto static

\n \u3000\u3000\u3000ip route add default via 172.17.1.254 src 172.17.1.128

\n \u3000\u3000\u3000\u3000\u3000table goodnet2 proto static

\n \u3000\u3000\u3000ip rule add from 192.168.1.0\/24 pref 15000 table goodnet2

\n \u3000\u3000\u3000ip rule add from 192.168.2.0\/24 pref 15001 table goodnet1

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u4f8b7\uff1a\u7efc\u5408\u5b9e\u4f8b
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5047\u8bbe\u4f8b6\u4e2d\u7684\u8def\u7531\u3001\u89c4\u5219\u548c\u5730\u5740\u4ecd\u7136\u5728\u8d77\u4f5c\u7528\uff0c\u6211\u5e0c\u671b\u5b9e\u73b0\u4e0b\u9762\u7684\u9700\u6c42\uff1a
\n \u3000\u3000
\n \u3000\u3000Internal A Hosts 33-62 to Network A Masq as 172.17.1.3

\n \u3000\u3000Internal A Hosts 65-78 to tcp port 80 on Network A Masq as 172.17.1.4

\n \u3000\u3000Internal B Hosts 33-62 to tcp port 80 on Network A Deny Access\u3000
\n \u3000\u3000Internal B Hosts 65-78 to tcp port 80 on Network C Masq as 10.254.254.2

\n \u3000\u3000\u3000\u3000\u5e94\u8be5\u8bb0\u5f97\u6211\u4eec\u4ecd\u7136\u5141\u8bb8\u4f8b6\u4e2d\u7684\u8fde\u63a5\u6027\uff0c\u4e0b\u9762\u5c31\u662f\u89e3\u51b3\u65b9\u6848\uff1a
\n \u3000\u3000
\n \u3000\u3000\u3000ip addr add 172.17.1.3\/32 dev eth0

\n \u3000\u3000\u3000ip addr add 172.17.1.4\/32 dev eth0

\n \u3000\u3000\u3000ip route del default table goodnet1

\n \u3000\u3000\u3000ip route del default table goodnet2

\n \u3000\u3000\u3000ip route add throw 0\/0 table goodnet1 proto static

\n \u3000\u3000\u3000ip route add throw 0\/0 table goodnet2 proto static

\n \u3000\u3000\u3000ip route add default via 172.17.1.254 src 172.17.1.128

\n \u3000\u3000\u3000\u3000\u3000table internet proto static

\n \u3000\u3000\u3000ip route add 172.18.0.0\/16 via 172.17.1.1 src 172.17.1.3

\n \u3000\u3000\u3000\u3000\u3000table badnet1 proto static

\n \u3000\u3000\u3000ip route add 172.18.0.0\/16 via 172.17.1.1 src 172.17.1.4

\n \u3000\u3000\u3000\u3000\u3000table badnet2 proto static

\n \u3000\u3000\u3000ip rule add from 192.168.1.32\/27 to 172.18.0.0\/16 pref 14999 table badnet1

\n \u3000\u3000\u3000ip rule add fwmark 1 pref 14998 table badnet2

\n \u3000\u3000\u3000ip rule add fwmark 2 pref 14997 table goodnet1

\n \u3000\u3000\u3000ip rule add fwmark 3 pref 14996 blackhole

\n \u3000\u3000\u3000ip rule add pref 15003 table internet

\n \u3000\u3000\u3000ipchains -I input -p tcp -s 192.168.1.64\/28 -d 172.18.0.0\/16 80 -m 1

\n \u3000\u3000\u3000ipchains -I input -p tcp -s 192.168.2.64\/28 -d 10.10.0.0\/16 80 -m 2

\n \u3000\u3000\u3000ipchains -I input -p tcp -s 192.168.2.32\/27 -d 172.18.0.0\/16 80 -m 3

\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5176\u5b9e\u6709\u5f88\u591a\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u4f46\u662f\u867d\u7136\u8fd9\u91cc\u4f7f\u7528\u540d\u4e3abadnet1\u548cbadnet2\u7684\u8868\uff0c\u4f46\u662f\u540d\u5b57\u662f\u6ca1\u6709\u5b9e\u9645\u610f\u4e49\u7684\uff0c\u53ea\u662f\u7528\u6765\u5f15\u7528\u88683\u548c\u88684\u7684\u7b26\u53f7\u3002
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u603b\u7ed3
\n \u3000\u3000
\n \u3000\u3000\u3000\u3000\u5e0c\u671b\u4f60\u901a\u8fc7\u8be5\u6587\u7ae0\u80fd\u4eab\u53d7Linux2.2\u7684\u5f3a\u5927\u8def\u7531\u529f\u80fd\uff0c\u5b83\u63d0\u4f9b\u7684\u8def\u7531\u529f\u80fd\u662f\u5f88\u591a\u8def\u7531\u5668\u4ea7\u54c1\u90fd\u662f\u96be\u4ee5\u5339\u654c\u7684\uff0c \u5982\u679c\u8003\u8651\u5230\u5b83\u7684\u514d\u8d39\u6027\uff0c\u5b83\u7684\u6027\u80fd\u4ef7\u683c\u6bd4\u66f4\u662f\u6ca1\u6709\u4efb\u4f55\u4ea7\u54c1\u53ef\u4ee5\u76f8\u6bd4\u3002\u4f8b\u5982\u4f8b7\u4e2d\u7684\u4f8b\u5b50\u53ef\u4ee5\u5f88\u597d\u7684\u8fd0\u884c\u5728\u53ea\u670916M\u5185\u5b58\u7684486\/33\u7684\u673a\u5668\u4e0a\u3002<\/p>\n<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Linux\u73af\u5883\u4e0b\u57fa\u4e8e\u7b56\u7565\u7684\u8def\u7531 \u6765\u6e90\uff1aChinaitlab 2002-12-13 22:44:00 \u3000\u3000\u539f\u6587\u4f5c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"_links":{"self":[{"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/posts\/82"}],"collection":[{"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=82"}],"version-history":[{"count":1,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/posts\/82\/revisions"}],"predecessor-version":[{"id":83,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=\/wp\/v2\/posts\/82\/revisions\/83"}],"wp:attachment":[{"href":"http:\/\/www.microwolf.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=82"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=82"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.microwolf.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}