{"id":270,"date":"2015-01-26T14:47:08","date_gmt":"2015-01-26T06:47:08","guid":{"rendered":"https:\/\/www.csbios.net\/blog\/?p=270"},"modified":"2015-01-26T14:53:43","modified_gmt":"2015-01-26T06:53:43","slug":"ubuntu%e5%a4%96%e4%bc%a0ip%e5%8c%85%e4%b8%ad%e7%9a%84%e6%ba%90%e5%9c%b0%e5%9d%80%e6%98%af%e6%80%8e%e4%b9%88%e5%86%b3%e5%ae%9a%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.pufengdu.org\/blog\/?p=270","title":{"rendered":"Ubuntu\u5916\u4f20IP\u5305\u4e2d\u7684\u6e90\u5730\u5740\u662f\u600e\u4e48\u51b3\u5b9a\u7684"},"content":{"rendered":"

\u5173\u952e\u5b57\uff1aiproute2\uff0ciptables\uff0cNAT\uff0cip address label<\/p>\n

\u8fd9\u7bc7\u7684\u5185\u5bb9\u5176\u5b9e\u5f88\u57fa\u672c\uff0c\u4f46\u662f\u6807\u9898\u5176\u5b9e\u60f3\u4e86\u5f88\u4e45\u624d\u5199\u4e0a\u53bb\uff0c\u56e0\u4e3a\u8981\u4e3a\u8fd9\u4e9b\u5185\u5bb9\u5199\u4e00\u4e2a\u5408\u9002\u7684\u6807\u9898\u5b9e\u5728\u662f\u592a\u56f0\u96be\u4e86\u3002\u8fd9\u4e00\u65b9\u9762\u662f\u8fd9\u4ef6\u4e8b\u60c5\u7684\u6298\u817e\u6709\u592a\u591a\u4e0d\u5f97\u5df2\u7684\u7406\u7531\uff0c\u4e5f\u6709\u592a\u591a\u6ca1\u6cd5\u5199\u5728Blog\u91cc\u9762\u7684\u5173\u952e\u5b57\u3002\u800c\u53e6\u4e00\u65b9\u9762\u662f\u5728\u56e0\u4e3a\u8fd9\u4ef6\u4e8b\u60c5\u8fc7\u4e8e\u57fa\u672c\u4e86\uff0c\u4ee5\u81f3\u4e8e\u5982\u679c\u8ba4\u771f\u7684\u76f8\u4fe1\u8ba1\u7b97\u673a\u7f51\u7edc\u6280\u672f\u57fa\u7840\u8fd9\u95e8\u8bfe\u7a0b\u7684\u57fa\u672c\u5185\u5bb9\uff08\u8bdd\u8bf4\u5f53\u5e74\u8003\u8bd5\u53ea\u6263\u4e86\u4e00\u5206\uff09\u5c31\u4ec0\u4e48\u95ee\u9898\u90fd\u4e0d\u4f1a\u6709\u7684\u5206\u5206\u949f\u641e\u5b9a\u7684\u4e8b\u60c5\u3002\u800c\u81ea\u5df1\u7eaf\u7cb9\u6ca1\u6709\u628a\u4e8b\u60c5\u4ece\u5934\u7528\u4e00\u79cd\u4e25\u8c28\u5ba2\u89c2\u7684\u65b9\u5f0f\u53bb\u601d\u8003\uff0c\u6240\u4ee5\u8db3\u8db3\u6298\u817e\u4e8610\u5929\u624d\u660e\u767d\u8fd9\u662f\u600e\u4e48\u56de\u4e8b\u3002<\/p>\n

\u9664\u4e86\u7f57\u55e6\u4e00\u4e0b\u73b0\u4ee3Linux\u7cfb\u7edf\u91cc\u9762\u8fdb\u884c\u7f51\u7edc\u53c2\u6570\u8bbe\u5b9a\u7684\u4e00\u4e9b\u57fa\u672c\u5de5\u5177\u5916\uff0c\u8fd9\u7bc7Blog\u6d89\u53ca\u7684\u5185\u5bb9\u6709\u8fd9\u6837\u51e0\u4e2a\uff1a\uff081\uff09Linux\u7cfb\u7edf\uff0c\u51c6\u786e\u7684\u8bf4\u662f\u5185\u6838\u7248\u672c2.6\u4ee5\u4e0a\u7684Ubuntu\u7cfb\u7edf\u91cc\u9762\uff0cIP\u6570\u636e\u5305\u7684\u8def\u7531\u8fc7\u7a0b\u662f\u600e\u6837\u7684\u3002\uff082\uff09iptables\u7a76\u7adf\u5728\u8f6c\u53d1\u8fd9\u4ef6\u4e8b\u60c5\u4e0a\u8d77\u4e86\u4ec0\u4e48\u4f5c\u7528\u3002\uff083\uff09\u5bf9\u4e8e\u540c\u4e00\u4e2aNIC\uff08Network Interface Card\uff0c\u5c31\u662f\u7f51\u5361\u7aef\u53e3\uff09\u6765\u8bf4\uff0c\u5982\u679c\u7ed1\u5b9a\u4e86\u591a\u4e8e\u4e00\u4e2a\u7684IP\u5730\u5740\uff0c\u90a3\u4e48\u5982\u4f55\u5728\u6570\u636e\u5305\u6536\u53d1\u7684\u65f6\u5019\u8fdb\u884cIP\u5730\u5740\u7684\u533a\u5206\u3002<\/p>\n

\u5148\u4ece\u6700\u57fa\u672c\u7684\u8bf4\u8d77\uff0c\u5728\u73b0\u4ee3Linux\u7cfb\u7edf\u91cc\u9762\uff0c\u4e3b\u8981\u662f\u6307\u5185\u6838\u7248\u672c2.6\u4ee5\u540e\u7684Linux\u7cfb\u7edf\uff0c\u8981\u8fdb\u884c\u7f51\u7edc\u53c2\u6570\u7684\u7ba1\u7406\uff0c\u4f8b\u5982ip\u5730\u5740\u8bbe\u5b9a\uff0c\u8def\u7531\u8bbe\u5b9a\u7b49\u7b49\uff0c\u6240\u9700\u8981\u7528\u5230\u7684\u547d\u4ee4\u5df2\u7ecf\u4e0d\u662f\u7ecf\u5178\u7cfb\u7edf\u91cc\u9762\u7684ifconfig\u547d\u4ee4\u548croute\u547d\u4ee4\u4e86\uff0c\u8fd9\u4e9b\u529f\u80fd\u90fd\u88ab\u96c6\u6210\u5230\u4e86\u4e00\u4e2a\u65b0\u7684\u5de5\u5177\u91cc\u9762\uff0c\u547d\u4ee4ip\u3002\u8fd9\u4e2a\u547d\u4ee4\u6765\u81ea\u4e8e\u8f6f\u4ef6\u5305iproute2\u3002\u6211\u4eec\u5728\u8fd9\u7bc7Blog\u91cc\u9762\u7528\u5230\u7684\u5185\u5bb9\u4e3b\u8981\u5305\u62ecip route\uff0cip addr\uff0cip rule\u8fd9\u4e09\u4e2a\u3002<\/p>\n

\u7136\u540e\u6211\u4eec\u8bf4\u8def\u7531\u8bbe\u5b9a\u7684\u4e8b\u60c5\u3002\u4e00\u4e2a\u57fa\u672c\u7684\u8def\u7531\u8bbe\u5b9a\u5dee\u4e0d\u591a\u662f\u4e0b\u9762\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p>\n

ip route add xxx.xxx.xxx.xxx\/dd via yyy.yyy.yyy.yyy dev ethN<\/p>\n

\u8fd9\u5176\u4e2dxxx.xxx.xxx.xxx\u6570\u636e\u5305\u8981\u88ab\u9001\u8fbe\u7684\u6700\u7ec8\u5730\u5740\uff0cyyy.yyy.yyy.yyy\u662f\u4e0b\u4e00\u8df3\u7684\u5730\u5740\uff0c\u6216\u8005\u53eb\u5728\u5f53\u524d\u673a\u5668\u770b\u8d77\u6765\u7684\u7f51\u5173\u5730\u5740\uff0c\u8ddfWindows\u7cfb\u7edf\u83b1\u65af\uff0c\u8fd9\u4e2a\u5730\u5740\u53ef\u4ee5\u5199\u7f51\u5173\u7684\u5730\u5740\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5199\u672c\u673a\u51fa\u53e3\u7f51\u5361\u7684\u5730\u5740\uff0c\u4f46\u662f\uff0c\u5982\u679c\u4f60\u6253\u7b97\u5728\u4e00\u4e2a\u7f51\u5361\u4e0a\u7ed1\u591a\u4e8e\u4e00\u4e2a\u7684ip\u5730\u5740\uff0c\u6700\u597d\u8fd8\u662f\u5199\u7f51\u5173\u5730\u5740\u3002ethN\u662f\u672c\u673a\u51fa\u53e3\u7f51\u5361\u7684\u8bbe\u5907\u540d\u3002<\/p>\n

\u8fd9\u91cc\u5fc5\u987b\u660e\u786e\u7684\u4e00\u70b9\u662f\uff0c\u6807\u51c6\u7684\uff0c\u6216\u8005\u8bf4RFC\u91cc\u9762\u5b9a\u4e49\u7684\u8def\u7531\u8868\u662f\u5b8c\u5168\u6839\u636e\u76ee\u6807\u5730\u5740\uff0c\u4e5f\u5c31\u662fxxx.xxx.xxx.xxx\u4ee5\u53caTOS(Type of Service)\u6765\u51b3\u5b9a\u7684\uff0c\u800c\u5728\u5b9e\u9645\u4e2d\uff0c\u4e0d\u8bba\u662fWindows\u8fd8\u662fLinux\uff0c\u8c8c\u4f3c\u90fd\u6ca1\u6709\u76f4\u63a5\u5b9e\u73b0TOS\u8def\u7531\u8fd9\u4ef6\u4e8b\u60c5\uff0c\u56e0\u6b64\uff0c\u5b9e\u9645\u4e0a\u53ea\u662f\u7531\u76ee\u6807\u5730\u5740\u6765\u51b3\u5b9a\u8fd9\u4e2a\u8def\u7531\u7684\u8d70\u5411\u7684\u3002<\/p>\n

\u4ee5\u53ca\uff0c\u66f4\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8def\u7531\u53ea\u662f\u5c06\u6570\u636e\u5305\u8fdb\u884c\u8f6c\u53d1\uff0c\u5e76\u4e0d\u4f1a\u5bf9\u6570\u636e\u5305\u7684\u5185\u5bb9\u8fdb\u884c\u6539\u52a8\uff0c\u5305\u62ec\u6e90\u5730\u5740\u548c\u76ee\u7684\u5730\u5740\uff0c\u90fd\u4e0d\u4f1a\u6539\u52a8\u3002<\/p>\n

\u8fd9\u91cc\u8fd8\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0cLinux\u662f\u5177\u6709\u6e90\u5730\u5740\u8def\u7531\u8fd9\u4e2a\u4e8b\u60c5\u7684\uff0c\u8fd9\u662f\u7531ip rule\u6765\u505a\u7684\u3002\u5177\u4f53\u6765\u8bf4\u5c31\u662fLinux\u7684255\u5f20\u8def\u7531\u8868\u53ef\u4ee5\u6309\u7167\u4e0d\u540c\u4f18\u5148\u7ea7\u6839\u636e\u6e90\u5730\u5740\u4e0d\u540c\u6765\u8fdb\u884c\u67e5\u627e\u3002\u4f8b\u5982\u5982\u4e0b\u7684<\/p>\n

ip rule add from kkk.kkk.kkk.kkk pref M table Z<\/p>\n

\u5c31\u662f\u5bf9\u4e8ekkk.kkk.kkk.kkk\u53d1\u6765\u7684\u6570\u636e\u5305\uff0c\u4ee5\u4f18\u5148\u7ea7M\uff0c\u67e5\u9605\u8def\u7531\u8868Z\uff0c\u51b3\u5b9a\u5176\u8def\u7531\u3002<\/p>\n

\u7136\u540e\u6211\u4eec\u63a5\u7740\u8bf4\uff0c\u5982\u679c\u4f60\u5728\u4e00\u4e2aNIC\u4e0a\u653e\u4e86\u4e24\u4e2aIP\u5730\u5740\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u7b54\u6848\u662f\u4ec0\u4e48\u90fd\u4e0d\u4f1a\u53d1\u751f\uff0c\u8fd9\u6839\u672c\u5c31\u662f\u4e00\u4e2a\u5141\u8bb8\u7684\u4e8b\u60c5\uff0cRFC\u6587\u6863\u91cc\u9762\u5c31\u662f\u8fd9\u4e48\u5b9a\u7684\uff0c\u8981\u4fdd\u8bc1IP\u5c42\u8fde\u63a5\uff0cNIC\u4e0a\u81f3\u5c11\u9700\u8981\u4e00\u4e2aIP\u5730\u5740\uff0c\u81f3\u4e8e\u591a\u51e0\u4e2a\uff0c\u8fd9\u6ca1\u4ec0\u4e48\u5173\u7cfb\u3002\u4e0d\u8bba\u662fWindows\u8fd8\u662fLinux\uff0c\u8fd9\u90fd\u662f\u5141\u8bb8\u7684\u3002\u8981\u7ed9\u4e00\u4e2aNIC\u653e\u51e0\u4e2aip\u5730\u5740\uff0c\u8fd9\u5c31\u8981\u7528\u4e0b\u9762\u7684\u65b9\u6cd5\u4e86\u3002<\/p>\n

ip addr add xxx.xxx.xxx.xxx dev ethN label ethN:M<\/p>\n

\u8fd9\u91ccxxx.xxx.xxx.xxx\u5c31\u662f\u8981\u653e\u5230\u7f51\u5361ethN\u4e0a\u9762\u53bb\u7684ip\u5730\u5740\uff0c\u540e\u9762\u7684\u90a3\u4e2aethN:M\u53eb\u505a\u5730\u5740\u6807\u7b7e\uff0c\u4e00\u822c\u5f62\u5982eth0:0\uff0ceth0:1\u7684\u3002\u5343\u4e07\u8981\u6ce8\u610f\uff0c\u8fd9\u4e2a\u53ea\u662f\u4e2a\u6807\u7b7e\uff0c\u5e76\u4e0d\u662f\u4efb\u4f55\u865a\u62df\u8bbe\u5907\uff0c\u4e0d\u8bbaeth0:0\u8fd8\u662feth0:1\u5bf9\u5e94\u7684\u8bbe\u5907\u90fd\u662feth0\u3002\u5728\u8def\u7531\u8868\u91cc\u6307\u5b9aeth0:0\u6216\u8005eth0:1\u90fd\u662f\u4f1a\u53d8\u6210eth0\u4e14\u4e0d\u52a0\u533a\u5206\u7684\u3002\u6839\u636eLinux\u5b98\u65b9\u6587\u6863\u7684\u8bf4\u6cd5\uff0c\u8fd9\u4e2a\u529f\u80fd\u7684\u5b58\u5728\u4ec5\u4ec5\u662f\u4e3a\u4e86\u517c\u5bb9\u4ee5\u524d\u7684\u8bbe\u5907\u522b\u540d(alias)\u800c\u5b58\u5728\u7684\u3002<\/p>\n

\u90a3\u4e48\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7531\u672c\u673a\u53d1\u51fa\u7684\u4e00\u4e2a\u6570\u636e\u5305\uff0c\u4ed6\u7684\u6e90\u5730\u5740\u7a76\u7adf\u662f\u54ea\u4e2aip\u5730\u5740\u5462\uff1f\u5148\u8bf4\u4e00\u4e2a\u6700\u7b80\u5355\u7c97\u66b4\u7684\u7ed3\u8bba\uff0c\u5c31\u662f\u5982\u679c\u4f60\u7684\u4e24\u4e2aip\u5730\u5740\u6765\u81ea\u540c\u4e00\u4e2aCIDR\u5b50\u7f51\uff0c\u8fd9\u6839\u672c\u4e0d\u91cd\u8981\uff0c\u56e0\u4e3a\u4f60\u7684\u673a\u5668\u603b\u80fd\u6536\u5230\u56de\u4f20\u6570\u636e\u7684\u3002\u7136\u800c\uff0c\u5982\u679c\u4f60\u975e\u8981\u7ea0\u7ed3\u8fd9\u4ef6\u4e8b\u60c5\uff0c\u90a3\u5c31\u8981\u4f7f\u7528ip route\u547d\u4ee4\u4e2d\u7684src\u53c2\u6570\u4e86\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f<\/p>\n

ip route add xxx.xxx.xxx.xxx\/dd via yyy.yyy.yyy.yyy dev ethN src zzz.zzz.zzz.zzz<\/p>\n

src\u53c2\u6570\u4f1a\u6307\u5b9a\u4e00\u4e2a\u5df2\u7ecf\u88ab\u653e\u7f6e\u5230\u672c\u673a\u7684\u67d0\u4e00\u4e2a\u7f51\u5361\u4e0a\u7684ip\u5730\u5740\uff0c\u8fd9\u65f6\u5019\uff0c\u4f60\u53d1\u51fa\u7684\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u4e00\u822c\u6765\u8bf4\uff0c\u5c31\u4f1a\u88ab\u586b\u4e0azzz.zzz.zzz.zzz\u8fd9\u4e2a\u5730\u5740\u3002\u4f46\u662f\uff0c\u8fd9\u5e76\u4e0d\u662f\u4e00\u5b9a\u7684\u3002\u56e0\u4e3a\uff0c\u8fd8\u6709\u4e24\u4e2a\u4e2a\u5fc5\u987b\u8003\u8651\u5230\u7684\u56e0\u7d20\uff0c\u4e00\u4e2a\u662f\uff0c\u6570\u636e\u5305\u5e76\u4e0d\u6765\u81ea\u672c\u673a\uff0c\u53e6\u4e00\u4e2a\u5c31\u662fiptables\u53ef\u80fd\u4f1a\u505aNAT\u3002<\/p>\n

\u5148\u8bf4\u6570\u636e\u5305\u4e0d\u6765\u81ea\u672c\u673a\u662f\u600e\u4e48\u56de\u4e8b\u3002\u5982\u679c\u4f60\u7684\u5185\u6838\u91cc\u9762\u7684ipv4\u7684forward\u529f\u80fd\u5df2\u7ecf\u7528sysctl\u547d\u4ee4\u6253\u5f00\u4e86\uff0c\u90a3\u4e48\u5bf9\u4e8e\u672c\u673a\u7f51\u5361\u4e0a\u63a5\u53d7\u5230\u7684\u76ee\u7684\u5730\u5740\u4e0d\u5c5e\u4e8e\u672c\u673a\u4f46\u8def\u7531\u7ecf\u8fc7\u672c\u673a\u7684\u6570\u636e\u5305\uff0c\u662f\u4f1a\u7ecf\u7531\u672c\u673a\u8def\u7531\u5224\u65ad\u540e\u4f20\u9012\u5230\u5bf9\u5e94\u7684\u7f51\u5361\u4e0a\u53d1\u51fa\u53bb\u7684\u3002\u4e00\u5b9a\u6ce8\u610f\uff0c\u662f\u7ecf\u7531\u672c\u673a\u8def\u7531\u5224\u65ad\u540e\u624d\u53d1\u51fa\u53bb\u7684\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u662f\u53d1\u9001\u6570\u636e\u7684\u90a3\u4e2a\u673a\u5668\u7684\u5730\u5740\uff0c\u800c\u5e76\u4e0d\u662f\u672c\u673a\u5730\u5740\uff0c\u672c\u673a\u8def\u7531\u4e2d\u7684src\u53c2\u6570\u5bf9\u4e8e\u8fd9\u4e2a\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u662f\u6ca1\u6709\u4efb\u4f55\u5f71\u54cd\u7684\u3002\u672c\u673a\u53ea\u4f1a\u6309\u7167dev\u53c2\u6570\u7684\u8981\u6c42\u5c06\u5176\u9001\u8fbe\u5bf9\u5e94\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u4ee5\u53ca\u5bf9\u5e94\u7684\u4e0b\u4e00\u8df3\u8def\u7531\u5668\u3002<\/p>\n

\u63a5\u7740\u8bf4iptables\u5e72\u4e86\u5565\uff0ciptables\u5728\u8fd9\u4ef6\u4e8b\u60c5\u4e0a\u6700\u4e3b\u8981\u7684\u662f\u4f1a\u901a\u8fc7NAT\u5f71\u54cd\u53d1\u51fa\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u3002\u5982\u679c\u4f60\u8981\u7528Ubuntu\u505a\u4e00\u4e2a\u7f51\u5173\uff0c\u90a3\u4e48\u5f88\u591a\u65f6\u5019\u4f1a\u7528\u5230\u4e0b\u9762\u8fd9\u4e2a\u547d\u4ee4\uff1a<\/p>\n

iptables  -t nat -A POSTROUTING -j MASQUERADE<\/p>\n

\u5fc5\u987b\u8bf4\u660e\u7684\u662f\uff0c\u8fd9\u4e2a\u547d\u4ee4\u5b9e\u9645\u662f\u505a\u4e86\u6e90\u5730\u5740NAT\uff0c\u662f\u4e0b\u9762\u547d\u4ee4\u7684\u4e00\u4e2a\u81ea\u52a8\u5316\u7248\u672c<\/p>\n

iptables -t nat -A POSTROUTING -j SNAT –to-source nnn.nnn.nnn.nnn<\/p>\n

\u5176\u4e2dnnn.nnn.nnn.nnn\u5c31\u662f\u7f51\u5173\u7684WAN\u5730\u5740\uff0c\u8fd9\u662f\u4f1a\u88ab\u76f4\u63a5\u586b\u5230\u5916\u53d1\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u91cc\u9762\u7684\uff0c\u8bf7\u6ce8\u610f\uff0c\u8fd9\u5df2\u7ecf\u662f\u5728\u5b8c\u6210\u672c\u673a\u8def\u7531\u4e4b\u540e\u4e86\u3002\u5982\u679c\u4f60\u5728iptables\u91cc\u9762\u4e0d\u505a-o\u5224\u65ad\uff0c\u90a3\u4e48\u8fd9\u662f\u4f1a\u5728\u6240\u6709\u7f51\u5361\u4e0a\u751f\u6548\u7684\u3002\u5982\u679c\u4f60\u6709\u4e24\u4e2aWAN\u5730\u5740\uff0c\u5728\u540c\u4e00\u4e2a\u7f51\u5361\u4e0a\uff0c\u90a3\u4e48\u4f60\u7528SNAT\u7684\u65f6\u5019\uff0c\u662f\u53ef\u4ee5\u624b\u5de5\u6307\u5b9aNAT\u7684\u6e90\u5730\u5740\u7684\uff0c\u8fd9\u76f8\u5f53\u4e8e\u5728NAT\u5c42\u9762\u4e0a\u5b9e\u73b0\u8def\u7531\u8868\u91cc\u9762\u7684src\u53c2\u6570\u3002<\/p>\n

\u7136\u800c\uff0c\u5982\u679c\u662fMASQUERADE\u7684\u8bdd\uff0c\u662f\u4f1a\u81ea\u52a8\u9009\u62e9IP\u5730\u5740\u7684\uff0c\u7279\u522b\u662f\uff0c\u5982\u679c\u5728\u4e00\u4e2aNIC\u4e0a\u6709\u51e0\u4e2aip\u7684\u8bdd\uff0cMASQUERADE\u662f\u4f1a\u9009\u62e9\u5176\u4e2d\u7684primary ip\u7684\u3002\u81f3\u4e8eprimary ip\u662f\u600e\u4e48\u51b3\u5b9a\u7684\uff0c\u8fd9\u91cc\u9762\u6709\u4e00\u4e9b\u89c4\u5219\uff0c\u5177\u4f53\u89c4\u5219\u53ef\u4ee5\u5728\u7f51\u7edc\u4e0a\u627e\u5230\u3002\u5927\u4f53\u6765\u8bf4\uff0c\u9996\u5148\u8bbe\u5b9a\u4e0a\u53bb\u7684\uff0c\u5c31\u662fprimary ip\u3002<\/p>\n

\u603b\u7ed3\u4e00\u4e0b\uff0cUbuntu\u7cfb\u7edf\u53d1\u51fa\u7684ip\u6570\u636e\u5305\u7684\u6e90\u5730\u5740\u662f\u8fd9\u6837\u51b3\u5b9a\u7684\u3002\u662f\u4e0d\u662f\u672c\u673a\u53d1\u51fa\u7684\u6570\u636e\u5305\uff0c\u5982\u679c\u662f\u7684\u8bdd\uff0c\u6839\u636e\u8def\u7531\u8868src\u53c2\u6570\u51b3\u5b9a\u540e\uff0c\u518d\u7531iptables\u7684NAT\u673a\u5236\u6539\u5199\u3002\u5982\u679c\u4e0d\u662f\u672c\u673a\u53d1\u51fa\u7684\uff0c\u4e0d\u53d7\u8def\u7531\u8868src\u53c2\u6570\u5f71\u54cd\uff0c\u4f46\u53d7iptables\u7684NAT\u673a\u5236\u5f71\u54cd\u3002\u81f3\u4e8e\u8fd9\u4e48\u7b80\u5355\u7684\u4e8b\u60c5\u4e3a\u4ec0\u4e48\u8981\u641e\u8fd9\u4e48\u590d\u6742\uff0c\u770b\u4e86\u6211\u540e\u9762\u7684Blog\u4e5f\u8bb8\u5c31\u660e\u767d\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5173\u952e\u5b57\uff1aiproute2\uff0ciptables\uff0cNAT\uff0cip address lab … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/270"}],"collection":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=270"}],"version-history":[{"count":2,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/270\/revisions"}],"predecessor-version":[{"id":272,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/270\/revisions\/272"}],"wp:attachment":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}