{"id":34465,"date":"2023-09-12T15:58:10","date_gmt":"2023-12-23T19:49:46","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8openflow%e3%80%81ruby%e3%80%81trema%e5%92%8copen-vswitch%e5%ae%9e%e7%8e%b0%e4%ba%86%e3%82%ba%e3%83%b3%e3%83%89%e3%82%b3%e3%82%ad%e3%83%a8%e3%82%b7%e5%8f%98%e6%8d%a2%e4%bb%a3%e7%90%86%e3%80%82\/"},"modified":"2024-05-03T23:24:23","modified_gmt":"2024-05-03T15:24:23","slug":"%e7%94%a8openflow%e3%80%81ruby%e3%80%81trema%e5%92%8copen-vswitch%e5%ae%9e%e7%8e%b0%e4%ba%86%e3%82%ba%e3%83%b3%e3%83%89%e3%82%b3%e3%82%ad%e3%83%a8%e3%82%b7%e5%8f%98%e6%8d%a2%e4%bb%a3%e7%90%86%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8openflow%e3%80%81ruby%e3%80%81trema%e5%92%8copen-vswitch%e5%ae%9e%e7%8e%b0%e4%ba%86%e3%82%ba%e3%83%b3%e3%83%89%e3%82%b3%e3%82%ad%e3%83%a8%e3%82%b7%e5%8f%98%e6%8d%a2%e4%bb%a3%e7%90%86%e3%80%82\/","title":{"rendered":"\u7528OpenFlow\u3001Ruby\u3001Trema\u548cOpen vSwitch\u5b9e\u73b0\u4e86\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u53d8\u6362\u4ee3\u7406"},"content":{"rendered":"

\u53d7\u5230ZUNDOKO\u534f\u8bae\u7684\u542f\u53d1\uff0c\u6211\u51b3\u5b9a\u4e58\u4e0a\u8fd9\u80a1\u5927\u6d6a\uff0c\u4f7f\u7528OpenFlow\u521b\u5efa\u4e86ZUNDOKO\u7ee7\u627f\u4ee3\u7406\u3002<\/p>\n

\u6700\u8fd1\u5728\u4e2d\u56fd\u975e\u5e38\u6d41\u884c\u7684\u201c\u5522\u5450\uff08Zundoko\uff09\u7948\u613f\u6587\u201d\u6e90\u81ea\u4e0b\u9762\u7684\u63a8\u6587\uff0c\u5df2\u7ecf\u5728\u591a\u79cd\u8bed\u8a00\u4e2d\u5b9e\u73b0\u5e76\u6574\u7406\u6210\u4e86\u5522\u5450\u7948\u613f\u6587\u6982\u89c8\u3002\u539f\u672c\u4ee5\u4e3a\u53ea\u5728\u7f16\u7a0b\u9886\u57df\u6d41\u884c\uff0c\u4f46\u6700\u8fd1\u5728\u7f51\u7edc\u4e0a\u4e5f\u51fa\u73b0\u4e86\u5229\u7528Pcap4J\u5b9e\u73b0\u5522\u5450\u7948\u613f\u6587\u534f\u8bae\u7684\u6848\u4f8b\u3002<\/p>\n

\u56e0\u4e3aJava\u7684\u8bfe\u7a0b\u8003\u8bd5\u8981\u6c42\u201c\u521b\u5efa\u5e76\u63cf\u8ff0\u4e00\u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u201d\uff0c\u6240\u4ee5\u6211\u5199\u4e86\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u4f1a\u6301\u7eed\u968f\u673a\u8f93\u51fa\u201c\u30ba\u30f3\u201d\u6216\u201c\u30c9\u30b3\u201d\uff0c\u76f4\u5230\u8f93\u51fa\u4e86\u201c\u30ba\u30f3\u201d\u3001\u201c\u30ba\u30f3\u201d\u3001\u201c\u30ba\u30f3\u201d\u3001\u201c\u30ba\u30f3\u201d\u3001\u201c\u30c9\u30b3\u201d\u8fd9\u4e2a\u6570\u7ec4\uff0c\u7136\u540e\u8f93\u51fa\u201c\u30ad\u30fb\u30e8\u30fb\u30b7\uff01\u201d\u5e76\u7ed3\u675f\u3002\u8fd9\u4e2a\u51fd\u6570\u83b7\u5f97\u4e86\u6ee1\u5206\u5e76\u62ff\u5230\u4e86\u5b66\u5206\u3002<\/p><\/blockquote>\n

\u5229\u7528\u7f51\u7edc\u6280\u80fd\uff0c\u4e3a\u4e86\u63d0\u5347\u6700\u8fd1\u5f00\u59cb\u5b66\u4e60\u7684OpenFlow\u6280\u80fd\uff0c\u6211\u5728OpenFlow\u63a7\u5236\u5668Trema\u4e2d\u5c1d\u8bd5\u5b9e\u73b0\u4e86\u4e00\u4e2a\u8f6c\u6362\u4ee3\u7406\uff0c\u5e76\u5728\u8fd9\u4e2a\u6d6a\u6f6e\u4e2d\u8bd5\u7740\u8ddf\u4e0a\u4e86\u8fdb\u5c55\u3002<\/p>\n

\u300c\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u5909\u63db\u30d7\u30ed\u30ad\u30b7\u300d\u7684\u542b\u4e49\u662f\u5c06\u8f93\u5165\u7684\u5185\u5bb9\u8f6c\u6362\u4e3a\u7c7b\u4f3c\u4e8e\u65e5\u672c\u4f20\u7edf\u97f3\u4e50\u6e38\u620f\u4e2d\u7684”\u30ba\u30f3\u30c9\u30b3”\u97f3\u9891\u7ec4\u5408\u7684\u4ee3\u7406\u5de5\u5177\u3002<\/h1>\n

\u5f53\u5728TCP\u901a\u4fe1\u7684\u6570\u636e\u6d41\u4e2d\u4ee5UTF-8\u7f16\u7801\u627e\u5230\u5b57\u7b26\u4e32”\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30c9\u30b3”\u65f6\uff0c\u5c06\u5176\u8f6c\u6362\u4e3a”\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30ba\u30f3\u30c9\u30b3 \u30ad\u30fb\u30e8\u30fb\u30b7\uff01”\uff08\u5373\u8fdb\u884c\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u8f6c\u6362\uff09\u3002<\/p>\n

\u6211\u5011\u9019\u6b21\u4f7f\u7528\u4e86ECHO\u5354\u8b70\uff08RFC 862\uff09\u4f86\u9a57\u8b49Zundoko Kiyoshi\u8f49\u63db\u4ee3\u7406\u7684\u904b\u4f5c\u3002<\/p>\n

\u6309\u7167\u4e0b\u9762\u7684\u56fe\u793a\uff0c\u4f7f\u7528OpenFlow\u5c06\u201cECHO\u5ba2\u6237\u7aef\u201d\u548c\u201cECHO\u670d\u52a1\u5668\u201d\u7684TCP\u901a\u4fe1\u8f6c\u53d1\u5230\u201cZUNDOKO TCP\u4ee3\u7406\u201d\u3002\u5728\u201cZUNDOKO TCP\u4ee3\u7406\u201d\u4e2d\uff0c\u5b83\u4ee3\u7406\u4e0e\u201cECHO\u670d\u52a1\u5668\u201d\u7684TCP\u901a\u4fe1\uff0c\u5e76\u5c06\u63a5\u6536\u5230\u7684\u6570\u636e\u8fdb\u884c\u201cZundoko Kiyoshi\u201d\u8f6c\u6362\uff0c\u7136\u540e\u53d1\u9001\u56de\u201cECHO\u5ba2\u6237\u7aef\u201d\u3002<\/p>\n

\"\u6982\u8981.PNG\"<\/div>\n

\u8fdb\u884c<\/h2>\n

\u6309\u7167\u4e0b\u56fe\u6240\u793a\uff0c\u901a\u8fc7”OpenFlow\u4ea4\u6362\u673a”\u5bf9\u76ee\u6807\u5730\u5740\u7aef\u53e3\u8fdb\u884c\u8f6c\u6362\uff08\u76ee\u6807NATP\u8f6c\u6362\uff09\uff0c\u5c06\u76ee\u6807\u626d\u66f2\u4e3a”TCP\u4ee3\u7406”\u3002
\n\u5f53”OpenFlow\u63a7\u5236\u5668”\u6536\u5230”TCP SYN”\u7684PACKET_IN\u65f6\uff0c\u4f1a\u4f7f\u7528FLOW_MOD\u8fdb\u884c\u6ce8\u518c\uff0c\u4ee5\u8fdb\u884c\u6b63\u5411\u6d41\u548c\u53cd\u5411\u6d41\u7684\u76ee\u6807NAPT\u8f6c\u6362\uff0c\u5e76\u5c06\u539f\u59cb\u6570\u636e\u5305\u53d1\u9001\u4e3aPACKET_OUT\u3002\u5728\u6ce8\u518c\u6d41\u4e4b\u540e\uff0c\u7531\u4e8e\u6240\u6709\u64cd\u4f5c\u90fd\u7531”OpenFlow\u4ea4\u6362\u673a”\u5b8c\u6210\uff0c\u56e0\u6b64\u4e0d\u4f1a\u518d\u4ea7\u751fPACKET_IN\u3002<\/p>\n

\"\u69cb\u6210.PNG\"<\/div>\n

NAPT\u7684\u95ee\u9898\u4e4b\u4e00\u662f\u5b9b\u5148\u95ee\u9898\u3002<\/h3>\n

\u666e\u901a\u7684\u60c5\u51b5\u4e0b\u8fdb\u884cNAPT\u8f6c\u6362\u65f6\uff0c\u539f\u59cb\u76ee\u6807\u5730\u5740\u5c06\u4f1a\u4e22\u5931\uff0c\u5bfc\u81f4\u5728TCP\u4ee3\u7406\u4e2d\u65e0\u6cd5\u786e\u5b9a\u76ee\u6807\u5730\u5740\u3002\u800c\u5728HTTP\u4ee3\u7406\u4e2d\uff0c\u7531\u4e8e\u76ee\u6807\u4fe1\u606f\u5b58\u5728\u4e8eHTTP\u8bf7\u6c42\u5934\u4e2d\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u89e3\u6790\u8bf7\u6c42\u5934\u6765\u786e\u5b9a\u76ee\u6807\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u901a\u7528\u7684TCP\u4ee3\u7406\uff0c\u7531\u4e8e\u7f3a\u4e4f\u7528\u4e8e\u89e3\u6790\u7684\u5934\u90e8\u4fe1\u606f\uff0c\u65e0\u6cd5\u786e\u5b9a\u76ee\u6807\u3002<\/p>\n

NAPT\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f<\/h3>\n

\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u6211\u4eec\u5c06\u5b9e\u65bd”\u76ee\u6807\u7f13\u5b58”\u3002\u6211\u4eec\u4f1a\u5c06\u672a\u7ecfNAPT\u8f6c\u6362\u7684\u76ee\u6807\u4fe1\u606f\u6ce8\u518c\u5230”\u76ee\u6807\u7f13\u5b58”\u4e2d\uff0c\u5e76\u5728TCP\u4ee3\u7406\u4e2d\u4f7f\u7528\u5b83\u6765\u786e\u5b9a\u76ee\u6807\u3002
\n“OpenFlow\u63a7\u5236\u5668”\u53ef\u4ee5\u4e86\u89e3\u8f6c\u6362\u4e4b\u524d\u7684\u76ee\u6807IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u6211\u4eec\u4f1a\u5c06”\u6e90IP\u5730\u5740\u548c\u7aef\u53e3\u53f7”\u4f5c\u4e3a”\u76ee\u6807\u7f13\u5b58”\u7684\u952e\uff0c\u5e76\u6ce8\u518c”\u76ee\u6807IP\u5730\u5740\u548c\u7aef\u53e3\u53f7”\u3002
\nTCP\u4ee3\u7406\u5c06\u53c2\u8003”\u76ee\u6807\u7f13\u5b58”\u6765\u786e\u5b9a\u76ee\u6807\uff0c\u5e76\u4f5c\u4e3a\u901a\u7528TCP\u4ee3\u7406\u8bbf\u95ee\u76ee\u6807\u670d\u52a1\u5668\u3002<\/p>\n

\u73af\u5883<\/h2>\n

\u4ee5\u4e0b\u662f\u6211\u4e3b\u8981\u4f7f\u7528\u7684\u8f6f\u4ef6\u548c\u5e93\u3002<\/p>\n

    \n
  • \n
      OpenFlow 1.0<\/ul>\n<\/li>\n<\/ul>\n

      \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9: Trema 0.10.1
      \n\u30b9\u30a4\u30c3\u30c1: Open vSwitch 2.0.2<\/p>\n

      Ubuntu 14.04<\/p>\n

      Memcached 1.4.14\uff1a\u5b9b\u5148\u30ad\u30e3\u30c3\u30b7\u30e5
      \nxinetd\uff1aecho\u30b5\u30fc\u30d0<\/p>\n

      Ruby 2.2.4<\/p>\n

      trema 0.10.1 : OpenFlow\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9
      \nmemcache-client 1.8.5 : \u5b9b\u5148\u30ad\u30e3\u30c3\u30b7\u30e5 \u30a2\u30af\u30bb\u30b9\u7528<\/p>\n

      \u6211\u5728VirtualBox\u4e0a\u8bbe\u7f6e\u4e86\u56db\u4e2a\u8fd0\u884cUbuntu\u7684\u7ec8\u7aef\uff0c\u5e76\u6784\u5efa\u4e86\u73af\u5883\u3002\u6211\u5c06\u7f51\u7edc\u5206\u5272\u4e3a\u5185\u90e8\u7cfb\u7edf\u548c\u7ba1\u7406\u7cfb\u7edf\u3002<\/p>\n

        \n
      • \n
          u01\u30db\u30b9\u30c8<\/ul>\n<\/li>\n<\/ul>\n

          ECHO\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff1azecho_client.rb\u3067\u5b9f\u88c5<\/p>\n

          u02\u30db\u30b9\u30c8<\/p>\n

          ECHO\u30b5\u30fc\u30d0\uff1axinetd\u3067TCP ECHO\u30b5\u30fc\u30d0\u3092\u52d5\u4f5c<\/p>\n

          u03\u30db\u30b9\u30c8<\/p>\n

          \u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u5909\u63db\u30d7\u30ed\u30ad\u30b7\uff1azecho_proxy.rb\u3067\u5b9f\u88c5<\/p>\n

          ovs1\u30db\u30b9\u30c8<\/p>\n

          OpenFlow\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\uff08Trema\uff09\uff1azecho_trema.rb\u3067\u5b9f\u88c5
          \nOpenFlow\u30b9\u30a4\u30c3\u30c1\uff08Open vSwitch\uff09\uff1aOVS\u3067u01\u30db\u30b9\u30c8\u3068\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092L2\u30d6\u30ea\u30c3\u30b8
          \n\u5b9b\u5148\u30ad\u30e3\u30c3\u30b7\u30e5\uff08memcached\u30b5\u30fc\u30d0\uff09<\/p>\n

          \"\u74b0\u5883.PNG\"<\/div>\n

          ovs1 \u4e3b\u673a<\/h2>\n

          ovs1\u30db\u30b9\u30c8\u3067\u306f\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306bOpenFlow\u30b9\u30a4\u30c3\u30c1\u306e\u8a2d\u5b9a\u3057\u307e\u3059\u3002OVS\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066ofs0\u3092\u5b9a\u7fa9\u3057\u3001\u30dd\u30fc\u30c8\u3068\u7269\u7406\u30dd\u30fc\u30c8\u3092\u52a0\u3048\u307e\u3059\u3002\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u306eOpenFlow\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

          sudo ovs-vsctl init\r\nsudo ovs-vsctl add-br ofs0\r\nsudo ifconfig eth1 up\r\nsudo ifconfig eth2 up\r\n\r\nsudo ovs-vsctl add-port ofs0 eth1\r\nsudo ovs-vsctl add-port ofs0 eth2\r\n\r\nsudo ovs-vsctl set bridge ofs0 protocols=OpenFlow10\r\nsudo ovs-vsctl set-controller ofs0 tcp:127.0.0.1:6653\r\n<\/code><\/pre>\n
          \u8bbe\u7f6e\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
          $ sudo ovs-vsctl show\r\nce3126fd-82dd-4f67-abdd-a19aa23ef05e\r\n    Bridge \"ofs0\"\r\n        Controller \"tcp:127.0.0.1:6653\"\r\n            is_connected: true\r\n        Port \"eth2\"\r\n            Interface \"eth2\"\r\n        Port \"ofs0\"\r\n            Interface \"ofs0\"\r\n                type: internal\r\n        Port \"eth1\"\r\n            Interface \"eth1\"\r\n    ovs_version: \"2.0.2\"\r\n<\/code><\/pre>\n
          \u6e90\u4ee3\u7801
          \n\u7f16\u7a0b\u6e90\u4ee3\u7801<\/h2>\n
          ECHO\u5ba2\u6237\u7aef<\/h3>\n
          \u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u811a\u672c\uff0c\u5b83\u4f1a\u5411TCP ECHO\u7aef\u53e3\uff08TCP7\u53f7\uff09\u53d1\u9001\u968f\u673a\u751f\u6210\u7684\u201c\u30ba\u30f3\u201d\u548c\u201c\u30c9\u30b3\u201d\u5b57\u7b26\u4e32\uff0c\u5e76\u663e\u793a\u63a5\u6536\u7ed3\u679c\u3002<\/p>\n
          require<\/span> 'socket'<\/span>\r\nsocket<\/span> =<\/span> TCPSocket<\/span>.<\/span>open<\/span>(<\/span>'172.16.0.2'<\/span>,<\/span> 7<\/span>)<\/span>\r\nwords<\/span> =<\/span> %w(\u30ba\u30f3 \u30c9\u30b3)<\/span>\r\n10<\/span>.<\/span>times<\/span> do<\/span>\r\n  string<\/span> =<\/span> Array<\/span>.<\/span>new<\/span>(<\/span>5<\/span>)<\/span> {<\/span> words<\/span>.<\/span>sample<\/span> }.<\/span>join<\/span>\r\n  puts<\/span> \"SEND: <\/span>#{<\/span>string<\/span>}<\/span>\"<\/span>\r\n  socket<\/span>.<\/span>puts<\/span> string<\/span>\r\n  puts<\/span> \"RECV: <\/span>#{<\/span>socket<\/span>.<\/span>gets<\/span>}<\/span>\"<\/span>\r\n  puts<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
          \u6253\u5f00\u6d41\u63a7\u5236\u5668<\/h3>\n
          switch_ready\u30e1\u30bd\u30c3\u30c9:
          \n\u4eca\u56de\u306fu01\u30db\u30b9\u30c8\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30d1\u30b1\u30c3\u30c8\u306e\u307f\u3092\u51e6\u7406\u5bfe\u8c61\u3068\u3059\u308b\u305f\u3081\u3001u01\u4ee5\u5916\u306e\u30dd\u30fc\u30c8\u304b\u3089\u306e\u901a\u4fe1\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u901a\u4fe1\u7528\u306e\u901a\u4fe1\u30d5\u30ed\u30fc\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
          packet_in\u30e1\u30bd\u30c3\u30c9:
          \nu01\u30db\u30b9\u30c8\u304b\u3089\u53d7\u4fe1\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u3092\u3001NAPT\u5909\u63db\u5bfe\u8c61\u304b\u3069\u3046\u304bsend_nat_packet_and_add_nat_flow\u3067\u632f\u308a\u5206\u3051\u3066\u3001NAPT\u5909\u63db\u5bfe\u8c61\u5916\u3060\u3063\u305f\u5834\u5408\u306f\u3001\u901a\u5e38\u901a\u308aPACKET_OUT\u3057\u307e\u3059\u3002<\/p>\n
          send_nat_packet_and_add_nat_flow\u30e1\u30bd\u30c3\u30c9:
          \nNAPT\u5909\u63db\u5bfe\u8c61\u306eTCP\u30d1\u30b1\u30c3\u30c8\u3060\u3063\u305f\u5834\u5408\u306b\u306f\u3001NAPT\u5909\u63db\u7528\u306e\u9806\u65b9\u5411\u30d5\u30ed\u30fc\u30c8\u9006\u65b9\u5411\u30d5\u30ed\u30fc\u3092OpenFlow\u30b9\u30a4\u30c3\u30c1\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u4f75\u305b\u3066\u300c\u5b9b\u5148\u30ad\u30e3\u30c3\u30b7\u30e5\u300d\u306b\u5b9b\u5148\u60c5\u5831\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u5f8cPACKET_OUT\u3057\u307e\u3059\u3002<\/p>\n
          require<\/span> 'memcache'<\/span>\r\n\r\nMEMCACHE<\/span> =<\/span> MemCache<\/span>.<\/span>new<\/span> '192.168.88.4:11211'<\/span>\r\n\r\nPROXY_L1_PORT<\/span>  =<\/span> 2<\/span>\r\nPROXY_MAC<\/span>      =<\/span> '08:00:27:b6:63:f2'<\/span>.<\/span>freeze<\/span>\r\nPROXY_IP<\/span>       =<\/span> '172.16.0.3\/32'<\/span>.<\/span>freeze<\/span>\r\nPROXY_TCP_PORT<\/span> =<\/span> 10000<\/span>\r\n\r\nINTERNAL_PORT<\/span> =<\/span> 1<\/span>\r\nEXTERNAL_PORT<\/span> =<\/span> 2<\/span>\r\nIP_PROTO_TCP<\/span> =<\/span> 6<\/span>\r\n\r\n# ZEcho Trema<\/span>\r\nclass<\/span> ZechoTrema<\/span> <<\/span> Trema<\/span>::<\/span>Controller<\/span>\r\n  def<\/span> start<\/span>(<\/span>_args<\/span>)<\/span>\r\n    logger<\/span>.<\/span>info<\/span> \"<\/span>#{<\/span>name<\/span>}<\/span> started.\"<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> switch_ready<\/span>(<\/span>datapath_id<\/span>)<\/span>\r\n    logger<\/span>.<\/span>info<\/span> \"switch_ready: <\/span>#{<\/span>datapath_id<\/span>}<\/span>\"<\/span>\r\n    send_flow_mod_add<\/span>(<\/span>\r\n      datapath_id<\/span>,<\/span>\r\n      match: <\/span>Match<\/span>.<\/span>new<\/span>(<\/span>in_port: <\/span>EXTERNAL_PORT<\/span>),<\/span>\r\n      actions: <\/span>SendOutPort<\/span>.<\/span>new<\/span>(<\/span>INTERNAL_PORT<\/span>)<\/span>\r\n    )<\/span>\r\n    send_flow_mod_add<\/span>(<\/span>\r\n      datapath_id<\/span>,<\/span>\r\n      match: <\/span>Match<\/span>.<\/span>new<\/span>(<\/span>destination_mac_address: <\/span>'FF:FF:FF:FF:FF:FF'<\/span>),<\/span>\r\n      actions: <\/span>SendOutPort<\/span>.<\/span>new<\/span>(<\/span>:flood<\/span>)<\/span>\r\n    )<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> switch_disconnected<\/span>(<\/span>datapath_id<\/span>)<\/span>\r\n    logger<\/span>.<\/span>info<\/span> \"switch_disconnected: <\/span>#{<\/span>datapath_id<\/span>}<\/span>\"<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> packet_in<\/span>(<\/span>datapath_id<\/span>,<\/span> message<\/span>)<\/span>\r\n    packet_send<\/span> =<\/span> send_nat_packet_and_add_nat_flow<\/span>(<\/span>datapath_id<\/span>,<\/span> message<\/span>)<\/span>\r\n    unless<\/span> packet_send<\/span>\r\n      send_packet_out<\/span>(<\/span>\r\n        datapath_id<\/span>,<\/span>\r\n        packet_in: <\/span>message<\/span>,<\/span>\r\n        actions: <\/span>SendOutPort<\/span>.<\/span>new<\/span>(<\/span>EXTERNAL_PORT<\/span>)<\/span>\r\n      )<\/span>\r\n    end<\/span>\r\n  end<\/span>\r\n\r\n  private<\/span>\r\n\r\n  def<\/span> send_nat_packet_and_add_nat_flow<\/span>(<\/span>datapath_id<\/span>,<\/span> message<\/span>)<\/span>\r\n    return<\/span> false<\/span> unless<\/span> message<\/span>.<\/span>in_port<\/span> ==<\/span> INTERNAL_PORT<\/span>\r\n    return<\/span> false<\/span> unless<\/span> Pio<\/span>::<\/span>Parser<\/span>::<\/span>IPv4Packet<\/span> ==<\/span> message<\/span>.<\/span>data<\/span>.<\/span>class<\/span>\r\n    return<\/span> false<\/span> unless<\/span> message<\/span>.<\/span>ip_protocol<\/span> ==<\/span> IP_PROTO_TCP<\/span>\r\n\r\n    src_mac<\/span>  =<\/span> message<\/span>.<\/span>source_mac<\/span>\r\n    src_ip<\/span>   =<\/span> message<\/span>.<\/span>source_ip_address<\/span>\r\n    src_port<\/span> =<\/span> message<\/span>.<\/span>transport_source_port<\/span>\r\n\r\n    dst_mac<\/span>  =<\/span> message<\/span>.<\/span>destination_mac<\/span>\r\n    dst_ip<\/span>   =<\/span> message<\/span>.<\/span>destination_ip_address<\/span>\r\n    dst_port<\/span> =<\/span> message<\/span>.<\/span>transport_destination_port<\/span>\r\n\r\n    MEMCACHE<\/span>.<\/span>set<\/span> \"<\/span>#{<\/span>src_ip<\/span>}<\/span>:<\/span>#{<\/span>src_port<\/span>}<\/span>\"<\/span>,<\/span> \"<\/span>#{<\/span>dst_ip<\/span>}<\/span>:<\/span>#{<\/span>dst_port<\/span>}<\/span>\"<\/span>\r\n    logger<\/span>.<\/span>info<\/span> \"NAT <\/span>#{<\/span>src_ip<\/span>}<\/span>:<\/span>#{<\/span>src_port<\/span>}<\/span> => <\/span>#{<\/span>dst_ip<\/span>}<\/span>:<\/span>#{<\/span>dst_port<\/span>}<\/span> via <\/span>#{<\/span>PROXY_IP<\/span>}<\/span>:<\/span>#{<\/span>PROXY_TCP_PORT<\/span>}<\/span>\"<\/span>\r\n\r\n    # forward rule<\/span>\r\n    forward_match<\/span> =<\/span> ExactMatch<\/span>.<\/span>new<\/span>(<\/span>message<\/span>)<\/span>\r\n    forward_actions<\/span> =<\/span> [<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetDestinationMacAddress<\/span>.<\/span>new<\/span>(<\/span>PROXY_MAC<\/span>),<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetDestinationIpAddress<\/span>.<\/span>new<\/span>(<\/span>PROXY_IP<\/span>),<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetTransportDestinationPort<\/span>.<\/span>new<\/span>(<\/span>PROXY_TCP_PORT<\/span>),<\/span>\r\n      SendOutPort<\/span>.<\/span>new<\/span>(<\/span>PROXY_L1_PORT<\/span>)<\/span>\r\n    ]<\/span>\r\n    send_flow_mod_add<\/span>(<\/span>\r\n      datapath_id<\/span>,<\/span>\r\n      priority: <\/span>1000<\/span>,<\/span>\r\n      idle_timeout: <\/span>300<\/span>,<\/span>\r\n      match: <\/span>forward_match<\/span>,<\/span>\r\n      actions: <\/span>forward_actions<\/span>\r\n    )<\/span>\r\n\r\n    # reverse rule<\/span>\r\n    reverse_match<\/span> =<\/span> ExactMatch<\/span>.<\/span>new<\/span>(<\/span>message<\/span>)<\/span>\r\n    reverse_match<\/span>.<\/span>in_port<\/span>                    =<\/span> PROXY_L1_PORT<\/span>\r\n    reverse_match<\/span>.<\/span>source_mac_address<\/span>         =<\/span> PROXY_MAC<\/span>\r\n    reverse_match<\/span>.<\/span>destination_mac_address<\/span>    =<\/span> src_mac<\/span>\r\n    reverse_match<\/span>.<\/span>source_ip_address<\/span>          =<\/span> PROXY_IP<\/span>\r\n    reverse_match<\/span>.<\/span>destination_ip_address<\/span>     =<\/span> src_ip<\/span>\r\n    reverse_match<\/span>.<\/span>transport_source_port<\/span>      =<\/span> PROXY_TCP_PORT<\/span>\r\n    reverse_match<\/span>.<\/span>transport_destination_port<\/span> =<\/span> src_port<\/span>\r\n    reverse_actions<\/span> =<\/span> [<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetSourceMacAddress<\/span>.<\/span>new<\/span>(<\/span>dst_mac<\/span>),<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetSourceIpAddress<\/span>.<\/span>new<\/span>(<\/span>dst_ip<\/span>),<\/span>\r\n      Pio<\/span>::<\/span>OpenFlow10<\/span>::<\/span>SetTransportSourcePort<\/span>.<\/span>new<\/span>(<\/span>dst_port<\/span>),<\/span>\r\n      SendOutPort<\/span>.<\/span>new<\/span>(<\/span>message<\/span>.<\/span>in_port<\/span>)<\/span>\r\n    ]<\/span>\r\n    send_flow_mod_add<\/span>(<\/span>\r\n      datapath_id<\/span>,<\/span>\r\n      priority: <\/span>1000<\/span>,<\/span>\r\n      idle_timeout: <\/span>300<\/span>,<\/span>\r\n      match: <\/span>reverse_match<\/span>,<\/span>\r\n      actions: <\/span>reverse_actions<\/span>\r\n    )<\/span>\r\n\r\n    send_packet_out<\/span>(<\/span>\r\n      datapath_id<\/span>,<\/span>\r\n      packet_in: <\/span>message<\/span>,<\/span>\r\n      actions: <\/span>forward_actions<\/span>\r\n    )<\/span>\r\n\r\n    return<\/span> true<\/span>\r\n  rescue<\/span> NotImplementedError<\/span> =><\/span> e<\/span>\r\n    logger<\/span>.<\/span>error<\/span> \"<\/span>#{<\/span>e<\/span>}<\/span>: <\/span>#{<\/span>message<\/span>.<\/span>data<\/span>}<\/span>\"<\/span>\r\n  end<\/span>\r\n\r\n  false<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
          \u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u5909\u63db\u30d7\u30ed\u30ad\u30b7<\/h3>\n
          \u8fd9\u4e2aZechoProxyServer\u7c7b\u4f1a\u5728\u4ee3\u7406\u7aef\u53e3\u4e0a\u8fdb\u884c\u76d1\u542c\uff0c\u5e76\u4e14\u7531ZechoProxyClient\u7c7b\u52a8\u6001\u751f\u6210\uff0c\u6bcf\u5f53\u6709\u8fde\u63a5\u8bf7\u6c42\u65f6\u3002<\/p>\n
          ZechoProxyServer\u7c7b\uff1a
          \n\u8be5\u7c7b\u76d1\u542cPROXY_TCP_PORT\u7aef\u53e3\uff0c\u5f53\u63a5\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u4f1a\u751f\u6210\u4e00\u4e2aZechoProxyClient\u7c7b\u7684\u5b9e\u4f8b\u3002\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u73b0\u3002<\/p>\n
          ZechoProxyClient\u7c7b\uff1a
          \n\u6839\u636e\u53d1\u9001\u65b9\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u67e5\u9605”\u76ee\u6807\u7f13\u5b58”\uff0c\u83b7\u53d6\u8fde\u63a5\u7684\u76ee\u6807IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u7136\u540e\uff0c\u901a\u8fc7TCPSocket.new\u4e0e\u76ee\u6807\u5efa\u7acb\u8fde\u63a5\u3002
          \n\u751f\u6210\u7528\u4e8e\u53d1\u9001\u548c\u63a5\u6536\u7684\u7ebf\u7a0b\uff0c\u5c06\u4ece\u670d\u52a1\u5668\u63a5\u6536\u7684\u6570\u636e\u4f20\u9012\u7ed9zundoko\u65b9\u6cd5\uff0c\u6267\u884c”\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7”\u8f6c\u6362\uff0c\u5e76\u5c06\u5176\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n
          require<\/span> 'socket'<\/span>\r\nrequire<\/span> 'memcache'<\/span>\r\n\r\nPROXY_TCP_PORT<\/span> =<\/span> 10_000<\/span>\r\nMEMCACHE<\/span> =<\/span> MemCache<\/span>.<\/span>new<\/span> '192.168.88.4:11211'<\/span>\r\nZUNDOKO_REGEXP<\/span> =<\/span> \/((\u30ba\u30f3\\s*){4}\u30c9\u30b3)\/<\/span>\r\n\r\nIPPort<\/span> =<\/span> Struct<\/span>.<\/span>new<\/span>(<\/span>:ip<\/span>,<\/span> :port<\/span>)<\/span>\r\nThread<\/span>.<\/span>abort_on_exception<\/span> =<\/span> true<\/span>\r\n\r\n# ZEchoProxy<\/span>\r\nclass<\/span> ZechoProxyClient<\/span>\r\n  def<\/span> initialize<\/span>(<\/span>server_socket<\/span>)<\/span>\r\n    @threads<\/span> =<\/span> []<\/span>\r\n    @server_socket<\/span> =<\/span> server_socket<\/span>\r\n    @client_socket<\/span>,<\/span> @src<\/span>,<\/span> @dst<\/span> =<\/span> lookup_nat_table<\/span>(<\/span>server_socket<\/span>)<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> run<\/span>\r\n    puts<\/span> \"<\/span>#{<\/span>self<\/span>}<\/span>: start proxy client\"<\/span>\r\n    return<\/span> unless<\/span> @client_socket<\/span>\r\n\r\n    @threads<\/span> <<<\/span> Thread<\/span>.<\/span>new<\/span> do<\/span>\r\n      begin<\/span>\r\n        while<\/span> data<\/span> =<\/span> @server_socket<\/span>.<\/span>recv<\/span>(<\/span>65535<\/span>)<\/span>\r\n          break<\/span> if<\/span> data<\/span>.<\/span>size<\/span> ==<\/span> 0<\/span>\r\n          @client_socket<\/span>.<\/span>write<\/span>(<\/span>data<\/span>)<\/span>\r\n          @client_socket<\/span>.<\/span>flush<\/span>\r\n        end<\/span>\r\n      rescue<\/span> IOError<\/span>\r\n      ensure<\/span>\r\n        close<\/span>\r\n      end<\/span>\r\n    end<\/span>\r\n    @threads<\/span> <<<\/span> Thread<\/span>.<\/span>new<\/span> do<\/span>\r\n      begin<\/span>\r\n        while<\/span> data<\/span> =<\/span> @client_socket<\/span>.<\/span>recv<\/span>(<\/span>65535<\/span>)<\/span>\r\n          break<\/span> if<\/span> data<\/span>.<\/span>size<\/span> ==<\/span> 0<\/span>\r\n          data<\/span> =<\/span> zundoko<\/span>(<\/span>data<\/span>)<\/span>\r\n          @server_socket<\/span>.<\/span>write<\/span>(<\/span>data<\/span>)<\/span>\r\n          @server_socket<\/span>.<\/span>flush<\/span>\r\n        end<\/span>\r\n      rescue<\/span> IOError<\/span>\r\n      ensure<\/span>\r\n        close<\/span>\r\n      end<\/span>\r\n    end<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> close<\/span>\r\n    @client_socket<\/span>.<\/span>close<\/span> unless<\/span> @client_socket<\/span>.<\/span>closed?<\/span>\r\n    @server_socket<\/span>.<\/span>close<\/span> unless<\/span> @server_socket<\/span>.<\/span>closed?<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> join<\/span>\r\n    @threads<\/span>.<\/span>map<\/span> {<\/span> |<\/span>t<\/span>|<\/span> t<\/span>.<\/span>join<\/span> if<\/span> t<\/span> }<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> to_s<\/span>\r\n    \"<\/span>#{<\/span>@src<\/span>.<\/span>ip<\/span>}<\/span>:<\/span>#{<\/span>@src<\/span>.<\/span>port<\/span>}<\/span> => <\/span>#{<\/span>@dst<\/span>.<\/span>ip<\/span>}<\/span>:<\/span>#{<\/span>@dst<\/span>.<\/span>port<\/span>}<\/span>\"<\/span>\r\n  end<\/span>\r\n\r\n  private<\/span>\r\n\r\n  def<\/span> zundoko<\/span>(<\/span>data<\/span>)<\/span>\r\n    begin<\/span>\r\n      encoded_data<\/span> =<\/span> data<\/span>.<\/span>encode<\/span>(<\/span>'UTF-8'<\/span>,<\/span> 'UTF-8'<\/span>,<\/span> invalid: :replace<\/span>,<\/span> undef: :replace<\/span>)<\/span>\r\n      if<\/span> ZUNDOKO_REGEXP<\/span> ===<\/span> encoded_data<\/span>\r\n        data<\/span> =<\/span> encoded_data<\/span>.<\/span>gsub<\/span>(<\/span>ZUNDOKO_REGEXP<\/span>)<\/span> {<\/span> \"<\/span>#{<\/span>$1<\/span>}<\/span> \u30ad\u30fb\u30e8\u30fb\u30b7\uff01\"<\/span> }<\/span>\r\n      end<\/span>\r\n    rescue<\/span> ArgumentError<\/span>\r\n    rescue<\/span> =><\/span> e<\/span>\r\n      puts<\/span> \"<\/span>#{<\/span>e<\/span>.<\/span>class<\/span>}<\/span> #{<\/span>e<\/span>}<\/span>\"<\/span>\r\n    end<\/span>\r\n    data<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> lookup_nat_table<\/span>(<\/span>server_socket<\/span>)<\/span>\r\n    _inet<\/span>,<\/span> src_port<\/span>,<\/span> _src_host<\/span>,<\/span> src_ip<\/span> =<\/span> server_socket<\/span>.<\/span>peeraddr<\/span>\r\n    client_socket<\/span> =<\/span> nil<\/span>\r\n    src<\/span> =<\/span> IPPort<\/span>.<\/span>new<\/span>(<\/span>src_ip<\/span>,<\/span> src_port<\/span>.<\/span>to_s<\/span>)<\/span>\r\n    dst<\/span> =<\/span> IPPort<\/span>.<\/span>new<\/span>\r\n    ip_port_key<\/span> =<\/span> \"<\/span>#{<\/span>src<\/span>.<\/span>ip<\/span>}<\/span>:<\/span>#{<\/span>src<\/span>.<\/span>port<\/span>}<\/span>\"<\/span>\r\n    10<\/span>.<\/span>times<\/span> do<\/span>\r\n      ip_port<\/span> =<\/span> MEMCACHE<\/span>.<\/span>get<\/span>(<\/span>ip_port_key<\/span>)<\/span>\r\n      if<\/span> ip_port<\/span>\r\n        MEMCACHE<\/span>.<\/span>delete<\/span>(<\/span>ip_port_key<\/span>)<\/span>\r\n        dst<\/span>.<\/span>ip<\/span>,<\/span> dst<\/span>.<\/span>port<\/span> =<\/span> ip_port<\/span>.<\/span>split<\/span>(<\/span>\/:\/<\/span>)<\/span>\r\n        client_socket<\/span> =<\/span> TCPSocket<\/span>.<\/span>new<\/span>(<\/span>dst<\/span>.<\/span>ip<\/span>,<\/span> dst<\/span>.<\/span>port<\/span>)<\/span>\r\n        break<\/span>\r\n      end<\/span>\r\n      sleep<\/span> 0.5<\/span>\r\n    end<\/span>\r\n    [<\/span>client_socket<\/span>,<\/span> src<\/span>,<\/span> dst<\/span>]<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n\r\n# ZEchoProxyServer<\/span>\r\nclass<\/span> ZechoProxyServer<\/span>\r\n  def<\/span> initialize<\/span>(<\/span>port<\/span> =<\/span> PROXY_TCP_PORT<\/span>)<\/span>\r\n    @threads<\/span> =<\/span> []<\/span>\r\n    @port<\/span> =<\/span> port<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> run<\/span>\r\n    puts<\/span> \"proxy server start: port:<\/span>#{<\/span>@port<\/span>}<\/span>\"<\/span>\r\n    @threads<\/span> <<<\/span> Thread<\/span>.<\/span>new<\/span> do<\/span>\r\n      tcp_server<\/span> =<\/span> TCPServer<\/span>.<\/span>open<\/span>(<\/span>@port<\/span>)<\/span>\r\n      loop<\/span> do<\/span>\r\n        socket<\/span> =<\/span> tcp_server<\/span>.<\/span>accept<\/span>\r\n        client<\/span> =<\/span> ZechoProxyClient<\/span>.<\/span>new<\/span>(<\/span>socket<\/span>)<\/span>\r\n        client<\/span>.<\/span>run<\/span>\r\n      end<\/span>\r\n    end<\/span>\r\n  end<\/span>\r\n\r\n  def<\/span> join<\/span>\r\n    @threads<\/span>.<\/span>map<\/span> {<\/span> |<\/span>t<\/span>|<\/span> t<\/span>.<\/span>join<\/span> if<\/span> t<\/span> }<\/span>\r\n  end<\/span>\r\nend<\/span>\r\n\r\nif<\/span> __FILE__<\/span> ==<\/span> $0<\/span>\r\n  server<\/span> =<\/span> ZechoProxyServer<\/span>.<\/span>new<\/span>\r\n  server<\/span>.<\/span>run<\/span>\r\n  server<\/span>.<\/span>join<\/span>\r\nend<\/span>\r\n<\/code><\/pre>\n
          \u6267\u884c\u7ed3\u679c<\/h2>\n
          \u5728ECHO\u5ba2\u6237\u7aef\u7684\u63a7\u5236\u53f0\u754c\u9762\u4e0a\uff0cECHO\u5ba2\u6237\u7aef\u4f1a\u968f\u673a\u53d1\u9001”\u30ba\u30f3\u30c9\u30b3”\u7ed9ECHO\u670d\u52a1\u5668\uff0c\u5982\u679c\u6761\u4ef6\u5339\u914d\uff0c\u4f1a\u989d\u5916\u663e\u793a”\u30ad\u30fb\u30e8\u30fb\u30b7\uff01”\u3002<\/p>\n
          \"\u5b9f\u884c\u7d50\u679cCLI.png\"<\/div>\n
          \u9644\u5f55<\/h1>\n
          \u4eca\u56de\u306f\u6c4e\u7528\u7684\u306aTCP\u30d7\u30ed\u30ad\u30b7\u3092\u5b9f\u88c5\u3057\u305f\u305f\u3081\u3001\u901a\u5e38\u306eWeb\u30d6\u30e9\u30a6\u30b6\u304b\u3089\u306e\u901a\u4fe1\u3082\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u5909\u63db\u3067\u304d\u307e\u3059\u3002
          \nu01\u30db\u30b9\u30c8\u3067Web\u30d6\u30e9\u30a6\u30b6\u3092\u8d77\u52d5\u3057\u3001u02\u30db\u30b9\u30c8\u3067\u4e0b\u8a18\u306eWeb\u30b5\u30fc\u30d0\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u5b9f\u884c\u7d50\u679c\u306f\u4e0b\u8a18\u306e\u3068\u304a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
          require<\/span> 'sinatra'<\/span>\r\nset<\/span> bind: <\/span>'0.0.0.0'<\/span>\r\nget<\/span> '\/'<\/span> do<\/span>\r\n  erb<\/span> :index<\/span>\r\nend<\/span>\r\n\r\n__END__\r\n@@ index\r\n<% words = %w(\u30ba\u30f3 \u30c9\u30b3) %>\r\n<html><head><\/head><body><ul>\r\n<% 100.times do %>\r\n<li><%= Array.new(5) { words.sample }.join %><\/li>\r\n<% end %>\r\n<\/ul><\/body><\/html>\r\n<\/span><\/code><\/pre>\n
          \"\u5b9f\u884c\u7d50\u679cWEB.png\"<\/div>\n
          \u5b9f\u969b\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u3082\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u30e1\u30b8\u30e3\u30fc\u306a\u30b5\u30a4\u30c8\u306fHTTPS\u306e\u305f\u3081\u3001\u6b8b\u5ff5\u306a\u304c\u3089\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u5909\u63db\u3092\u304b\u3051\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3053\u306e\u305f\u3081\u3001\u30ed\u30fc\u30ab\u30eb\u3067\u7c21\u6613\u306aWeb\u30b5\u30fc\u30d0\u3092\u7acb\u3061\u4e0a\u3052\u3066\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
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          @qb0c80aE\u3055\u3093\u63d0\u4f9b\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01<\/p>\n
          Trema\u3067OpenFlow\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0
          \n\u30ba\u30f3\u30c9\u30b3\u30ad\u30e8\u30b7\u307e\u3068\u3081<\/p>\n","protected":false},"excerpt":{"rendered":"
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