{"id":279,"date":"2022-05-30T14:43:07","date_gmt":"2022-05-30T06:43:07","guid":{"rendered":"http:\/\/blog.nanocorechip.com\/?p=279"},"modified":"2022-06-07T14:47:04","modified_gmt":"2022-06-07T06:47:04","slug":"it%e5%9f%ba%e7%a1%80%e6%9e%b6%e6%9e%84%e5%bb%ba%e8%ae%be-%e7%bd%91%e7%bb%9c","status":"publish","type":"post","link":"https:\/\/www.rchen.top\/?p=279","title":{"rendered":"\u7b2c\u56db\u7ae0\u3001IT\u57fa\u7840\u67b6\u6784\u5efa\u8bbe-\u7f51\u7edc"},"content":{"rendered":"<h2><a name=\"_Toc95815032\"><\/a>1.1.\u00a0 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width=\"94\"><strong>\u8bbe\u5907<\/strong><\/td>\n<td width=\"210\"><strong>\u56fd\u5916\u4ea7\u54c1<\/strong><\/td>\n<td width=\"231\"><strong>\u56fd\u5185\u4ea7\u54c1<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"94\">\u4ea4\u6362\/\u8def\u7531<\/td>\n<td width=\"210\">cisco\/juniper<\/td>\n<td width=\"231\">huawei\/h3c\/ruijie<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">\u9632\u706b\u5899<\/td>\n<td width=\"210\">juniper\/soniclwall<\/td>\n<td width=\"231\">huawei\/h3c\/ruijie\/hillstone<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">\u65e0\u7ebf<\/td>\n<td width=\"210\">aruba<\/td>\n<td width=\"231\">huawei\/h3c\/ruijie<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">\u5b89\u5168<\/td>\n<td width=\"210\">cisco\/soniclwall\/juniper<\/td>\n<td width=\"231\">\u5929\u878d\u4fe1\/\u6df1\u4fe1\u670d<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">\u8d1f\u8f7d\u5747\u8861<\/td>\n<td width=\"210\">F5\/A10<\/td>\n<td width=\"231\">\u6df1\u4fe1\u670d\/H3C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6211\u628a\u7f51\u7edc\u6309\u7167\u529f\u80fd\u5b9a\u4f4d\u5206\u6210\u4e09\u90e8\u5206\u89e3\u8bf4\uff1a\u529e\u516c\u7cfb\u7edf\u3001\u6570\u636e\u4e2d\u5fc3\u3001\u9aa8\u5e72\u4f20\u8f93\u3002<\/p>\n<h3><a name=\"_Toc95815033\"><\/a><a name=\"_Toc95205503\"><\/a><a name=\"_Toc95379497\"><\/a>1.1.1. 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loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-281\" src=\"http:\/\/www.rchen.top\/wp-content\/uploads\/2022\/05\/20220530-2.png\" alt=\"\" width=\"676\" height=\"729\" \/><\/p>\n<p>\u8981\u8003\u8651\u672a\u6765\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u7684\u53d1\u5c55\u8d8b\u52bf\uff0c\u907f\u514d\u9891\u7e41\u7684\u5272\u63a5\u66ff\u6362\u5347\u7ea7\u5e26\u6765\u7684\u4e1a\u52a1\u4e2d\u65ad\u3002<\/p>\n<p>\u53ef\u4ee5\u5c06\u7f51\u7edc\u5212\u5206\u51fa\u591a\u4e2a\u529f\u80fd\u533a\uff08\u5982\u4e0b\u56fe\uff09\uff0c\u6bcf\u4e2a\u529f\u80fd\u533a\u53ef\u4ee5\u901a\u8fc7ACL\u5212\u5206\u6210\u72ec\u7acb\u7684VPC\uff0c\u63d0\u9ad8\u4e86\u7f51\u7edc\u5b89\u5168\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-282\" src=\"http:\/\/www.rchen.top\/wp-content\/uploads\/2022\/05\/20220530-3.png\" alt=\"\" width=\"533\" height=\"512\" 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Interconnection)\u7f51\u7edc\uff0c\u4e5f\u5c31\u662f\u6240\u8c13\u7684\u4f01\u4e1a\u9aa8\u5e72\u7f51\u3002\u5176\u5b9e\u4e0d\u5149\u662f\u4e92\u8054\u7f51\u4f01\u4e1a\uff0c\u4f20\u7edf\u7684\u5236\u9020\u4e1a\u4f01\u4e1a\uff0c\u8de8\u56fd\u94f6\u884c\u7b49\u4e5f\u662f\u7c7b\u4f3c\u7684\u7f51\u7edc\u62d3\u6251\u5e03\u5c40\u3002<\/p>\n<p>\u5982\u679c\u4f01\u4e1a\u62e5\u6709\u4e86\u591a\u4e2aIDC\u6216\u8005\u5176\u5206\u516c\u53f8\u5206\u5e03\u5728\u591a\u4e2a\u7269\u7406\u533a\u57df\uff0c\u5c06\u8fd9\u4e2a\u5206\u6563\u7684\u5730\u70b9\u8fde\u63a5\u8d77\u6765\u5c31\u662f\u4e00\u4e2a\u8feb\u5207\u7684\u9700\u6c42\u3002\u95ee\u9898\u662f\u91c7\u7528\u4ec0\u4e48\u65b9\u5f0f\u8fde\u63a5\u5462\uff1f<\/p>\n<p>\u8fd9\u91cc\u63a8\u8350\u51e0\u79cd\u65b9\u6848\uff1a<\/p>\n<p><strong>a.\u7b2c\u4e00\u79cd\u65b9\u5f0f\uff1aSD-WAN\u7f51\u7edc<\/strong><\/p>\n<p>SD-WAN\u7684\u51fa\u73b0\u4e0d\u4ec5\u89e3\u51b3\u4e86\u4e92\u8054\u7f51\u4e0d\u7a33\u5b9a\u3001\u4e13\u7ebf\u9020\u4ef7\u6602\u8d35\u7684\u95ee\u9898\uff0c\u6700\u91cd\u8981\u7684\u662f\u80fd\u591f\u6781\u5927\u7a0b\u5ea6\u4e0a\u6ee1\u8db3\u8fd9\u4e9b\u5e94\u7528\u5373\u65f6\u6027\u548c\u5b9e\u65f6\u6027\u7684\u8981\u6c42\u3002<\/p>\n<p>SD-WAN\u4e0d\u662f\u4e00\u4e2a\u5177\u4f53\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u6bcf\u4e2a\u8fd0\u8425\u5546\u6216\u4ee3\u7406\u8fd0\u8425\u673a\u6784\u90fd\u6839\u636eSD-WAN\u89e3\u51b3\u65b9\u6848\u63a8\u51fa\u4e86\u81ea\u5df1\u7684\u89e3\u51b3\u65b9\u6848\u4ea7\u54c1\uff0c\u4f8b\u5982\u7535\u4fe1\u7684CN2\u7f51\u7edc\u3002<\/p>\n<p>CN2\u5168\u79f0\u4e3a\u4e2d\u56fd\u7535\u4fe1\u4e0b\u4e00\u4ee3\u627f\u8f7d\u7f51\uff0c\u82f1\u6587Chinatelecom Next Carrier Network\uff0c\u7f29\u5199\u4e3aCNCN\uff0c\u8fdb\u4e00\u6b65\u7f29\u5199\u4e3aCN2\u3002\u8fd0\u8425\u5546\u63d0\u4f9b\u7684\u4e00\u79cd\u94fe\u8def\u79df\u7528\u670d\u52a1\uff0c\u672c\u8d28\u662f\u91c7\u7528MPLS VPN\u96a7\u9053\u534f\u8bae\uff0c\u7528\u6237\u65e0\u9700\u5173\u5fc3\u4e24\u4e2aIDC\u4e4b\u95f4\u662f\u901a\u8fc7\u4ec0\u4e48\u65b9\u5f0f\u4f20\u8f93\uff0c\u8fd0\u8425\u5546\u4f1a\u6253\u901a\u4e24\u7aef\u7684\u4e09\u5c42\u7f51\u7edc\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u4e2d\u5fc3\u7684\u4e92\u901a\u3002\u8fd9\u79cd\u65b9\u5f0f\u5bf9\u4e8e\u7528\u6237\u6765\u8bf4\u53ef\u4ee5\u51cf\u5c11\u4e00\u5b9a\u7684\u7ef4\u62a4\u80fd\u529b\uff0c\u4f46\u662f\u7a33\u5b9a\u6027\u4e00\u822c\uff0c\u7efc\u5408\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-283\" src=\"http:\/\/www.rchen.top\/wp-content\/uploads\/2022\/05\/20220530-4.png\" alt=\"\" width=\"1306\" height=\"692\" \/><\/p>\n<p><strong>b.\u7b2c\u4e8c\u79cd\u65b9\u5f0f\uff1a\u4e13\u7ebf+IP\u8def\u7531<\/strong><\/p>\n<p>\u5404IDC\u91c7\u7528\u4e13\u7ebf\u6253\u901a\u7f51\u7edc\uff0c\u901a\u8fc7BGP\u534f\u8bae\u5ba3\u544a\u8def\u7531\u3002<\/p>\n<p>BGP \u8def\u7531\u534f\u8bae\u5177\u5907\u5f88\u5f3a\u7684\u8def\u7531\u7b56\u7565\u63a7\u5236\u80fd\u529b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7075\u6d3b\u7684\u4e1a\u52a1\u8def\u7531\u4f18\u5148\u7ea7\u8c03\u6574\u53ca\u8def\u7531\u8fc7\u6ee4\uff0c\u56e0\u6b64\uff0c\u9aa8\u5e72\u7f51\u7edc\u91c7\u7528BGP \u534f\u8bae\u6765\u627f\u8f7d\u4e1a\u52a1\u8def\u7531\uff0cBGP\u4e5f\u662f\u76ee\u524d\u4e3b\u6d41\u7684\u52a8\u6001\u8def\u7531\u6280\u672f\u3002<\/p>\n<p>\u57fa\u4e8eBGP \u7684\u56e2\u4f53\u5c5e\u6027\uff0c\u5bf9\u9aa8\u5e72\u7f51\u7684\u4e1a\u52a1\u8def\u7531\u8fdb\u884c\u6807\u8bc6\u548c\u7b56\u7565\u63a7\u5236\uff0c\u5728\u4e1a\u52a1\u4e2d\u5fc3\u6216\u533a\u57df\u4e2d\u5fc3\u7684\u63a5\u5165\u8def\u7531\u5668\u4e0a\u5bf9\u5404\u7c7b\u4e1a\u52a1\u8def\u7531\u8fdb\u884c\u6807\u8bc6\uff0c\u5e76\u5728\u9aa8\u5e72\u8def\u7531\u5668\u548c\u63a5\u5165\u8def\u7531\u5668\u4e0a\u8bbe\u7f6e\u4e1a\u52a1\u8def\u7531\u8fc7\u6ee4\u7b56\u7565\u548c\u672c\u5730\u4f18\u5148\u7ea7\u7b56\u7565\uff0c\u8d77\u5230\u7cbe\u786e\u63a7\u5236\u4e1a\u52a1\u8def\u7531\u901a\u544a\u548c\u5b66\u4e60\u7684\u76ee\u7684\uff0c\u5b9e\u73b0\u524d\u9762\u6240\u8ff0\u7684\u7f51\u7edc\u89c4\u5212\u539f\u5219\u3002\u5e76\u5728\u6b64\u57fa\u7840\u4e0a\u540c\u65f6\u4fdd\u8bc1\u8def\u7531\u7b56\u7565\u90e8\u7f72\u7684\u76f8\u5bf9\u7a33\u5b9a\u6027\uff0c\u589e\u5f3a\u4e86\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<p>\u56e2\u4f53\u5c5e\u6027\u8bbe\u8ba1\uff0c\u56e2\u4f53\u5c5e\u6027\u662f\u9aa8\u5e72\u7f51\u8def\u7531\u89c4\u5212\u7684\u91cd\u8981\u90e8\u5206\uff0c\u7f51\u7edc\u4e2d\u7684\u8def\u7531\u7b56\u7565\u90fd\u662f\u57fa\u4e8eBGP \u56e2\u4f53\u5c5e\u6027\u6765\u8fdb\u884c\u89c4\u5212\u548c\u90e8\u7f72\u7684\u3002\u56e0\u6b64\uff0c\u56e2\u4f53\u5c5e\u6027\u8bbe\u8ba1\u7684\u597d\u574f\uff0c\u76f4\u63a5\u5173\u7cfb\u5230\u9aa8\u5e72\u7f51\u7edc\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\u3002<\/p>\n<p><a name=\"_Toc468223356\"><\/a><strong>\u9aa8\u5e72\u7f51\u53ef\u9760\u6027\u8bbe\u8ba1<\/strong><\/p>\n<p>\u7f51\u7edc\u7cfb\u7edf\u7684\u7a33\u5b9a\u53ef\u9760\u662f\u5e94\u7528\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u7684\u5173\u952e\u4fdd\u8bc1\uff0c\u5728\u7f51\u7edc\u8bbe\u8ba1\u4e2d\u5e94\u9009\u7528\u5df2\u89c4\u6a21\u5546\u7528\u7684\u9ad8\u53ef\u9760\u6027\u7f51\u7edc\u4ea7\u54c1\uff0c\u5408\u7406\u8bbe\u8ba1\u7f51\u7edc\u67b6\u6784\uff0c\u5236\u8ba2\u53ef\u9760\u7684\u7f51\u7edc\u5907\u4efd\u7b56\u7565\uff0c\u4fdd\u8bc1\u7f51\u7edc\u5177\u6709\u6545\u969c\u81ea\u6108\u7684\u80fd\u529b\uff0c\u6700\u5927\u9650\u5ea6\u5730\u652f\u6301\u7cfb\u7edf\u7684\u6b63\u5e38\u8fd0\u884c\uff0c\u9aa8\u5e72\u7f51\u8def\u7531\u5668\u8bbe\u5907\u672c\u8eab\u5fc5\u987b\u8fbe\u523099.999%\u53ef\u9760\u6027\u8981\u6c42\uff0c\u6ee1\u8db3\u7535\u4fe1\u7ea7\u4e1a\u52a1\u627f\u8f7d\u7684\u53ef\u9760\u6027\u8981\u6c42\uff0850ms ~ 500ms\uff09\uff0c\u89e3\u51b3\u6807\u51c6\u6280\u672f\u5728\u6269\u5c55\u6027\u3001\u53ef\u90e8\u7f72\u6027\u7b49\u65b9\u9762\u7684\u4e0d\u8db3\uff0c\u964d\u4f4e\u8fd0\u8425\u7ef4\u62a4\u6210\u672c\u3001\u4fdd\u969c\u4e1a\u52a1\u8fd0\u8425\u6548\u679c\u3002<\/p>\n<p><a name=\"_Toc468223357\"><\/a><strong>\u6545\u969c\u68c0\u6d4b\u6280\u672f<\/strong><\/p>\n<p>\u4f20\u7edf\u7684\u6545\u969c\u68c0\u6d4b\u6280\u672f\u662f\u901a\u8fc7\u68c0\u6d4b\u8bbe\u5907\u63a5\u53e3\u7684\u72b6\u6001\u6765\u53d1\u73b0\u6545\u969c\uff0c\u8fd9\u79cd\u65b9\u5f0f\u53ea\u80fd\u68c0\u6d4b\u7b80\u5355\u7684\u7269\u7406\u6545\u969c\uff0c\u800c\u5bf9\u4e8e\u66f4\u6df1\u5c42\u7684\u6545\u969c\uff08\u5982\u8f6c\u53d1\u5f15\u64ce\u6545\u969c\u3001\u94fe\u8def\u5355\u901a\u7b49\uff09\u53ea\u80fd\u4f9d\u9760\u4e0a\u5c42\u7684\u8def\u7531\u534f\u8bae\u901a\u8fc7Keep alive\u6216Hello\u62a5\u6587\u6765\u53d1\u73b0\u6545\u969c\u3002\u8fd9\u79cd\u673a\u5236\u4e0d\u4ec5\u68c0\u6d4b\u65f6\u95f4\u6162\u3001\u5f00\u9500\u5927\uff0c\u800c\u4e14\u5b58\u5728\u5e94\u7528\u573a\u666f\u7684\u9650\u5236\uff08\u4e0d\u80fd\u8de8\u534f\u8bae\uff09\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u63d0\u9ad8IP\/MPLS\u5c42\u7684\u6545\u969c\u68c0\u6d4b\u65f6\u95f4\u548c\u6548\u7387\uff0c\u9700\u8981\u4f7f\u7528\u68c0\u6d4b\u901f\u5ea6\u5feb\u3001\u652f\u6301\u5404\u79cd\u534f\u8bae\u7684\u6545\u969c\u68c0\u6d4b\u673a\u5236\u3002\u76ee\u524d\u4e3b\u8981\u91c7\u7528\u7684\u673a\u5236\u662fBFD\u6280\u672f\u3002<\/p>\n<p>BFD\uff08Bi-directional Forwarding Detection\uff09\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ea4\u4e92\u68c0\u6d4b\u534f\u8bae\uff0c\u7528\u4e8e\u5feb\u901f\u68c0\u6d4b\u7cfb\u7edf\u4e4b\u95f4\u7684\u901a\u4fe1\u6545\u969c\uff0c\u5e76\u5728\u51fa\u73b0\u6545\u969c\u65f6\u901a\u77e5\u4e0a\u5c42\u5e94\u7528\u3002<\/p>\n<p><strong>BFD\u5177\u6709\u5982\u4e0b\u7279\u6027\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u5bf9\u76f8\u90bb\u8f6c\u53d1\u5f15\u64ce\u4e4b\u95f4\u7684\u901a\u9053\u63d0\u4f9b\u8f7b\u8d1f\u8377\u3001\u5feb\u901f\u6545\u969c\u68c0\u6d4b\u3002\u8fd9\u4e9b\u6545\u969c\u5305\u62ec\u63a5\u53e3\u6545\u969c\uff0c\u6570\u636e\u94fe\u8def\u6545\u969c\uff0c\u751a\u81f3\u6709\u53ef\u80fd\u662f\u8f6c\u53d1\u5f15\u64ce\u672c\u8eab\u6545\u969c\u3002BFD\u7684\u6545\u969c\u68c0\u6d4b\u65f6\u95f4\u4e00\u822c\u572850ms\u4ee5\u5185\u3002<\/p>\n<p>\u63d0\u4f9b\u4e00\u4e2a\u5355\u4e00\u7684\u673a\u5236\uff0c\u80fd\u591f\u7528\u6765\u5bf9\u4efb\u4f55\u5a92\u4ecb\u3001\u4efb\u4f55\u534f\u8bae\u5c42\u8fdb\u884c\u5b9e\u65f6\u5730\u68c0\u6d4b\u3002\u5b9e\u73b0BFD for Everything\uff0c\u4f8b\u5982IS-IS\/OSPF\u3001BGP\u3001LSP\u3001TE\u7b49\u7b49\u3002<\/p>\n<p>\u5728\u76ee\u524d\u7f51\u7edc\u4e2d\uff0cBFD\u5df2\u7ecf\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u94fe\u8def\u3001\u534f\u8bae\u7684\u6545\u969c\u68c0\u6d4b\u3002<\/p>\n<p><a name=\"_Toc468223358\"><\/a><strong>\u4e1a\u52a1\u4fdd\u62a4\u6280\u672f<\/strong><\/p>\n<p>\u4f20\u7edf\u7684IP\u7f51\u7edc\u4e2d\uff0c\u4ece\u68c0\u6d4b\u51fa\u6545\u969c\uff0c\u5230\u8def\u7531\u7cfb\u7edf\u5b8c\u6210\u8def\u7531\u6536\u655b\uff0c\u4e00\u822c\u9700\u8981\u51e0\u79d2\u949f\u7684\u65f6\u95f4\u3002\u5bf9\u4e8e\u7f51\u7edc\u4e0a\u67d0\u4e9b\u5bf9\u5ef6\u65f6\u3001\u4e22\u5305\u7b49\u975e\u5e38\u654f\u611f\u7684\u4e1a\u52a1\u6765\u8bf4\uff0c\u8fd9\u79cd\u6536\u655b\u901f\u5ea6\u65e0\u6cd5\u5bb9\u5fcd\u3002\u6bd4\u5982VoIP\u4e1a\u52a1\u6240\u80fd\u5bb9\u5fcd\u7684\u7f51\u7edc\u4e2d\u65ad\u65f6\u95f4\u4e3a\u6beb\u79d2\u7ea7\u3002<\/p>\n<p>IP FRR\u7279\u6027\u80fd\u591f\u4fdd\u8bc1\u8f6c\u53d1\u7cfb\u7edf\u5feb\u901f\u5730\u5bf9\u4e8e\u8fd9\u79cd\u6545\u969c\u8fdb\u884c\u68c0\u6d4b\u5e76\u91c7\u53d6\u63aa\u65bd\uff0c\u5c3d\u5feb\u8ba9\u4e1a\u52a1\u6d41\u6062\u590d\u6b63\u5e38\u3002<\/p>\n<p><strong>BGP FRR<\/strong><\/p>\n<p>\u9aa8\u5e72\u7f51\u5efa\u8bbe\u9700\u8981\u91c7\u7528BGP\u534f\u8bae\u7ec4\u7f51\uff0c\u800cIGP \/LDP FRR\u6280\u672f\u5bf9\u94fe\u8def\u6545\u969c\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u505a\u5230\u5feb\u901f\u7684\u8def\u5f84\u5207\u6362\uff0c\u4f46\u662f\u5f53BGP\u8282\u70b9\u53d1\u751f\u6545\u969c\u65f6\uff0c\u9700\u8981BGP\u63a7\u5236\u5c42\u9762\u6536\u655b\uff0c\u7136\u540e\u91cd\u65b0\u4e0b\u8f6c\u53d1\u8868\uff0c\u6536\u655b\u65f6\u95f4\u53ef\u80fd\u8fbe\u5230\u79d2\u7ea7\uff0cBGP \u4e0b\u4e00\u8df3\u5206\u79bb\u6280\u672f\u53ef\u4ee5\u52a0\u5feb\u63a7\u5236\u5c42\u9762\u7684\u6536\u655b\u901f\u5ea6\uff0c\u4f46\u4ecd\u7136\u65e0\u6cd5\u8fbe\u5230\u7535\u4fe1\u7ea7\u7684\u53ef\u9760\u6027\u8981\u6c42\u3002<\/p>\n<p>BGP FRR\u6280\u672f\u91c7\u7528\u8f6c\u53d1\u5c42\u9762\u7684\u76f4\u63a5\u5207\u6362\u7684\u65b9\u5f0f, \u5c06\u6b21\u4f18BGP\u90bb\u5c45\u7684LDP Label\/BGP Label\u76f4\u63a5\u4f5c\u4e3a\u5907\u4efd\u653e\u7f6e\u5230\u8f6c\u53d1\u8868\u4e2d\uff0c\u5f53BFD\u7b49\u5feb\u901f\u68c0\u6d4b\u673a\u5236\u68c0\u6d4b\u5230\u6700\u4f18BGP\u90bb\u5c45\u6545\u969c\u65f6\uff0c\u76f4\u63a5\u5207\u6362\u5230\u5907\u4efd\u7684\u8868\u9879\uff0c\u5b9e\u73b0\u4e1a\u52a1\u7684\u5feb\u901f\u6536\u655b\u3002<\/p>\n<p><a name=\"_Toc468223359\"><\/a><strong>MPLS VPN\u8bbe\u8ba1\u89c4\u5212<\/strong><\/p>\n<p>\u5728\u9aa8\u5e72\u627f\u8f7d\u7f51\u7ec4\u5efa\u5b8c\u540e\uff0c\u53ef\u4ee5\u5212\u5206\u4e0d\u540c\u7684MPLS VPN\uff0c\u7528\u6765\u627f\u8f7d\u4e0d\u540c\u7684\u4e1a\u52a1\uff0c\u5b9e\u73b0\u5bf9\u4e1a\u52a1\u7684\u7cbe\u7ec6\u5316\u7ba1\u7406\uff0c\u5b9e\u73b0\u6570\u636e\u5206\u5b9e\u4f8b\u5206\u4e1a\u52a1\u7684\u4e8c\u5c42\u901a\u4fe1\u3002<\/p>\n<p>\u7f51\u7edc\u53ef\u9884\u89c1\u6027\uff1a\u4e1a\u52a1\u57fa\u4e8e\u4f18\u5148\u7ea7\u5206\u522b\u627f\u8f7d\u4e8e\u4e0d\u540c\u7684VPN\u7f51\uff0c\u56e0\u6b64\u4e1a\u52a1\u6d41\u91cf\u6a21<\/p>\n<p>\u578b\u751a\u81f3\u6d41\u91cf\u8def\u5f84\u6e05\u6670\u56fa\u5b9a\uff0c\u5f88\u5bb9\u6613\u8bc4\u4f30\u51fa\u4e2d\u7684\u4e1a\u52a1\u6d41\u91cf\u7684\u89c4\u6a21\u3001\u6d41\u91cf\u7a81\u53d1\u7684\u60c5\u51b5\u4ee5\u53ca\u4e1a\u52a1\u5bf9\u7f51\u7edc\u7684\u8981\u6c42\uff0c\u4ece\u800c\u66f4\u597d\u7684\u89c4\u5212\u9aa8\u5e72\u7f51\u7edc\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5f53\u7f51\u7edc\u53d1\u751f\u6545\u969c\u65f6\uff0c\u53ef\u4ee5\u6e05\u6670\u7684\u8bc4\u4f30\u51fa\u6545\u969c\u5bf9\u54ea\u4e9b\u7f51\u7edc\u4e1a\u52a1\u53ef\u80fd\u9020\u6210\u5f71\u54cd\uff0c\u5f71\u54cd\u7684\u7a0b\u5ea6\uff0c\u4e14\u4fbf\u4e8e\u7f51\u7edc\u5c42\u9762\u7684\u6545\u969c\u5b9a\u4f4d\uff1b<\/p>\n<p>\u9ad8\u53ef\u7528\u6027\uff1a\u4e24\u4e2a\u76f8\u5bf9\u72ec\u7acb\u7684\u8f6c\u53d1\u5e73\u9762\u548c\u63a7\u5236\u5e73\u9762\uff0c\u5c06\u7f51\u7edc\u6545\u969c\u5bf9\u4e1a\u52a1\u7684\u5f71\u54cd\u6700\u5927\u53ef\u80fd\u7684\u9694\u79bb\u5728\u672c\u5e73\u9762\u5185\u90e8\uff0c\u51cf\u5c0f\u4e86\u9aa8\u5e72\u7f51\u4e2d\u8bbe\u5907\u3001\u94fe\u8def\u6545\u969c\u5bf9\u6574\u4e2a\u9aa8\u5e72\u7f51\u7684\u51b2\u51fb\uff1b<\/p>\n<p>\u53ef\u6269\u5c55\u6027\uff1a\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u4e1a\u52a1\u9700\u6c42\u5212\u5206\u7ec4\u5efa\u4e0d\u540c\u7684VPN\u7f51\uff0c\u56e0\u6b64\uff0c\u5177\u5907\u5f88\u5f3a\u7684\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-284\" src=\"http:\/\/www.rchen.top\/wp-content\/uploads\/2022\/05\/20220530-5.png\" alt=\"\" width=\"383\" height=\"282\" \/><\/p>\n<p>\u4f18\u70b9\uff1a<\/p>\n<p>1\uff09\u901a\u8fc7\u8def\u7531\u7b56\u7565\u5b9e\u73b0\u7cbe\u7ec6\u5316\u7684\u8def\u7531\u7ba1\u7406\uff0c\u63d0\u5347\u7f51\u7edc\u5b89\u5168\u6027\uff1b<\/p>\n<p>2\uff09\u901a\u8fc7BGP\u5b9e\u73b0\u94fe\u8def\u7684\u9ad8\u53ef\u7528\uff0c\u63d0\u5347\u7f51\u7edc\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u7f3a\u70b9\uff1a<\/p>\n<p>1\uff09\u5bf9\u7f51\u7edc\u6280\u672f\u80fd\u529b\u8981\u6c42\u9ad8\uff1b<\/p>\n<p>2\uff09\u7f51\u7edc\u590d\u6742\u540e\u4e00\u65e6\u51fa\u73b0\u6545\u969c\u6392\u67e5\u96be\u5ea6\u8f83\u5927\uff1b<\/p>\n<p><strong>c.\u7b2c\u4e09\u79cd\u65b9\u5f0f\uff1aIPsec VPN<\/strong><\/p>\n<p>\u4ee5\u4e0a\u4e24\u79cd\u65b9\u6cd5\u90fd\u662f\u901a\u8fc7\u67b6\u8bbe\u4e13\u7ebf\u65b9\u5f0f\u6253\u901a\u4f01\u4e1a\u603b\u90e8\u4e0e\u5206\u652f\u673a\u6784\u7684\u901a\u4fe1\u3002<\/p>\n<p><strong>IPsec VPN<\/strong>\u662f\u7ed9\u516c\u53f8\u7684\u603b\u90e8\u548c\u5206\u652f\u4e4b\u95f4\u8de8\u5e7f\u57df\u7f51\u5b9e\u73b0\u900f\u4f20\u7684\u4e00\u4e2a\u96a7\u9053\u6280\u672f\uff0c\u7406\u8bba\u4e0a\u8fd9\u79cd\u6280\u672f\u662f\u514d\u8d39\u7684\uff08\u53ea\u9700\u8981\u5177\u5907\u516c\u7f51\u5e26\u5bbd\u53ca\u80fd\u591f\u914d\u7f6eVPN\u7684\u8bbe\u5907\uff09\uff0c\u53ef\u4ee5\u4e3a\u4f01\u4e1a\u8282\u7701\u4e00\u7b14\u4e0d\u5c0f\u7684\u5f00\u652f\uff0c\u7f3a\u70b9\u5c31\u662f\u5b9e\u6548\u6027\u65e0\u6cd5\u4fdd\u969c\u3002<\/p>\n<h3><a name=\"_Toc95815036\"><\/a>1.1.4. \u95ee\u9898\u6392\u67e5\u4e0e\u8bca\u65ad<\/h3>\n<p>\u7f51\u7edc\u95ee\u9898\uff0c\u5bf9\u4e8e\u65e5\u5e38\u5e94\u7528\u8bbf\u95ee\u901f\u5ea6\u3001\u6027\u80fd\u7b49\u5173\u7cfb\u751a\u5927\uff0c\u57fa\u672c\u4e0a\u5bf9\u4e8e\u7f51\u7edc\u5de5\u7a0b\u5e08\u3001\u8fd0\u7ef4\u53ca\u6280\u672f\u5f00\u53d1\uff0c\u90fd\u662f\u65e5\u5e38\u89c1\u9762\u4f46\u53c8\u9887\u5177\u6311\u6218\u7684\u5de5\u4f5c\uff0c\u4e5f\u51e0\u4e4e\u662f\u5927\u5bb6\u7684\u57fa\u672c\u80fd\u529b\u3002\u5c24\u5176\u662f\u5bf9\u670d\u52a1\u7aef\u5de5\u7a0b\u5e08\u6765\u8bf4\uff0c\u4e00\u4e2a\u529f\u80fd\u4e0a\u7ebf\u540e\u51fa\u4e86\u95ee\u9898\uff0c\u80fd\u5feb\u901f\u5b9a\u4f4d\u3001\u6392\u67e5\u3001\u89e3\u51b3\u5341\u5206\u5fc5\u8981\uff0c\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u7ecf\u5e38\u9762\u8bd5\u65f6\u4f1a\u8003 HTTP\u3001TCP\u534f\u8bae\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u4f60\u603b\u8981\u5f04\u6e05\u695a\u7f51\u7edc\u4f20\u8f93\u7684\u5e95\u5c42\u903b\u8f91\u3002<\/p>\n<p>\u7a0b\u5e8f\u672c\u8eab\u8fd8\u597d\u6392\u67e5\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u7a0b\u5e8f\u5728\u81ea\u5df1\u670d\u52a1\u5668\uff0c\u53ea\u8981\u5b9a\u4f4d\u5230\u4ee3\u7801\u4e0a\uff0c\u82b1\u65f6\u95f4\u603b\u6709\u5e0c\u671b\u641e\u5b9a\u3002<\/p>\n<p>\u7f51\u7edc\u7684\u96be\u5ea6\uff0c\u4e00\u65b9\u9762\u662f\u9886\u57df\u4e0d\u540c\uff0c\u5f00\u53d1\u5de5\u7a0b\u5e08\u505a\u5f00\u53d1\u5df2\u7ecf\u5f88\u7d2f\uff0c\u52a0\u4e0a\u6ca1\u6709\u8001\u53f8\u673a\u5e26\uff0c\u901a\u5e38\u5bf9\u7f51\u7edc\u6392\u67e5\u77e5\u4e4b\u751a\u5c11\u3002\u4e00\u65b9\u9762\u7f51\u7edc\u662f\u53cc\u65b9\u7684\u4e8b\uff0c\u4e5f\u5c31\u662f\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\uff0c\u8fd8\u5305\u62ec\u4e2d\u95f4\u8def\u5f84\u4e0a\u7684\u8bbe\u5907\u7b49\uff0c\u201c\u53d8\u91cf\u201d\u66f4\u591a\u3002\u5f53\u7136\u4e5f\u6709\u4e00\u6ce2\u4f18\u79c0\u7684SRE\uff08Server Restart Engineer\uff09\uff0c\u9047\u5230\u95ee\u9898\u5148\u4e0a\u91cd\u542f\u5927\u6cd5\uff0c\u4e5f\u8bb8\u4e5f\u80fd\u641e\u5b9a\u4e0d\u5c11\u95ee\u9898\u3002\u4f46\u662f\uff0c\u6839\u56e0\u4f9d\u7136\u662f\u672a\u77e5\uff0c\u5373\u4f7f\u95ee\u9898\u6682\u65f6\u6d88\u5931\u4e86\uff0c\u4e0d\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\uff0c\u5b83\u53c8\u4f1a\u518d\u6b21\u5230\u6765\uff0c\u7136\u540e\u518d\u6b21\u91cd\u542f\uff0c\u6240\u4ee5\u80fd\u5426\u5feb\u901f\u89e3\u51b3\u7f51\u7edc\u95ee\u9898\u5c06\u635f\u5931\u964d\u5230\u6700\u5c0f\uff0c\u5c31\u4f53\u73b0\u771f\u6b63\u7684\u6280\u672f\u5b9e\u529b\u4e86\u3002<\/p>\n<p><strong>\u7f51\u7edc\u95ee\u9898\u6392\u67e5\u601d\u8def\u603b\u7ed3<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u786e\u8ba4\u6545\u969c\u73b0\u8c61\uff1a<\/strong>\u5148\u786e\u5b9a\u6e05\u695a\u6545\u969c\u73b0\u8c61\uff0c\u522b\u4e0a\u6765\u542c\u5230\u53cd\u9988\u8bf4\u7f51\u65ad\u4e86\u5c31\u662f\u7f51\u7edc\u6545\u969c\uff0c\u8fd9\u662f\u975e\u4e13\u4e1a\u9886\u57df\u4eba\u7684\u5224\u65ad\uff0c\u4f60\u9700\u8981\u6839\u636e\u7528\u6237\u7684\u53cd\u9988\u7ed3\u5408\u65e5\u5fd7\u76d1\u63a7\uff0c\u76d1\u63a7\u544a\u8b66\u7b49\u624b\u6bb5\u786e\u5b9a\u6545\u969c\u73b0\u8c61\u3002\u6162\u5361\u65ad\uff1f\u57df\u540d\u89e3\u6790\u9519\u8bef\uff1f\u5e94\u7528\u7a0b\u5e8f\u65e0\u6cd5\u8bbf\u95ee\uff1f<\/li>\n<li>\u786e\u5b9a\u6545\u969c\u57df\uff1a\u65e0\u7ebf\u8fd8\u662f\u6709\u7ebf\uff1f\u5185\u7f51\u8fd8\u662f\u5916\u7f51\uff1f\u4e2a\u522b\u95ee\u9898\u8fd8\u662f\u5168\u5c40\u6545\u969c\uff1f<\/li>\n<li>\u7f29\u5c0f\u95ee\u9898\u8303\u56f4\uff1a\u6392\u67e5\u5e94\u7528\u7a0b\u5e8f\u81ea\u8eab\u662f\u5426\u95ee\u9898\uff0c\u4f8b\u5982\u5185\u90e8\u8bbf\u95ee\uff0c\u670d\u52a1\u5668\u8bbf\u95ee\uff0c\u9010\u6b65\u7f29\u5c0f\u6545\u969c\u57df\u3002<\/li>\n<li>\u786e\u8ba4\u53d8\u66f4\u60c5\u51b5\uff1a\u786e\u8ba4\u662f\u5426\u6709\u5f02\u5e38\u7684\u64cd\u4f5c\uff0c\u6392\u9664\u4eba\u4e3a\u64cd\u4f5c\u5f15\u8d77\uff1b<\/li>\n<li>\u786e\u8ba4\u76d1\u63a7\u4fe1\u606f\uff1a\u67e5\u770b\u7f51\u7edc\u76d1\u63a7\u8bbe\u5907\uff0c\u662f\u5426\u6709\u5f02\u5e38\u544a\u8b66\uff1b<\/li>\n<li>\u786e\u8ba4\u65e5\u5fd7\u4fe1\u606f\uff1a\u67e5\u770b\u7f51\u7edc\u65e5\u5fd7\uff0c\u662f\u5426\u6709\u5f02\u5e38\u65e5\u5fd7\uff1b<\/li>\n<\/ul>\n<p><strong>\u4e0b\u9762\u4ecb\u7ecd\u51e0\u4e2a\u7f51\u7edc\u5de5\u7a0b\u5e08\u5e38\u7528\u7684\u7f51\u7edc\u8bca\u65ad\u5de5\u5177\uff1a<\/strong><\/p>\n<p><strong>tcpping <\/strong>\u7528\u4e8e\u6d4b\u8bd5\u7f51\u7edc\u7aef\u53e3<\/p>\n<p>\u6d4b\u91cf\u5230\u8fdc\u7a0b\u4e3b\u673a\u7684\u7f51\u7edc\u5ef6\u8fdf\u7684\u4e00\u79cd\u5e38\u7528\u65b9\u6cd5\u662f\u4f7f\u7528ping\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5ping\u5de5\u5177\u4f9d\u8d56 ICMP ECHO\u8bf7\u6c42\u548c\u56de\u590d\u6570\u636e\u5305\u6765\u6d4b\u91cf\u8fdc\u7a0b\u4e3b\u673a\u7684\u5f80\u8fd4\u5ef6\u8fdf\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cICMP \u6d41\u91cf\u53ef\u80fd\u4f1a\u88ab\u9632\u706b\u5899\u963b\u6b62\uff0c\u8fd9\u4f7f\u5f97\u8be5ping\u5e94\u7528\u7a0b\u5e8f\u5bf9\u4e8e\u53d7\u9650\u5236\u7684\u9632\u706b\u5899\u540e\u9762\u7684\u4e3b\u673a\u6beb\u65e0\u7528\u5904\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u5c06\u9700\u8981\u4f9d\u8d56\u4f7f\u7528 TCP\/UDP \u6570\u636e\u5305\u7684\u7b2c 3 \u5c42\u6d4b\u91cf\u5de5\u5177\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u7b2c 3 \u5c42\u6570\u636e\u5305\u66f4\u6709\u53ef\u80fd\u7ed5\u8fc7\u5e38\u89c1\u7684\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n<p><strong>windows<\/strong><strong>\u4e0b\u5b89\u88c5tcping\u63d2\u4ef6<\/strong><\/p>\n<p>\u94fe\u63a5\uff1a<a href=\"https:\/\/pan.baidu.com\/s\/1gYAKBLIB1k9AzIhNnKVaCw\">https:\/\/pan.baidu.com\/s\/1gYAKBLIB1k9AzIhNnKVaCw<\/a><\/p>\n<p>\u63d0\u53d6\u7801\uff1a9bsl<\/p>\n<p><strong>linux<\/strong><strong>\u4e0b\u5b89\u88c5<\/strong><\/p>\n<p>wget <a href=\"http:\/\/www.vdberg.org\/~richard\/tcpping\">http:\/\/www.vdberg.org\/~richard\/tcpping<\/a><\/p>\n<p>cp tcpping \/usr\/bin\/<\/p>\n<p>chmod +x \/usr\/bin\/tcpping<\/p>\n<p>yum install bc -y<\/p>\n<p>yum install tcptraceroute -y<\/p>\n<p>tcpping 10.0.102.23 80<\/p>\n<p><strong>tracert<\/strong><strong>\u7528\u4e8e\u7f51\u7edc\u8def\u7531\u8ffd\u8e2a<\/strong><\/p>\n<p>\u53ef\u4ee5\u63a2\u6d4b\u7f51\u7edc\u7684\u8def\u7531\u53ef\u8fbe\uff0c\u4fbf\u4e8e\u7f51\u7edc\u8bca\u65ad\uff0c\u4e00\u822c\u5efa\u8bae\u5728\u5185\u7f51\u7684\u8bbe\u5907\u4e0a\u5f00\u542f\u8bbe\u5907\u56de\u663e\u529f\u80fd\uff08\u9ed8\u8ba4\u5173\u95ed\uff09\uff1b<\/p>\n<p>\u4ee5H3C\u8bbe\u5907\u4e3a\u4f8b\uff0c\u5f00\u542fttl-expires\uff0cunreachables\uff1a<\/p>\n<p>ip ttl-expires enable<\/p>\n<p>ip unreachables enable<\/p>\n<p>\u8fd9\u91cc\u63a8\u8350\u4e00\u4e2a\u5c0f\u5de5\u5177\uff0c\u53eb<strong>BestTrace<\/strong>,\u53ef\u5c55\u793a\u53ef\u89c6\u5316\u8def\u7531\uff0c\u5e76\u8bc6\u522b\u8fd0\u8425\u5546IP\u4f4d\u7f6e\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-286\" src=\"http:\/\/www.rchen.top\/wp-content\/uploads\/2022\/05\/20220530-7.png\" alt=\"\" width=\"960\" height=\"825\" \/><\/p>\n<p><strong>wireshark<\/strong>\u662f\u975e\u5e38\u6d41\u884c\u7684\u7f51\u7edc\u5c01\u5305\u5206\u6790\u8f6f\u4ef6\uff0c\u529f\u80fd\u5341\u5206\u5f3a\u5927\u3002\u53ef\u4ee5\u622a\u53d6\u5404\u79cd\u7f51\u7edc\u5c01\u5305\uff0c\u663e\u793a\u7f51\u7edc\u5c01\u5305\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<p>wireshark\u662f\u5f00\u6e90\u8f6f\u4ef6\uff0c\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\uff0c\u5b98\u65b9\u4e0b\u8f7d\u7f51\u7ad9\uff1a <a href=\"http:\/\/www.wireshark.org\/\">http:\/\/www.wireshark.org\/<\/a><\/p>\n<p>\u53ef\u4ee5\u8fd0\u884c\u5728Windows\u548cMac OS\u4e0a\uff0c\u4f7f\u7528wireshark\u7684\u4eba\u5fc5\u987b\u4e86\u89e3\u7f51\u7edc\u534f\u8bae\uff0c\u5426\u5219\u5c31\u770b\u4e0d\u61c2wireshark\u4e86\u3002<\/p>\n<p><strong>tcpdump <\/strong>\u662flinux\u4e0b\u7684\u7f51\u7edc\u5206\u6790\u5de5\u5177\u3002<\/p>\n<p>\u5b89\u88c5tcpdump:<\/p>\n<p>yum install tcpdump -y<\/p>\n<p>\u4f8b\u5b50\uff1a\u4ee5\u4e0b\u662ftcpdump\u7684\u5176\u4ed6\u4e00\u4e9b\u793a\u4f8b<\/p>\n<p>1\u3001\u6293\u53d6\u5305\u542b10.10.10.122\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn host 10.10.10.122<\/p>\n<p>2\u3001\u6293\u53d6\u5305\u542b10.10.10.0\/24\u7f51\u6bb5\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn net 10.10.10.0\/24<\/p>\n<p>3\u3001\u6293\u53d6\u5305\u542b\u7aef\u53e322\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn port 22<\/p>\n<p>4\u3001\u6293\u53d6udp\u534f\u8bae\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn\u00a0 udp<\/p>\n<p>5\u3001\u6293\u53d6icmp\u534f\u8bae\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn icmp<\/p>\n<p>6\u3001\u6293\u53d6arp\u534f\u8bae\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn arp<\/p>\n<p>7\u3001\u6293\u53d6ip\u534f\u8bae\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn ip<\/p>\n<p>8\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.122\u6570\u636e\u5305\u3002<\/p>\n<p>tcpdump -i eth0 -vnn src host 10.10.10.122<\/p>\n<p>9\u3001\u6293\u53d6\u76ee\u7684ip\u662f10.10.10.122\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn dst host 10.10.10.122<\/p>\n<p>10\u3001\u6293\u53d6\u6e90\u7aef\u53e3\u662f22\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn src port 22<\/p>\n<p>11\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.253\u4e14\u76ee\u7684ip\u662f22\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn src host 10.10.10.253 and dst port 22<\/p>\n<p>12\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.122\u6216\u8005\u5305\u542b\u7aef\u53e3\u662f22\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn src host 10.10.10.122 or port 22<\/p>\n<p>13\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.122\u4e14\u7aef\u53e3\u4e0d\u662f22\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump -i eth0 -vnn src host 10.10.10.122 and not port 22<\/p>\n<p>14\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.2\u4e14\u76ee\u7684\u7aef\u53e3\u662f22\uff0c\u6216\u6e90ip\u662f10.10.10.65\u4e14\u76ee\u7684\u7aef\u53e3\u662f80\u7684\u6570\u636e\u5305\u3002<\/p>\n<p>tcpdump -i eth0 -vnn \\( src host 10.10.10.2 and dst port 22 \\) or\u00a0\u00a0 \\( src host 10.10.10.65 and dst port 80 \\)<\/p>\n<p>15\u3001\u6293\u53d6\u6e90ip\u662f10.10.10.59\u4e14\u76ee\u7684\u7aef\u53e3\u662f22\uff0c\u6216\u6e90ip\u662f10.10.10.68\u4e14\u76ee\u7684\u7aef\u53e3\u662f80\u7684\u6570\u636e\u5305\u3002<\/p>\n<p>tcpdump -i\u00a0 eth0 -vnn &#8216;src host 10.10.10.59 and dst port 22&#8217; or\u00a0 &#8216; src host 10.10.10.68 and dst port 80 &#8216;<\/p>\n<p>16\u3001\u628a\u6293\u53d6\u7684\u6570\u636e\u5305\u8bb0\u5f55\u5b58\u5230\/tmp\/fill\u6587\u4ef6\u4e2d\uff0c\u5f53\u6293\u53d6100\u4e2a\u6570\u636e\u5305\u540e\u5c31\u9000\u51fa\u7a0b\u5e8f\u3002<\/p>\n<p>tcpdump \u2013i eth0 -vnn -w\u00a0 \/tmp\/fil1 -c 100<\/p>\n<p>17\u3001\u4ece\/tmp\/fill\u8bb0\u5f55\u4e2d\u8bfb\u53d6tcp\u534f\u8bae\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump \u2013i eth0 -vnn -r\u00a0 \/tmp\/fil1 tcp<\/p>\n<p>18\u3001\u4ece\/tmp\/fill\u8bb0\u5f55\u4e2d\u8bfb\u53d6\u5305\u542b10.10.10.58\u7684\u6570\u636e\u5305<\/p>\n<p>tcpdump \u2013i eth0 -vnn -r\u00a0 \/tmp\/fil1 host\u00a0 10.10.10.58<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.1.\u00a0 \u7f51\u7edc \u7f51\u7edc\u662f\u8fd0\u7ef4\u5de5\u4f5c\u4e2d\u7684\u57fa\u7840\u5de5\u4f5c\uff0c\u53ef\u4ee5\u8fd9\u4e48\u8bf4\u3002IT\u57fa\u7840\u67b6\u6784\u662f\u4f01\u4e1a\u4fe1\u606f\u7cfb\u7edf\u7684\u57fa\u77f3\uff0c\u800c\u7f51\u7edc\u5219\u662fIT\u57fa\u7840 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[73],"tags":[67],"class_list":["post-279","post","type-post","status-publish","format-standard","hentry","category-itit-infra","tag-67"],"_links":{"self":[{"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/posts\/279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rchen.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=279"}],"version-history":[{"count":5,"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/posts\/279\/revisions"}],"predecessor-version":[{"id":350,"href":"https:\/\/www.rchen.top\/index.php?rest_route=\/wp\/v2\/posts\/279\/revisions\/350"}],"wp:attachment":[{"href":"https:\/\/www.rchen.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rchen.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rchen.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}