{"id":2117,"date":"2017-04-24T07:54:44","date_gmt":"2017-04-23T23:54:44","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2117"},"modified":"2017-04-24T07:54:44","modified_gmt":"2017-04-23T23:54:44","slug":"ping%e5%91%bd%e4%bb%a4%e5%92%8cicmp%e5%8d%8f%e8%ae%ae%e7%9a%84%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/asp\/ping%e5%91%bd%e4%bb%a4%e5%92%8cicmp%e5%8d%8f%e8%ae%ae%e7%9a%84%e5%85%b3%e7%b3%bb\/","title":{"rendered":"ping\u547d\u4ee4\u548cICMP\u534f\u8bae\u7684\u5173\u7cfb"},"content":{"rendered":"

<\/h4>\n
\n
\n
\n
\u00a0\u00a0\u00a0 \u5176\u5b9e\u5bf9\u4e8eping\u8fd9\u4e2a\u547d\u4ee4\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u4f7f\u7528\u5230\uff0c\u6211\u4eec\u5e38\u5e38\u7528\u5b83\u6765\u68c0\u6d4b\u5230\u76ee\u7684\u670d\u52a1\u5668\u7684\u662f\u4e0d\u662f\u8054\u901a\u7684\uff0c\u8fd8\u6709\u67e5\u770b\u57df\u540d\u7684\u89e3\u6790\uff0c\u7528\u5904\u8fd8\u662f\u5f88\u591a\u7684\uff0c\u4f46\u662f\u539f\u7406\u6211\u4eec\u53ef\u80fd\u4e0d\u662f\u5f88\u719f\u6089\uff0c\u4e0b\u9762\u662f\u5173\u4e8e\u539f\u7406\u7684\u548c\u62a5\u6587\u683c\u5f0f\u7684\u4ecb\u7ecd\uff0c\u53ef\u4ee5\u52a0\u6df1\u6211\u4eec\u5bf9\u8fd9\u4e2a\u547d\u4ee4\u7684\u7406\u89e3\u3002<\/div>\n
<\/div>\n
\u00a0\u00a0\u00a0 ICMP\u534f\u8bae\u901a\u8fc7IP\u534f\u8bae\u53d1\u9001\u7684\uff0cIP\u534f\u8bae\u662f\u4e00\u79cd\u65e0\u8fde\u63a5\u7684\uff0c\u4e0d\u53ef\u9760\u7684\u6570\u636e\u5305\u534f\u8bae\u3002\u5728Unix\/Linux\uff0c\u5e8f\u5217\u53f7\u4ece0\u5f00\u59cb\u8ba1\u6570\uff0c\u4f9d\u6b21\u9012\u589e\u3002\u800cWindows\u3000ping\u7a0b\u5e8f\u7684ICMP\u5e8f\u5217\u53f7\u662f\u6ca1\u6709\u89c4\u5f8b\u3002<\/div>\n
\u00a0\u00a0\u00a0 ICMP\u534f\u8bae\u5728\u5b9e\u9645\u4f20\u8f93\u4e2d\u6570\u636e\u5305\uff1a20\u5b57\u8282IP\u9996\u90e8 + 8\u5b57\u8282ICMP\u9996\u90e8+ 1472\u5b57\u8282<\u6570\u636e\u5927\u5c0f>38\u5b57\u8282<\/div>\n
\u00a0 \u00a0 ICMP\u62a5\u6587\u683c\u5f0f:IP\u9996\u90e8(20\u5b57\u8282)+8\u4f4d\u7c7b\u578b+8\u4f4d\u4ee3\u7801+16\u4f4d\u6821\u9a8c\u548c+(\u4e0d\u540c\u7684\u7c7b\u578b\u548c\u4ee3\u7801\uff0c\u683c\u5f0f\u4e5f\u6709\u6240\u4e0d\u540c)<\/div>\n
<\/div>\n
Ping\u5de5\u4f5c\u8fc7\u7a0b\u2014\u2014
\n\u5047\u5b9a\u4e3b\u673aA\u7684IP\u5730\u5740\u662f192.168.1.1\uff0c\u4e3b\u673aB\u7684IP\u5730\u5740\u662f192.168.1.2\uff0c\u90fd\u5728\u540c\u4e00\u5b50\u7f51\u5185\uff0c\u5219\u5f53\u4f60\u5728\u4e3b\u673aA\u4e0a\u8fd0\u884c\u201cPing\u00a0192.168.1.2\u201d\u540e\uff0c\u90fd\u53d1\u751f\u4e86\u4e9b\u4ec0\u4e48\u5462?
\n\u9996\u5148\uff0cPing\u547d\u4ee4\u4f1a\u6784\u5efa\u4e00\u4e2a\u56fa\u5b9a\u683c\u5f0f\u7684ICMP\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u7136\u540e\u7531ICMP\u534f\u8bae\u5c06\u8fd9\u4e2a\u6570\u636e\u5305\u8fde\u540c\u5730\u5740\u201c192.168.1.2\u201d\u4e00\u8d77\u4ea4\u7ed9IP\u5c42\u534f\u8bae\uff08\u548cICMP\u4e00\u6837\uff0c\u5b9e\u9645\u4e0a\u662f\u4e00\u7ec4\u540e\u53f0\u8fd0\u884c\u7684\u8fdb\u7a0b\uff09\uff0cIP\u5c42\u534f\u8bae\u5c06\u4ee5\u5730\u5740\u201c192.168.1.2\u201d\u4f5c\u4e3a\u76ee\u7684\u5730\u5740\uff0c\u672c\u673aIP\u5730\u5740\u4f5c\u4e3a\u6e90\u5730\u5740\uff0c\u52a0\u4e0a\u4e00\u4e9b\u5176\u4ed6\u7684\u63a7\u5236\u4fe1\u606f\uff0c\u6784\u5efa\u4e00\u4e2aIP\u6570\u636e\u5305\uff0c\u5e76\u5728\u4e00\u4e2a\u6620\u5c04\u8868\u4e2d\u67e5\u627e\u51faIP\u5730\u5740192.168.1.2\u6240\u5bf9\u5e94\u7684\u7269\u7406\u5730\u5740\uff08\u4e5f\u53ebMAC\u5730\u5740\uff0c\u719f\u6089\u7f51\u5361\u914d\u7f6e\u7684\u670b\u53cb\u4e0d\u4f1a\u964c\u751f\uff0c\u8fd9\u662f\u6570\u636e\u94fe\u8def\u5c42\u534f\u8bae\u6784\u5efa\u6570\u636e\u94fe\u8def\u5c42\u7684\u4f20\u8f93\u5355\u5143\u2014\u2014\u5e27\u6240\u5fc5\u9700\u7684\uff09\uff0c\u4e00\u5e76\u4ea4\u7ed9\u6570\u636e\u94fe\u8def\u5c42\u3002\u540e\u8005\u6784\u5efa\u4e00\u4e2a\u6570\u636e\u5e27\uff0c\u76ee\u7684\u5730\u5740\u662fIP\u5c42\u4f20\u8fc7\u6765\u7684\u7269\u7406\u5730\u5740\uff0c\u6e90\u5730\u5740\u5219\u662f\u672c\u673a\u7684\u7269\u7406\u5730\u5740\uff0c\u8fd8\u8981\u9644\u52a0\u4e0a\u4e00\u4e9b\u63a7\u5236\u4fe1\u606f\uff0c\u4f9d\u636e\u4ee5\u592a\u7f51\u7684\u4ecb\u8d28\u8bbf\u95ee\u89c4\u5219\uff0c\u5c06\u5b83\u4eec\u4f20\u9001\u51fa\u53bb\u3002<\/div>\n
\u00a0 \u00a0 \u5176\u4e2d\u6620\u5c04\u8868\u7531ARP\u5b9e\u73b0\u3002ARP(Address Resolution Protocol)\u662f\u5730\u5740\u89e3\u6790\u534f\u8bae,\u662f\u4e00\u79cd\u5c06IP\u5730\u5740\u8f6c\u5316\u6210\u7269\u7406\u5730\u5740\u7684\u534f\u8bae\u3002ARP\u5177\u4f53\u8bf4\u6765\u5c31\u662f\u5c06\u7f51\u7edc\u5c42\uff08IP\u5c42\uff0c\u4e5f\u5c31\u662f\u76f8\u5f53\u4e8eOSI\u7684\u7b2c\u4e09\u5c42\uff09\u5730\u5740\u89e3\u6790\u4e3a\u6570\u636e\u8fde\u63a5\u5c42\uff08MAC\u5c42\uff0c\u4e5f\u5c31\u662f\u76f8\u5f53\u4e8eOSI\u7684\u7b2c\u4e8c\u5c42\uff09\u7684MAC\u5730\u5740\u3002<\/p>\n

\u4e3b\u673aB\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u540e\uff0c\u5148\u68c0\u67e5\u5b83\u7684\u76ee\u7684\u5730\u5740\uff0c\u5e76\u548c\u672c\u673a\u7684\u7269\u7406\u5730\u5740\u5bf9\u6bd4\uff0c\u5982\u7b26\u5408\uff0c\u5219\u63a5\u6536\uff1b\u5426\u5219\u4e22\u5f03\u3002\u63a5\u6536\u540e\u68c0\u67e5\u8be5\u6570\u636e\u5e27\uff0c\u5c06IP\u6570\u636e\u5305\u4ece\u5e27\u4e2d\u63d0\u53d6\u51fa\u6765\uff0c\u4ea4\u7ed9\u672c\u673a\u7684IP\u5c42\u534f\u8bae\u3002\u540c\u6837\uff0cIP\u5c42\u68c0\u67e5\u540e\uff0c\u5c06\u6709\u7528\u7684\u4fe1\u606f\u63d0\u53d6\u540e\u4ea4\u7ed9ICMP\u534f\u8bae\uff0c\u540e\u8005\u5904\u7406\u540e\uff0c\u9a6c\u4e0a\u6784\u5efa\u4e00\u4e2aICMP\u5e94\u7b54\u5305\uff0c\u53d1\u9001\u7ed9\u4e3b\u673aA\uff0c\u5176\u8fc7\u7a0b\u548c\u4e3b\u673aA\u53d1\u9001ICMP\u8bf7\u6c42\u5305\u5230\u4e3b\u673aB\u4e00\u6a21\u4e00\u6837\u3002<\/p><\/div>\n

\u5373\u5148\u7531IP\u5730\u5740\uff0c\u5728\u7f51\u7edc\u5c42\u4f20\u8f93\uff0c\u7136\u540e\u518d\u6839\u636emac\u5730\u5740\u7531\u6570\u636e\u94fe\u8def\u5c42\u4f20\u9001\u5230\u76ee\u7684\u4e3b\u673a<\/div>\n
<\/div>\n
ICMP\u2014\u2014<\/div>\n
\n

1.IMCP\u534f\u8bae\u4ecb\u7ecd<\/h3>\n

\u524d\u9762\u8bb2\u5230\u4e86\uff0cIP\u534f\u8bae\u5e76\u4e0d\u662f\u4e00\u4e2a\u53ef\u9760\u7684\u534f\u8bae\uff0c\u5b83\u4e0d\u4fdd\u8bc1\u6570\u636e\u88ab\u9001\u8fbe\uff0c\u90a3\u4e48\uff0c\u81ea\u7136\u7684\uff0c\u4fdd\u8bc1\u6570\u636e\u9001\u8fbe\u7684\u5de5\u4f5c\u5e94\u8be5\u7531\u5176\u4ed6\u7684\u6a21\u5757\u6765\u5b8c\u6210\u3002\u5176\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u6a21\u5757\u5c31\u662fICMP(\u7f51\u7edc\u63a7\u5236\u62a5\u6587)\u534f\u8bae\u3002<\/p>\n

\u5f53\u4f20\u9001IP\u6570\u636e\u5305\u53d1\u751f\u9519\u8bef\uff0d\uff0d\u6bd4\u5982\u4e3b\u673a\u4e0d\u53ef\u8fbe\uff0c\u8def\u7531\u4e0d\u53ef\u8fbe\u7b49\u7b49\uff0cICMP\u534f\u8bae\u5c06\u4f1a\u628a\u9519\u8bef\u4fe1\u606f\u5c01\u5305\uff0c\u7136\u540e\u4f20\u9001\u56de\u7ed9\u4e3b\u673a\u3002\u7ed9\u4e3b\u673a\u4e00\u4e2a\u5904\u7406\u9519\u8bef\u7684\u673a\u4f1a\uff0c\u8fd9 \u4e5f\u5c31\u662f\u4e3a\u4ec0\u4e48\u8bf4\u5efa\u7acb\u5728IP\u5c42\u4ee5\u4e0a\u7684\u534f\u8bae\u662f\u53ef\u80fd\u505a\u5230\u5b89\u5168\u7684\u539f\u56e0\u3002ICMP\u6570\u636e\u5305\u75318bit\u7684\u9519\u8bef\u7c7b\u578b\u548c8bit\u7684\u4ee3\u7801\u548c16bit\u7684\u6821\u9a8c\u548c\u7ec4\u6210\u3002\u800c\u524d 16bit\u5c31\u7ec4\u6210\u4e86ICMP\u6240\u8981\u4f20\u9012\u7684\u4fe1\u606f\u3002<\/p>\n

\u5c3d\u7ba1\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u9519\u8bef\u7684\u5305\u4f20\u9001\u5e94\u8be5\u7ed9\u51faICMP\u62a5\u6587\uff0c\u4f46\u662f\u5728\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u662f\u4e0d\u4ea7\u751fICMP\u9519\u8bef\u62a5\u6587\u7684\u3002\u5982\u4e0b<\/p>\n

    \n
  1. ICMP\u5dee\u9519\u62a5\u6587\u4e0d\u4f1a\u4ea7\u751fICMP\u5dee\u9519\u62a5\u6587\uff08\u51faIMCP\u67e5\u8be2\u62a5\u6587\uff09\uff08\u9632\u6b62IMCP\u7684\u65e0\u9650\u4ea7\u751f\u548c\u4f20\u9001\uff09<\/li>\n
  2. \u76ee\u7684\u5730\u5740\u662f\u5e7f\u64ad\u5730\u5740\u6216\u591a\u64ad\u5730\u5740\u7684IP\u6570\u636e\u62a5\u3002<\/li>\n
  3. \u4f5c\u4e3a\u94fe\u8def\u5c42\u5e7f\u64ad\u7684\u6570\u636e\u62a5\u3002<\/li>\n
  4. \u4e0d\u662fIP\u5206\u7247\u7684\u7b2c\u4e00\u7247\u3002<\/li>\n
  5. \u6e90\u5730\u5740\u4e0d\u662f\u5355\u4e2a\u4e3b\u673a\u7684\u6570\u636e\u62a5\u3002\u8fd9\u5c31\u662f\u8bf4\uff0c\u6e90\u5730\u5740\u4e0d\u80fd\u4e3a\u96f6\u5730\u5740\u3001\u73af\u56de\u5730\u5740\u3001\u5e7f\u64ad\u5730 \u5740\u6216\u591a\u64ad\u5730\u5740\u3002<\/li>\n<\/ol>\n

    \u867d\u7136\u91cc\u9762\u7684\u4e00\u4e9b\u89c4\u5b9a\u73b0\u5728\u8fd8\u4e0d\u662f\u5f88\u660e\u767d\uff0c\u4f46\u662f\u6240\u6709\u7684\u8fd9\u4e00\u5207\u89c4\u5b9a\uff0c\u90fd\u662f\u4e3a\u4e86\u9632\u6b62\u4ea7\u751fICMP\u62a5\u6587\u7684\u65e0\u9650\u4f20\u64ad\u800c\u5b9a\u4e49\u7684\u3002<\/p>\n

    ICMP\u534f\u8bae\u5927\u81f4\u5206\u4e3a\u4e24\u7c7b\uff0c\u4e00\u79cd\u662f\u67e5\u8be2\u62a5\u6587\uff0c\u4e00\u79cd\u662f\u5dee\u9519\u62a5\u6587\u3002\u5176\u4e2d\u67e5\u8be2\u62a5\u6587\u6709\u4ee5\u4e0b\u51e0\u79cd\u7528\u9014:<\/p>\n

      \n
    1. ping\u67e5\u8be2<\/li>\n
    2. \u5b50\u7f51\u63a9\u7801\u67e5\u8be2\uff08\u7528\u4e8e\u65e0\u76d8\u5de5\u4f5c\u7ad9\u5728\u521d\u59cb\u5316\u81ea\u8eab\u7684\u65f6\u5019\u521d\u59cb\u5316\u5b50\u7f51\u63a9\u7801\uff09<\/li>\n
    3. \u65f6\u95f4\u6233\u67e5\u8be2\uff08\u53ef\u4ee5\u7528\u6765\u540c\u6b65\u65f6\u95f4\uff09<\/li>\n<\/ol>\n

      \u800c\u5dee\u9519\u62a5\u6587\u5219\u4ea7\u751f\u5728\u6570\u636e\u4f20\u9001\u53d1\u751f\u9519\u8bef\u7684\u65f6\u5019\u3002\u5c31\u4e0d\u8d58\u8ff0\u4e86\u3002<\/p>\n

      2.ICMP\u7684\u5e94\u7528–ping<\/h3>\n

      ping\u53ef\u4ee5\u8bf4\u662fICMP\u7684\u6700\u8457\u540d\u7684\u5e94\u7528\uff0c\u5f53\u6211\u4eec\u67d0\u4e00\u4e2a\u7f51\u7ad9\u4e0a\u4e0d\u53bb\u7684\u65f6\u5019\u3002\u901a\u5e38\u4f1aping\u4e00\u4e0b\u8fd9\u4e2a\u7f51\u7ad9\u3002ping\u4f1a\u56de\u663e\u51fa\u4e00\u4e9b\u6709\u7528\u7684\u4fe1\u606f\u3002\u4e00\u822c\u7684\u4fe1\u606f\u5982\u4e0b:<\/p>\n

      Reply from 10.4.24.1: bytes=32 time<1ms TTL=255
      \nReply from 10.4.24.1: bytes=32 time<1ms TTL=255
      \nReply from 10.4.24.1: bytes=32 time<1ms TTL=255
      \nReply from 10.4.24.1: bytes=32 time<1ms TTL=255<\/p>\n

      Ping\u00a0statistics for 10.4.24.1:
      \nPackets: Sent = 4, Received = 4, Lost = 0 (0% loss),
      \nApproximate round trip times in milli-seconds:
      \nMinimum = 0ms, Maximum = 0ms, Average = 0ms<\/p>\n

      ping\u8fd9\u4e2a\u5355\u8bcd\u6e90\u81ea\u58f0\u7eb3\u5b9a\u4f4d\uff0c\u800c\u8fd9\u4e2a\u7a0b\u5e8f\u7684\u4f5c\u7528\u4e5f\u786e\u5b9e\u5982\u6b64\uff0c\u5b83\u5229\u7528ICMP\u534f\u8bae\u5305\u6765\u4fa6\u6d4b\u53e6\u4e00\u4e2a\u4e3b\u673a\u662f\u5426\u53ef\u8fbe\u3002\u539f\u7406\u662f\u7528\u7c7b\u578b\u7801\u4e3a0\u7684ICMP\u53d1\u8bf7 \u6c42\uff0c\u53d7\u5230\u8bf7\u6c42\u7684\u4e3b\u673a\u5219\u7528\u7c7b\u578b\u7801\u4e3a8\u7684ICMP\u56de\u5e94\u3002ping\u7a0b\u5e8f\u6765\u8ba1\u7b97\u95f4\u9694\u65f6\u95f4\uff0c\u5e76\u8ba1\u7b97\u6709\u591a\u5c11\u4e2a\u5305\u88ab\u9001\u8fbe\u3002\u7528\u6237\u5c31\u53ef\u4ee5\u5224\u65ad\u7f51\u7edc\u5927\u81f4\u7684\u60c5\u51b5\u3002\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u00a0ping\u7ed9\u51fa\u6765\u4e86\u4f20\u9001\u7684\u65f6\u95f4\u548cTTL\u7684\u6570\u636e\u3002\u6211\u7ed9\u7684\u4f8b\u5b50\u4e0d\u592a\u597d\uff0c\u56e0\u4e3a\u8d70\u7684\u8def\u7531\u5c11\uff0c\u6709\u5174\u8da3\u5730\u53ef\u4ee5ping\u4e00\u4e0b\u56fd\u5916\u7684\u7f51\u7ad9\u6bd4\u5982sf.net\uff0c\u5c31\u53ef\u4ee5\u89c2\u5bdf\u5230\u4e00\u4e9b \u4e22\u5305\u7684\u73b0\u8c61\uff0c\u800c\u7a0b\u5e8f\u8fd0\u884c\u7684\u65f6\u95f4\u4e5f\u4f1a\u66f4\u52a0\u7684\u957f\u3002
      \nping\u8fd8\u7ed9\u6211\u4eec\u4e00\u4e2a\u770b\u4e3b\u673a\u5230\u76ee\u7684\u4e3b\u673a\u7684\u8def\u7531\u7684\u673a\u4f1a\u3002\u8fd9\u662f\u56e0\u4e3a\uff0cICMP\u7684ping\u8bf7\u6c42\u6570\u636e\u62a5\u5728\u6bcf\u7ecf\u8fc7\u4e00\u4e2a\u8def\u7531\u5668\u7684\u65f6\u5019\uff0c\u8def\u7531\u5668\u90fd\u4f1a\u628a\u81ea\u5df1\u7684ip\u653e\u5230\u8be5\u6570 \u636e\u62a5\u4e2d\u3002\u800c\u76ee\u7684\u4e3b\u673a\u5219\u4f1a\u628a\u8fd9\u4e2aip\u5217\u8868\u590d\u5236\u5230\u56de\u5e94icmp\u6570\u636e\u5305\u4e2d\u53d1\u56de\u7ed9\u4e3b\u673a\u3002\u4f46\u662f\uff0c\u65e0\u8bba\u5982\u4f55\uff0cip\u5934\u6240\u80fd\u7eaa\u5f55\u7684\u8def\u7531\u5217\u8868\u662f\u975e\u5e38\u7684\u6709\u9650\u3002\u5982\u679c\u8981\u89c2\u5bdf\u8def\u7531\uff0c \u6211\u4eec\u8fd8\u662f\u9700\u8981\u4f7f\u7528\u66f4\u597d\u7684\u5de5\u5177\uff0c\u5c31\u662f\u8981\u8bb2\u5230\u7684Traceroute(windows\u4e0b\u9762\u7684\u540d\u5b57\u53eb\u505atracert)\u3002<\/p>\n

      3.ICMP\u7684\u5e94\u7528–Traceroute<\/h3>\n

      Traceroute\u662f\u7528\u6765\u4fa6\u6d4b\u4e3b\u673a\u5230\u76ee\u7684\u4e3b\u673a\u4e4b\u95f4\u6240\u7ecf\u8def\u7531\u60c5\u51b5\u7684\u91cd\u8981\u5de5\u5177\uff0c\u4e5f\u662f\u6700\u4fbf\u5229\u7684\u5de5\u5177\u3002\u524d\u9762\u8bf4\u5230\uff0c\u5c3d\u7ba1ping\u5de5\u5177\u4e5f\u53ef\u4ee5\u8fdb\u884c\u4fa6\u6d4b\uff0c\u4f46\u662f\uff0c\u56e0\u4e3aip\u5934\u7684\u9650\u5236\uff0cping\u4e0d\u80fd\u5b8c\u5168\u7684\u8bb0\u5f55\u4e0b\u6240\u7ecf\u8fc7\u7684\u8def\u7531\u5668\u3002\u6240\u4ee5Traceroute\u6b63\u597d\u5c31\u586b\u8865\u4e86\u8fd9\u4e2a\u7f3a\u61be\u3002<\/p>\n

      Traceroute\u7684\u539f\u7406\u662f\u975e\u5e38\u975e\u5e38\u7684\u6709\u610f\u601d\uff0c\u5b83\u53d7\u5230\u76ee\u7684\u4e3b\u673a\u7684IP\u540e\uff0c\u9996\u5148\u7ed9\u76ee\u7684\u4e3b\u673a\u53d1\u9001\u4e00\u4e2aTTL=1\uff08\u8fd8\u8bb0\u5f97TTL\u662f\u4ec0\u4e48\u5417\uff1f\uff09\u7684UDP(\u540e\u9762\u5c31 \u77e5\u9053UDP\u662f\u4ec0\u4e48\u4e86)\u6570\u636e\u5305\uff0c\u800c\u7ecf\u8fc7\u7684\u7b2c\u4e00\u4e2a\u8def\u7531\u5668\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5305\u4ee5\u540e\uff0c\u5c31\u81ea\u52a8\u628aTTL\u51cf1\uff0c\u800cTTL\u53d8\u4e3a0\u4ee5\u540e\uff0c\u8def\u7531\u5668\u5c31\u628a\u8fd9\u4e2a\u5305\u7ed9\u629b\u5f03\u4e86\uff0c\u5e76\u540c\u65f6\u4ea7\u751f \u4e00\u4e2a\u4e3b\u673a\u4e0d\u53ef\u8fbe\u7684ICMP\u6570\u636e\u62a5\u7ed9\u4e3b\u673a\u3002\u4e3b\u673a\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u62a5\u4ee5\u540e\u518d\u53d1\u4e00\u4e2aTTL=2\u7684UDP\u6570\u636e\u62a5\u7ed9\u76ee\u7684\u4e3b\u673a\uff0c\u7136\u540e\u523a\u6fc0\u7b2c\u4e8c\u4e2a\u8def\u7531\u5668\u7ed9\u4e3b\u673a\u53d1ICMP\u6570\u636e \u62a5\u3002\u5982\u6b64\u5f80\u590d\u76f4\u5230\u5230\u8fbe\u76ee\u7684\u4e3b\u673a\u3002\u8fd9\u6837\uff0ctraceroute\u5c31\u62ff\u5230\u4e86\u6240\u6709\u7684\u8def\u7531\u5668ip\u3002\u4ece\u800c\u907f\u5f00\u4e86ip\u5934\u53ea\u80fd\u8bb0\u5f55\u6709\u9650\u8def\u7531IP\u7684\u95ee\u9898\u3002<\/p>\n

      \u6709\u4eba\u8981\u95ee\uff0c\u6211\u600e\u4e48\u77e5\u9053UDP\u5230\u6ca1\u5230\u8fbe\u76ee\u7684\u4e3b\u673a\u5462\uff1f\u8fd9\u5c31\u6d89\u53ca\u4e00\u4e2a\u6280\u5de7\u7684\u95ee\u9898\uff0cTCP\u548cUDP\u534f\u8bae\u6709\u4e00\u4e2a\u7aef\u53e3\u53f7\u5b9a\u4e49\uff0c\u800c\u666e\u901a\u7684\u7f51\u7edc\u7a0b\u5e8f\u53ea\u76d1\u63a7\u5c11\u6570\u7684\u51e0\u4e2a\u53f7\u7801\u8f83 \u5c0f\u7684\u7aef\u53e3\uff0c\u6bd4\u5982\u8bf480,\u6bd4\u5982\u8bf423,\u7b49\u7b49\u3002\u800ctraceroute\u53d1\u9001\u7684\u662f\u7aef\u53e3\u53f7>30000(\u771f\u53d8\u6001)\u7684UDP\u62a5\uff0c\u6240\u4ee5\u5230\u8fbe\u76ee\u7684\u4e3b\u673a\u7684\u65f6\u5019\uff0c\u76ee\u7684 \u4e3b\u673a\u53ea\u80fd\u53d1\u9001\u4e00\u4e2a\u7aef\u53e3\u4e0d\u53ef\u8fbe\u7684ICMP\u6570\u636e\u62a5\u7ed9\u4e3b\u673a\u3002\u4e3b\u673a\u63a5\u5230\u8fd9\u4e2a\u62a5\u544a\u4ee5\u540e\u5c31\u77e5\u9053\uff0c\u4e3b\u673a\u5230\u4e86<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      \u00a0\u00a0\u00a0 \u5176\u5b9e\u5bf9\u4e8eping\u8fd9\u4e2a\u547d\u4ee4\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u4f7f\u7528\u5230\uff0c\u6211\u4eec\u5e38\u5e38\u7528\u5b83\u6765\u68c0\u6d4b\u5230\u76ee\u7684\u670d\u52a1\u5668\u7684\u662f\u4e0d\u662f\u8054\u901a\u7684\uff0c\u8fd8\u6709\u67e5\u770b\u57df\u540d … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[7,21,11],"tags":[],"class_list":["post-2117","post","type-post","status-publish","format-standard","hentry","category-asp","category-yidong","category-chengxujiaoben"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2117"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2117\/revisions"}],"predecessor-version":[{"id":2118,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2117\/revisions\/2118"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}