{"id":474,"date":"2026-07-16T13:48:28","date_gmt":"2026-07-16T05:48:28","guid":{"rendered":"https:\/\/www.fishh.top\/?p=474"},"modified":"2026-07-16T13:48:58","modified_gmt":"2026-07-16T05:48:58","slug":"ipv4%e5%b8%b8%e7%94%a8%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"https:\/\/www.fishh.top\/?p=474","title":{"rendered":"ipv4\u5e38\u7528\u77e5\u8bc6"},"content":{"rendered":"\n

ip<\/h2>\n\n\n\n

\u4e00\u4e2aIP\u7531\u9996\u90e8<\/strong>\u548c\u6570\u636e<\/strong>\u90e8\u5206\u7ec4\u6210\u3002\u9996\u90e8\u524d\u4e00\u90e8\u5206\u7684\u957f\u5ea6\u56fa\u5b9a\uff0c\u517120B,<\/strong>\u8fd8\u6709\u6700\u592740\u5b57\u8282<\/strong>\u7684\u53ef\u53d8\u90e8\u5206.<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u7248\u672c<\/strong>\uff1a\u53604\u4f4d\uff0c\u6307IP\u7684\u7248\u672c\uff0c\u6bd4\u5982\u662fIPv4\u8fd8\u662fIPv6\u7248\u672c\uff0c\u901a\u4fe1\u53cc\u65b9\u7684\u7248\u672c\u5fc5\u987b\u4e00\u81f4\u3002<\/p>\n\n\n\n

\u9996\u90e8\u957f\u5ea6<\/strong>\uff1a\u53604\u4f4d\uff0c\u7531\u9996\u90e8<\/strong>\u548c\u6570\u636e<\/strong>\u90e8\u5206\u7ec4\u6210\u3002\u9996\u90e8\u524d\u4e00\u90e8\u5206\u7684\u957f\u5ea6\u56fa\u5b9a\uff0c\u517120B<\/strong>,\u8fd8\u6709\u6700\u592740\u5b57\u8282\u7684\u53ef\u53d8\u90e8\u5206\uff0c\u56e0\u6b64IP\u7684\u9996\u90e8\u957f\u5ea6\u7684\u6700\u5927\u503c\u662f 60 \u5b57\u8282 \u3002<\/p>\n\n\n\n

\u603b\u957f\u5ea6<\/strong>\uff1a\u536016\u4f4d\uff0c\u6307\u9996\u90e8\u548c\u6570\u636e\u90e8\u5206\u957f\u5ea6\u4e4b\u548c\uff0c\u5355\u4f4d\u4e3a\u5b57\u8282\uff0c\u56e0\u6b64\u6570\u636e\u62a5\u7684\u6700\u5927\u957f\u5ea6\u4e3a(2^16 – 1) = 65535B\u3002<\/p>\n\n\n\n

\u6807\u8bc6(identification)<\/strong>\uff1a\u5360 16 \u4f4d\uff0c\u7528\u6765\u4ea7\u751f IP \u6570\u636e\u62a5\u7684\u6807\u8bc6\u3002\u5b83\u662f\u4e00\u4e2a\u8ba1\u6570\u5668\uff0c\u6bcf\u4ea7\u751f\u4e00\u4e2a\u6570\u636e\u62a5\u5c31\u52a01\uff0c\u5e76\u8d4b\u503c\u7ed9\u6807\u8bc6\u5b57\u6bb5\u3002\u4f46\u8fd9\u4e2a \u201c\u6807\u8bc6\u201d \u5e76\u4e0d\u7b49\u540c\u4e8e\u5e8f\u53f7\uff0c\u56e0\u4e3aIP\u662f\u65e0\u8fde\u63a5\u670d\u52a1\uff0c\u6570\u636e\u62a5\u4e0d\u5b58\u5728\u6309\u5e8f\u63a5\u6536\u7684\u95ee\u9898\u3002\u5f53\u4e00\u4e2a\u6570\u636e\u62a5\u957f\u5ea6\u8d85\u8fc7MTU\u65f6\uff0c\u5fc5\u987b\u5206\u7247\uff0c\u8fd9\u4e2a\u6807\u8bc6\u5b57\u6bb5\u7684\u503c\u5c31\u4f1a\u88ab\u590d\u5236\u5230\u6240\u6709\u7684\u6570\u636e\u62a5\u7247\u7684\u6807\u8bc6\u5b57\u6bb5\u4e2d\uff0c\u76f8\u540c\u7684\u6807\u8bc6\u5b57\u6bb5\u7684\u503c\u4f7f\u5f97\u5206\u7247\u540e\u7684\u5404\u6570\u636e\u62a5\u7247\u6700\u540e\u90fd\u80fd\u6b63\u786e\u5730\u91cd\u88c5\u6210\u4e3a\u539f\u6765\u7684\u6570\u636e\u62a5\u3002<\/p>\n\n\n\n

\u6807\u5fd7(flag)<\/strong>\uff1a\u53603\u4f4d\uff0c\u76ee\u524d\u53ea\u6709\u524d\u4e24\u4f4d\u6709\u610f\u4e49\u3002\u6807\u5fd7\u5b57\u6bb5\u7684\u6700\u4f4e\u4f4d\u662f MF (More Fragment)<\/strong>\u3002MF=1 \u8868\u793a\u540e\u9762\u8fd8\u6709\u5206\u7247<\/strong>\uff0cMF=0 \u8868\u793a\u6700\u540e\u4e00\u4e2a\u5206\u7247<\/strong>\u3002\u6807\u5fd7\u5b57\u6bb5\u4e2d\u95f4\u7684\u4e00\u4f4d\u662f DF (Don’t Fragment)<\/strong> \u3002\u53ea\u6709\u5f53 DF=0 \u65f6\u624d\u5141\u8bb8\u5206\u7247<\/strong>\u3002<\/p>\n\n\n\n

\u7247\u504f\u79fb<\/strong>\uff1a\u536013\u4f4d\uff0c\u5b83\u6307\u51fa\u4e86\u8f83\u957f\u7684\u5206\u7ec4\u5728\u5206\u7247\u540e\uff0c\u67d0\u7247\u5728\u539f\u5206\u7ec4\u4e2d\u7684\u76f8\u5bf9\u4f4d\u7f6e\u3002\u7247\u504f\u79fb\u4ee58\u4e2a\u5b57\u8282\u4e3a\u504f\u79fb\u5355\u4f4d\uff0c\u5373\u6bcf\u4e2a\u5206\u7247\u7684\u957f\u5ea6\u4e00\u5b9a\u662f8B(64\u4f4d)\u7684\u6574\u6570\u500d<\/strong>\u3002<\/p>\n\n\n\n

\u751f\u5b58\u65f6\u95f4(Time To Live)<\/strong>\uff1a\u53608\u4f4d\uff0c\u8868\u660e\u8fd9\u662f\u6570\u636e\u62a5\u5728\u7f51\u7edc\u4e2d\u7684\u5bff\u547d\uff0c\u5373\u6570\u636e\u62a5\u5728\u7f51\u7edc\u4e2d\u53ef\u901a\u8fc7\u7684\u8def\u7531\u5668\u6570\u7684\u6700\u5927\u503c\u3002\u8def\u7531\u5668\u5728\u6bcf\u6b21\u8f6c\u53d1\u6570\u636e\u62a5\u524d\uff0c\u5c31\u628aTTL\u503c\u51cf1\u3002\u82e5TTL\u503c\u51cf\u4e3a\u96f6\u65f6\uff0c\u5c31\u4e22\u5f03\u8fd9\u4e2a\u6570\u636e\u62a5\u3002<\/p>\n\n\n\n

\u534f\u8bae<\/strong>\uff1a\u53608\u4f4d\uff0c\u6307\u51fa\u6b64\u6570\u636e\u62a5\u643a\u5e26\u7684\u6570\u636e\u4f7f\u7528\u4f55\u79cd\u534f\u8bae\uff0c\u53ca\u5206\u7ec4\u7684\u6570\u636e\u90e8\u5206\u5e94\u4ea4\u7ed9\u54ea\u4e2a\u4f20\u8f93\u5c42\u534f\u8bae\uff0c\u5982TCP\u3001UDP\u7b49\u3002\u5176\u4e2d\u503c\u4e3a6\u8868\u793aTCP\uff0c\u4e3a17\u8868\u793aUDP\u3002<\/p>\n\n\n\n

\u9996\u90e8\u6821\u9a8c\u548c<\/strong>\uff1a\u536016\u4f4d\uff0c\u6821\u9a8c\u6570\u636e\u62a5 \u5934\u90e8 \u5728\u4f20\u8f93\u4e2d\u662f\u5426\u51fa\u9519\u3002\u8fd9\u4e2a\u5b57\u6bb5\u53ea\u6821\u9a8c\u6570\u636e\u62a5\u7684\u9996\u90e8\uff0c\u4e0d\u6821\u9a8c\u6570\u636e\u90e8\u5206\u3002\u6ce8\u610f\u8fd9\u8fb9\u4e0d\u91c7\u7528CRC\u68c0\u9a8c\u7801\u8ba1\u7b97\uff0c\u91c7\u7528\u7684\u662f\u5176\u5b83\u66f4\u7b80\u5355\u7684\u8ba1\u7b97\u65b9\u5f0f\uff0c\u8fd9\u91cc\u4e0d\u5c55\u5f00\u3002<\/p>\n\n\n\n

\u6e90\u5730\u5740<\/strong>\uff1a\u536032\u4f4d\uff0c\u8868\u793a\u53d1\u9001\u7aef\u4e3b\u673a\u7684IP\u5730\u5740\u3002<\/p>\n\n\n\n

\u76ee\u7684\u5730\u5740<\/strong>\uff1a\u536032\u4f4d\uff0c\u8868\u793a\u63a5\u6536\u65b9\u7684IP\u5730\u5740\u3002<\/p>\n\n\n\n

IP\u6570\u636e\u62a5\u5206\u7247<\/h3>\n\n\n\n

\u5982\u679cIP\u6570\u636e\u62a5\u7684\u603b\u957f\u5ea6\u5927\u4e8e\u4ee5\u592a\u7f51\u5e27<\/strong>\u7684MTU(Maximum Transmission Unit)<\/strong>\uff0c\u5c31\u9700\u8981\u5c06IP\u6570\u636e\u62a5\u4e2d\u7684\u6570\u636e\u5206\u88c5\u5728\u4e24\u4e2a\u6216\u591a\u4e2a\u8f83\u5c0f\u7684IP\u6570\u636e\u62a5\u6c47\u603b\uff0c\u8fd9\u4e9b\u8f83\u5c0f\u7684\u6570\u636e\u62a5\u79f0\u4e3a\u7247.<\/strong><\/p>\n\n\n\n

\u5206\u7247\u65b9\u5f0f\uff1a\u4e00\u4e2a\u957f\u4e3a3820B\u7684IP\u6570\u636e\u62a5(20B\u7684\u9996\u90e8\uff0c3800B\u7684\u6570\u636e\u90e8\u5206)\uff0c\u9700\u8981\u88ab\u8f6c\u53d1\u5230\u4e00\u6761MTU\u4e3a1500B\u7684\u94fe\u8def\u4e0a\u3002\u8fd9\u610f\u5473\u7740\u539f\u59cb\u6570\u636e\u62a5\u4e2d3800B\u7684\u6570\u636e\u5fc5\u987b\u88ab\u5206\u914d\u52303\u4e2a\u72ec\u7acb\u7684\u7247\u4e2d(\u6bcf\u7247\u4e5f\u662f\u4e00\u4e2aIP\u6570\u636e\u62a5)\uff0c\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

ip\u670d\u52a1\u7684\u7279\u70b9:\u65e0\u72b6\u6001,\u65e0\u8fde\u63a5,\u4e0d\u53ef\u9760<\/h3>\n\n\n\n

\u65e0\u72b6\u6001:\u6307\u7684\u662fIP\u901a\u4fe1\u53cc\u65b9\u4e0d\u540c\u6b65\u4f20\u8f93\u72b6\u6001\u4fe1\u606f.ip\u6570\u636e\u62a5\u53d1\u51fa\u540e\u6ca1\u6709\u5148\u540e\u4e4b\u5206,\u6ca1\u6709\u4e0a\u4e0b\u6587\u5173\u7cfb,\u8fd9\u79cd\u670d\u52a1\u6700\u5927\u7f3a\u70b9\u662f\u65e0\u6cd5\u5904\u7406\u4e71\u5e8f\u548c\u91cd\u590d\u7684IP\u6570\u636e\u62a5,\u4e0d\u8fc7\u80dc\u5728\u7b80\u5355\u9ad8\u6548.\u63a5\u6536\u7aef\u4e00\u65e6\u63a5\u6536\u5230\u5b8c\u6574\u7684ip\u6570\u636e\u62a5(\u5982\u679c\u662fIP\u6570\u636e\u62a5\u5206\u7247\u5219\u4f1a\u5148\u7ec4\u88c5\u51fa\u5b8c\u6574\u7684)\u5c31\u8f6c\u4ea4\u7ed9\u4e0a\u5c42.<\/p>\n\n\n\n

\u65e0\u8fde\u63a5:\u6307\u7684\u662fIP\u901a\u4fe1\u53cc\u65b9\u90fd\u4e0d\u957f\u4e45\u5730\u7ef4\u6301\u5bf9\u65b9\u7684\u4efb\u4f55\u4fe1\u606f.\u56e0\u6b64,\u4e0a\u5c42\u534f\u8bae\u6bcf\u6b21\u53d1\u9001\u6570\u636e\u90fd\u9700\u8981\u6307\u5b9a\u5bf9\u65b9\u7684ip\u5730\u5740.<\/p>\n\n\n\n

\u4e0d\u53ef\u9760:\u6307\u7684\u662fIP\u534f\u8bae\u4e0d\u80fd\u4fdd\u8bc1IP\u6570\u636e\u62a5\u80fd\u51c6\u786e\u5730\u5230\u8fbe\u63a5\u6536\u7aef,\u5b83\u53ea\u80fd\u627f\u8bfa\u5c3d\u53ef\u80fd\u4ea4\u4ed8.\u63a5\u6536\u7aef\u5728\u53d1\u73b0\u9519\u8bef\u540e\u4f1a\u8fd4\u56de\u4e00\u4e2aICMP\u9519\u8bef\u62a5\u6587,\u63a5\u6536\u7aef\u77e5\u9053\u51fa\u9519\u540e\u544a\u77e5\u4e0a\u5c42,\u4f46\u4e0d\u4f1a\u91cd\u53d1\u6570\u636e\u62a5.\u53ef\u9760\u4f20\u8f93\u53ef\u7531\u4e0a\u5c42\u534f\u8baetcp\u5b9e\u73b0.<\/p>\n\n\n\n

NAT<\/p>\n\n\n\n

\u63a5\u4e0b\u6765\u6765\u4ecb\u7ecd\u4e0b\u7f51\u7edc\u5730\u5740\u8f6c\u6362NAT(Network Address Translation)\u3002\u5148\u6765\u4e86\u89e3\u4e0b\u4ec0\u4e48\u662f\u4e13\u7528\u5730\u5740\uff1a\u4e13\u7528\u5730\u5740\u662f\u4e13\u95e8\u7528\u4f5c\u4e00\u4e9b\u53ea\u9700\u5185\u90e8\u901a\u4fe1\u7684\u673a\u6784\u4f7f\u7528\u7684\u5730\u5740\uff0c\u65e0\u9700\u8fde\u63a5\u5230\u56e0\u7279\u7f51\uff0c\u8def\u7531\u5668\u770b\u5230\u4e13\u7528\u5730\u5740\u5c31\u4e0d\u8f6c\u53d1\uff0c\u6240\u4ee5\u8bf4\u4e13\u7528\u5730\u5740\u4f5c\u4e3a\u76ee\u7684\u5730\u5740\u662f\u4e0d\u53ef\u80fd\u5728\u56e0\u7279\u7f51\u4e0a\u88ab\u4f20\u9001\u7684\u3002<\/p>\n\n\n\n

\u4e09\u79cd\u5c40\u57df\u7f51\u5730\u5740:<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u73b0\u5728\u7684\u95ee\u9898\u662f\uff1a\u5982\u679c\u4e13\u7528\u7f51\u60f3\u548c\u56e0\u7279\u7f51\u7684\u4e3b\u673a\u901a\u4fe1\uff0c\u600e\u4e48\u529e\uff1f\u8fd9\u65f6NAT\u6d3e\u4e0a\u7528\u573a\u4e86\u3002NAT\u7684\u4f5c\u7528\uff1a\u6240\u6709\u4f7f\u7528\u672c\u5730\u5730\u5740\u7684\u4e3b\u673a\u5728\u548c\u5916\u754c\u901a\u4fe1\u65f6\uff0c\u90fd\u8981\u5728 NAT \u8def\u7531\u5668\u4e0a\u5c06\u5176\u672c\u5730\u5730\u5740\u8f6c\u6362\u6210\u5168\u7403 IP \u5730\u5740\uff0c\u624d\u80fd\u548c\u4e92\u8054\u7f51\u8fde\u63a5\uff0c\u5de5\u4f5c\u8fc7\u7a0b\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
    \n
  1. \u79bb\u5f00\u4e13\u7528\u7f51\u65f6\uff1a\u66ff\u6362\u6e90\u5730\u5740\uff0c\u5c06\u5185\u90e8\u5730\u5740\u66ff\u6362\u4e3a\u5168\u7403\u5730\u5740\u3002<\/strong><\/li>\n\n\n\n
  2. \u8fdb\u5165\u4e13\u7528\u7f51\u65f6\uff1a\u66ff\u6362\u76ee\u7684\u5730\u5740\uff0c\u5c06\u5168\u7403\u5730\u5740\u66ff\u6362\u4e3a\u5185\u90e8\u5730\u5740\u3002<\/strong><\/li>\n<\/ol>\n\n\n\n

    NAT\u6709\u4e2a\u5c40\u9650\u6027\uff1a\u5f53 NAT \u8def\u7531\u5668\u5177\u6709n\u4e2a\u5168\u7403 IP \u5730\u5740\u65f6\uff0c\u4e13\u7528\u7f51\u5185\u6700\u591a\u53ea\u53ef\u540c\u65f6\u6709n\u53f0\u4e3b\u673a\u63a5\u5165\u5230\u4e92\u8054\u7f51\u3002\u6240\u4ee5\u6b64\u65f6NAPT(Network Address Port Translation)\u6d3e\u4e0a\u7528\u573a\uff1a<\/strong><\/p>\n\n\n\n

    \u8fd9\u6837\uff0c\u7528\u4e00\u4e2a\u5168\u7403IP\u5730\u5740\uff0c\u5c31\u53ef\u4ee5\u4f7f\u591a\u4e2a\u62e5\u6709\u672c\u5730\u5730\u5740\u7684\u4e3b\u673a\u540c\u65f6\u548c\u56e0\u7279\u7f51\u4e0a\u7684\u4e3b\u673a\u8fdb\u884c\u901a\u4fe1\u3002<\/strong><\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n\n\n\n

    \u4e13\u7528\u7f51\u4e3b\u673a\u4e0d\u4e3b\u52a8\u8054\u7cfb\u56e0\u7279\u7f51\u7684\u4e3b\u673a\uff0c\u56e0\u7279\u7f51\u7684\u4e3b\u673a\u5c31\u4e00\u5b9a\u4e0d\u4f1a\u4e3b\u52a8\u8054\u7cfb\u4e13\u7528\u7f51\u7684\u4e3b\u673a(\u4e3b\u52a8\u8054\u7cfb\u4e5f\u8054\u7cfb\u4e0d\u5230)\u3002<\/strong><\/p>\n\n\n\n

    ARP(\u5730\u5740\u89e3\u6790\u534f\u8bae,\u6570\u636e\u94fe\u8def\u5c42)<\/h3>\n\n\n\n

    \u4f5c\u7528\uff1a\u4ece IP \u5730\u5740\u89e3\u6790\u51fa MAC \u5730\u5740<\/strong><\/p>\n\n\n\n

    \u6bcf\u53f0\u4e3b\u673a\u90fd\u4f1a\u6709\u81ea\u5df1\u5730ARP\u8868,\u7528\u4e8e\u8bb0\u5f55ip\u548cmac\u5730\u5740\u7684\u5bf9\u5e94\u5173\u7cfb.TTl\u4e3a\u751f\u5b58\u65f6\u95f4,\u9ed8\u8ba4\u4e3a20\u5206\u949f<\/strong><\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n\n\n\n

    \u5728\u4e3b\u673a\u53d1\u9001\u6570\u636e\u62a5\u65f6\uff0c\u53d1\u9001\u65b9\u4e3b\u673aA\u5148\u5728ARP\u9ad8\u901f\u7f13\u5b58<\/strong>\u4e2d\u67e5\u770b\u662f\u5426\u6709\u76ee\u7684\u4e3b\u673aB\u7684IP\u5730\u5740\uff0c\u6709\uff0c\u5c31\u67e5\u5176mac\u5730\u5740\uff0c\u5e76\u5c06\u6b64\u786c\u4ef6\u5730\u5740\u5199\u5165MAC\u5e27\uff0c\u7136\u540e\u901a\u8fc7\u5c40\u57df\u7f51\u5c06\u6539MAC\u5e27\u53d1\u5f80\u6b21\u76ee\u7684mac\u5730\u5740\uff1b\u5982\u679c\u6ca1\u6709\uff0c\u4e3b\u673a\u4fbf\u6307\u793a\u9002\u914d\u5668\u4f7f\u7528\u7528MAC\u5e7f\u64ad\u5730\u5740\uff08\u5373FF-FF-FF-FF-FF-FF\uff09\u6765\u53d1\u9001ARP\u8bf7\u6c42\u5206\u7ec4\uff0cARP\u8bf7\u6c42\u5206\u7ec4\u7684\u76ee\u7684\u662f\u8be2\u95ee\u5b50\u7f51\u4e0a\u6240\u6709\u5176\u4ed6\u4e3b\u673a\u548c\u8def\u7531\u5668\uff0c\u4ee5\u786e\u5b9a\u5bf9\u5e94\u4e8e\u8981\u89e3\u6790\u7684IP\u5730\u5740\u7684\u90a3\u4e2aMAC\u5730\u5740\u3002<\/p>\n\n\n\n

    \u9002\u914d\u5668\u5728\u94fe\u8def\u5c42\u5e27\u4e2d\u5c01\u88c5\u8fd9\u4e2aARP\u5206\u7ec4\uff0c\u7528\u5e7f\u64ad\u5730\u5740\u4f5c\u4e3a\u5e27\u7684\u76ee\u7684\u5730\u5740\u5e76\u5c06\u8be5\u5e27\u4f20\u8f93\u8fdb\u672c\u7f51\u7edc\u4e2d\u3002\u5f53\u76ee\u7684\u4e3b\u673a\u63a5\u6536\u5230\u8be5ARP\u8bf7\u6c42\u540e\uff0c\u4fbf\u53d1\u56de\u4e00\u4e2a\u54cd\u5e94ARP\u5206\u7ec4\uff0c\u54cd\u5e94ARP\u5206\u7ec4\u5305\u62ec\u4e86\u4e3b\u673aB\u7684IP\u4e0eMAC\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u4e3b\u673aA\u6536\u5230\u540e\u5c06\u6b21\u6620\u5c04\u5199\u5165\u81ea\u5df1\u7684ARP\u7f13\u5b58\uff0c\u6700\u540e\u6309\u67e5\u8be2\u5230\u7684mac\u5730\u5740\u53d1\u9001MAC\u5e27\u3002<\/p>\n\n\n\n

    \u4e0d\u540c\u7f51\u7edc\u7684\u901a\u4fe1,\u5c31\u662f\u4e00\u6b21\u53c8\u4e00\u6b21\u5730\u5728\u5404\u81ea\u7f51\u7edc\u8fdb\u884cARP\u627e\u51fa\u6765\u7684\u8def\u5f84.<\/p>\n\n\n\n

    ICMP(\u7f51\u7edc\u5c42)<\/h3>\n\n\n\n

    ICMP (Internet Control Message Protocol) \u5141\u8bb8\u4e3b\u673a\u6216\u8def\u7531\u5668\u62a5\u544a\u5dee\u9519\u60c5\u51b5\u548c\u63d0\u4f9b\u6709\u5173\u5f02\u5e38\u60c5\u51b5\u7684\u62a5\u544a\uff0cICMP\u6700\u5178\u578b\u7684\u7528\u9014\u662f\u5dee\u9519\u62a5\u544a\u3002ICMP \u62a5\u6587\u4f5c\u4e3a IP \u5c42\u6570\u636e\u62a5\u7684\u6570\u636e\uff0c\u52a0\u4e0a\u6570\u636e\u62a5\u7684\u9996\u90e8\uff0c\u7ec4\u6210 IP \u6570\u636e\u62a5\u53d1\u9001\u51fa\u53bb\u3002ICMP \u62a5\u6587\u7684\u683c\u5f0f\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n\n\n\n
    \"\"<\/div><\/figure>\n\n\n\n

    \u7ec8\u70b9\u4e0d\u53ef\u8fbe<\/strong>\uff1a\u8def\u7531\u5668\u6216\u4e3b\u673a\u4e0d\u80fd\u4ea4\u4ed8\u6570\u636e\u62a5\u65f6\u5c31\u5411\u6e90\u70b9\u53d1\u9001\u7ec8\u70b9\u4e0d\u53ef\u8fbe\u62a5\u6587\u3002<\/p>\n\n\n\n

    \u65f6\u95f4\u8d85\u8fc7<\/strong>\uff1a\u8def\u7531\u5668\u6536\u5230\u751f\u5b58\u65f6\u95f4\u4e3a\u96f6\u7684\u6570\u636e\u62a5\uff0c\u6216\u8005\u4e0d\u5728\u9884\u5148\u89c4\u5b9a\u7684\u65f6\u95f4\u5185\u6536\u5230\u4e00\u4e2a\u6570\u636e\u62a5\u7684\u5168\u90e8\u6570\u636e\u62a5\u7247\u65f6\uff0c\u4e22\u5f03\u5df2\u6536\u5230\u7684\u6570\u636e\u62a5\u5e76\u5411\u6e90\u70b9\u53d1\u9001\u65f6\u95f4\u8d85\u8fc7\u62a5\u6587\u3002<\/p>\n\n\n\n

    \u53c2\u6570\u95ee\u9898<\/strong>\uff1a\u8def\u7531\u5668\u6216\u76ee\u7684\u4e3b\u673a\u6536\u5230\u7684\u6570\u636e\u62a5\u9996\u90e8\u4e2d\u6709\u7684\u5b57\u6bb5\u503c\u4e0d\u6b63\u786e\uff0c\u5c31\u4e22\u5f03\u6240\u6709\u5df2\u6536\u5230\u7684\u8be5\u6570\u636e\u62a5\u7247\u5e76\u5411\u6e90\u70b9\u53d1\u9001\u53c2\u6570\u95ee\u9898\u62a5\u6587\u3002<\/p>\n\n\n\n

    \u6539\u53d8\u8def\u7531(\u91cd\u5b9a\u5411)<\/strong>\uff1a\u8def\u7531\u5668\u628a\u6539\u53d8\u8def\u7531\u62a5\u6587\u53d1\u9001\u7ed9\u4e3b\u673a\uff0c\u8ba9\u4e3b\u673a\u76f4\u5230\u4e0b\u6b21\u5e94\u5c06\u6570\u636e\u62a5\u4ea4\u7ed9\u53e6\u5916\u7684\u8def\u7531\u5668\u3002(\u7b80\u5355\u6765\u8bf4\uff1a\u8def\u7531\u5668\u65e9\u5df2\u901a\u8fc7\u548c\u5176\u5b83\u8def\u7531\u5668\u4ea4\u6362\u4fe1\u606f\uff0c\u786e\u8ba4\u4e86\u6bd4\u81ea\u5df1\u66f4\u4f18\u7684\u8f6c\u53d1\u8def\u5f84\u3002\u4e8e\u662f\u5982\u679c\u4e3b\u673a\u4f20\u9001\u6570\u636e\u62a5\u65f6\u7ecf\u8fc7\u4e86\u8be5\u8def\u7531\u5668\uff0c\u8be5\u8def\u7531\u5668\u5c31\u4f1a\u53d1\u9001\u6539\u53d8\u8def\u7531\u62a5\u6587\u7ed9\u4e3b\u673a\uff0c\u544a\u8bc9\u5b83\uff0c\u6700\u4f73\u8def\u7ebf\u4e0d\u662f\u6211\u54e6\uff0c\u4f60\u5e94\u8be5\u9009\u62e9\u53e6\u4e00\u4e2a\u8def\u7531\u624d\u80fd\u8d70\u6700\u4f73\u8def\u7ebf\u5462\uff01)<\/p>\n\n\n\n

    ICMP\u5dee\u9519\u62a5\u544a\u62a5\u6587\uff0c\u5b83\u7684\u6570\u636e\u90e8\u5206\uff0c\u7531\u6536\u5230\u7684\u9700\u8981\u8fdb\u884c\u5dee\u9519\u62a5\u544a\u7684IP\u6570\u636e\u62a5\u7684\u9996\u90e8\u548c\u5176\u6570\u636e\u5b57\u6bb5\u7684\u524d8\u4e2a\u5b57\u8282\u63d0\u53d6\u51fa\u6765\u7ec4\u6210<\/strong>\u3002\u518d\u52a0\u4e0a\u76f8\u5e94\u7684ICMP\u5dee\u9519\u62a5\u544a\u62a5\u6587\u7684\u524d8\u4e2a\u5b57\u8282\uff0c\u5c31\u6784\u6210\u4e86ICMP\u5dee\u9519\u62a5\u544a\u62a5\u6587\u3002<\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"

    ip \u4e00\u4e2aIP\u7531\u9996\u90e8\u548c\u6570\u636e\u90e8\u5206\u7ec4\u6210\u3002\u9996\u90e8\u524d\u4e00\u90e8\u5206\u7684\u957f\u5ea6\u56fa\u5b9a\uff0c\u517120B,\u8fd8\u6709\u6700\u592740\u5b57\u8282\u7684\u53ef\u53d8\u90e8\u5206. \u7248\u672c\uff1a\u53604 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-474","post","type-post","status-publish","format-standard","hentry","category-wenzhang"],"_links":{"self":[{"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/posts\/474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fishh.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=474"}],"version-history":[{"count":1,"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/posts\/474\/revisions"}],"predecessor-version":[{"id":491,"href":"https:\/\/www.fishh.top\/index.php?rest_route=\/wp\/v2\/posts\/474\/revisions\/491"}],"wp:attachment":[{"href":"https:\/\/www.fishh.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fishh.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fishh.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}