{"id":1861,"date":"2025-11-08T10:27:56","date_gmt":"2025-11-08T02:27:56","guid":{"rendered":"https:\/\/1212967.xyz\/blog\/?p=1861"},"modified":"2025-11-08T10:41:43","modified_gmt":"2025-11-08T02:41:43","slug":"%e6%8e%92%e6%9f%a5-ping-dup%ef%bc%9a%e5%85%89%e7%8c%ab-dmz-%e4%b8%bb%e6%9c%ba%e5%af%bc%e8%87%b4%e7%9a%84","status":"publish","type":"post","link":"https:\/\/1212967.xyz\/blog\/2025\/11\/08\/%e6%8e%92%e6%9f%a5-ping-dup%ef%bc%9a%e5%85%89%e7%8c%ab-dmz-%e4%b8%bb%e6%9c%ba%e5%af%bc%e8%87%b4%e7%9a%84\/","title":{"rendered":"\u6392\u67e5 Ping DUP\uff1a\u5149\u732b DMZ \u4e3b\u673a\u5bfc\u81f4\u7684"},"content":{"rendered":"\n

\u5982\u9898\uff0c\u6628\u665a\u7531\u4e8e\u6253\u4e0d\u5f00openwrt\u7684\u7f51\u9875\u7ba1\u7406\u754c\u9762\uff08\u663e\u793aconnection_reset\uff09\u548cssh\uff08broken pipe\uff09\uff0c\u7a81\u7136\u53d1\u73b0ping openwrt\u7684ip\u4f1a\u51fa\u73b0dup\u5305\uff1a<\/p>\n\n\n\n

PING 192.168.1.115 (192.168.1.115): 56 data bytes\n64 bytes from 192.168.1.115: icmp_seq=0 ttl=128 time=7.751 ms\n64 bytes from 192.168.1.115: icmp_seq=0 ttl=127 time=7.998 ms (DUP!)<\/code><\/pre>\n\n\n\n
\u5f00\u59cb\u4ee5\u4e3a\u662f\u865a\u62df\u673a\u7f51\u7edc\u914d\u7f6e\u95ee\u9898\uff0c\u5404\u79cd\u6539mac\/\u6539\u7f51\u5361\u76f4\u901a\u90fd\u6ca1\u7528…\u540e\u6765\u53d1\u73b0\u628a\u8ba9windows\u7269\u7406\u673a\u7528\u8fd9\u4e2aIP\u8fd8\u662f\u6709dup<\/p>\n\n\n\n
\u8c01\u5728\u72d7\u53eb\uff1f<\/h3>\n\n\n\n
\u65e2\u7136\u6709\u91cd\u590d\u5305\uff0c\u90a3\u5c31\u770b\u770b\u662f\u8c01\u53d1\u7684\u597d\u4e86\uff0c\u4f7f\u7528tcpdump\u6293\u53d6icmp\u5305\uff1a<\/p>\n\n\n\n
~ % sudo tcpdump icmp -e -s0 -n\ntcpdump: data link type PKTAP\ntcpdump: verbose output suppressed, use -v[v]... for full protocol decode\nlistening on pktap, link-type PKTAP (Apple DLT_PKTAP), snapshot length 524288 bytes\n10:03:18.639872 6c:b1:33:-:-:- > 10:ff:e0:-:-:-, ethertype IPv4 (0x0800), length 98: 192.168.1.96 > 192.168.1.115: ICMP echo request, id 48908, seq 0, length 64\n10:03:18.645981 10:ff:e0:-:-:- > 6c:b1:33:-:-:-, ethertype IPv4 (0x0800), length 98: 192.168.1.115 > 192.168.1.96: ICMP echo reply, id 48908, seq 0, length 64\n10:03:18.646424 70:37:8e:-:-:- > 6c:b1:33:-:-:-, ethertype IPv4 (0x0800), length 98: 192.168.1.115 > 192.168.1.96: ICMP echo reply, id 48908, seq 0, length 64<\/code><\/pre>\n\n\n\n

\u7531\u4e8e10:ff:e0:-:-:-\u662f\u6211\u7269\u7406\u673a\u7684mac\uff0c\u90a3\u4e48\u5c31\u662f70:37:8e:-:-:-\u5728\u72d7\u53eb
\u524d\u5f80https:\/\/macaddresslookup.io\/zh \u67e5\u8be2\u8bbe\u5907\u5236\u9020\u5546\uff0c\u53d1\u73b0\u662fTianyi Telecom Terminals Company Limited\uff0c\u4e5f\u5c31\u662f…\u5149\u732b\uff1f<\/p>\n\n\n\n
\u4f60\u5728\u72d7\u53eb\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u540c\u6837\u4f7f\u7528tcpdump\uff0c\u53d1\u73b0tcp\u5305\u5149\u732b\u7adf\u7136\u4e5f\u4f1a\u590d\u5236\u4e00\u4efd\uff0c\u8bf4\u660e\u662f\u5728\u5149\u732b\u4e2d\u5f00\u542f\u4e86\u4ec0\u4e48\u8f6c\u53d1\u529f\u80fd<\/p>\n\n\n\n
\u6700\u540e\u5b9a\u4f4d\u5230\u662f\u7531\u4e8e\u8bbe\u7f6e\u4e86DMZ\u4e3b\u673a\u4e3a192.168.1.115\uff0c\u5173\u95ed\u5373\u53ef<\/p>\n\n\n\n
\u5149\u732b\u578b\u53f7\u662fTYFZA1\uff1b\u5982\u679c\u6709\u9047\u5230\u76f8\u540c\u95ee\u9898\uff0c\u7136\u540e\u8bbe\u5907\u5217\u8868\u91cc\u8fd8\u627e\u4e0d\u5230\u51b2\u7a81\u8bbe\u5907\u7684\uff0c\u8bf7\u5148\u6000\u7591\u5149\u732b\uff08<\/p>\n\n\n\n
\u4ee5\u53ca\uff0c\u8fd9DMZ\u5b9e\u73b0\u6709\u95ee\u9898\u5427\uff1f\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"
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