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多播报文发送/接收程序接收不到报文,但tcpdump能够监控到多播报文,同样的程序在其他环境相同的机器上可以正常发送/接收到多播报文,怀疑是机器配置的问题,请高手解惑。
root@sdisp_24:~# tcpdump -i eth1 udp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth1, link-type EN10MB (Ethernet), capture size 96 bytes
22:38:42.688530 IP 10.1.164.9.9999 > 226.2.2.2.9999: UDP, length: 9
22:38:47.690437 IP 10.1.164.7.9999 > 226.2.2.2.9999: UDP, length: 9
22:38:52.690108 IP 10.1.164.8.9999 > 226.2.2.2.9999: UDP, length: 9
22:39:02.698071 IP 10.1.164.9.9999 > 226.2.2.2.9999: UDP, length: 9 |
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