How to include an IP packet in C linux sockets?
Question
I want to include an IP packet in Socket programming. I have a readymade Ip packet which contains igmp packet. I don't want to design igmp protocol but want to use that packet to sent igmp query. By some how the Ip packet I have must be recognize as IP packet and not as TCP/UDP data.
2 answers
solution1
3 ACCPTED 2011-01-12 07:54:03
You have to use the raw socket with sendmsg . This need root permission.
solution2
0 2011-01-13 05:22:45
而且，如果您要发送IGMP数据包，则应使用setsockopt（）API。
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