SOCK_RAW and Linux

        Hello,

I am experimenting problems with interface selection when using LIBNET_RAW4 (SOCK_RAW socket).

For instance, I have 2 interfaces on my box, eth0 and eth1, and when I intialize libnet with eth1, the packet is sent through eth0, whatever is the destination address.

Thus I have several questions:

• is this problem specific to Linux ?
• if yes, what kernels are targeted (mine is 2.4.21-pre5)
• Linux is developping its own way to handle packets with PF_PACKET. Wouldn't that be better to use them rather than general sockets (of course with the help of a #define __LINUX__ in the code)

--
Frederic RAYNAL, PhD
Chief Editor of MISC
http://www.security-labs.org
Multi-Systems & Internet Security Cookbook



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