Re: an IP stack problem regarding routing and ARP

From: Arnaldo Carvalho de Melo (acme@conectiva.com.br)
Date: Sun Sep 23 2001 - 16:59:14 EST


Em Sun, Sep 23, 2001 at 05:56:14PM -0400, Pei Zheng escreveu:

> If a Linux box has 2 NICs, I would like to generate some packets in the
> kernel, sent them out from one NIC to an Ethernet switch, and then
> receive them on the other NIC. Is it possible, with the help of appropriate
> routing table, routing rules and ARP configuration? Or the kernel IP
> stack must be modified? It seems to me that if the kernel figures
> out that a packet's next hop is its local network interface, it will
> deliver to that interface through IP stack directly.

look at snull in Rubini's ldd2, available as FDL (iirc) at www.oreilly.com

- Arnaldo
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