Re: About net part of the kernel

Ben Collins (bcollins@debian.org)
Wed, 20 Feb 2002 00:05:27 -0500

On Tue, Feb 19, 2002 at 10:58:53PM -0600, Sandeep Gopal Nijsure wrote:
> Hi,
>
> I want to make, say, a machine 10.0.0.5 accept an IP packet with the
> destination address of 10.0.0.2. I hope I can do this by changing a bit of
> kernel networking code, where it's decided whether to accept an IP packet
> as a local packet.. I could not locate the code.. could anybody tell me
> where exactly the decision process take place?

You could just use device aliasing:

ifconfig eth0 10.0.0.5
ifconfig eth0:1 10.0.0.2

Either that, or if you simply want to sniff network packets, look into
turning on promiscuous mode (as tcpdump does).

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