*BSD News Article 83087


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From: gpalmer@webspan.net (Gary Palmer)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Two devices with same IP
Date: 17 Nov 1996 04:16:03 GMT
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References: <56ltqk$nhv@csugrad.cs.vt.edu> <56lvvc$62f$1@gail.ripco.com>
    <56m19m$u08@csugrad.cs.vt.edu>
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In article <56m19m$u08@csugrad.cs.vt.edu>,
	jagnew@csugrad.cs.vt.edu (H. Jared Agnew) writes:
> I'm sorry I must not have been clear enough, I'm talking about having two
> devices, be they ethernet cards or modems in one machine with the same IP.
> 
>     -------     192.168.0.1     --------    192.168.0.1  ---------
>     ^local net  ^ethernet card  ^dual holmed host  ^modem   ^world

PPP / SLIP links work if you give them the IP of the ethernet card in
the machine. However, giving two ethernet's the same IP won't as it
breaks IP routing (P2P interfaces are special cased in the routing
code)

Gary