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Date:      Wed, 26 Jun 2002 14:09:57 -0700
From:      Lars Eggert <larse@ISI.EDU>
To:        Matt Impett <M.Impett@flarion.com>
Cc:        "'freebsd-net@freebsd.org'" <freebsd-net@freebsd.org>, "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org>
Subject:   Re: source address based routing
Message-ID:  <3D1A2DA5.8070609@isi.edu>
References:  <8C92E23A3E87FB479988285F9E22BE46FDE777@ftmail.lab.flarion.com>

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Matt Impett wrote:
> I have looked at the firewall rather exetensively, but I don't know that it
> can do what I want.

Maybe you should describe what you want in a little more detail then :-)

> From what I can tell, the firewall fwd functionality allows you to redirect
> a packet to a different next hop based on any of the firewall matching rules
> (one of which is source address).
> 
> What I want to do, however, is redirect the packet to a tunnel (gif device)
> that has no next-hop associated with it.  Is there any way to do this??

How does it not have a next hop associated with it? Are you leaving the 
addresses unconfigured? Maybe you can still use ipfw like this:

	route add DUMMY_NEXT_HOP -interface GIF
	ipfw add fwd DUMMY_NEXT_HOP all from SOURCE to any

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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