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Date:      Fri, 2 Nov 2001 16:37:09 -0800
From:      "Crist J. Clark" <cristjc@earthlink.net>
To:        Lars Eggert <larse@ISI.EDU>
Cc:        Randall Stewart <randall@stewart.chicago.il.us>, freebsd-net@FreeBSD.ORG
Subject:   Re: SCTP and multiple default routes
Message-ID:  <20011102163709.R4360@blossom.cjclark.org>
In-Reply-To: <3BE30405.5040508@isi.edu>; from larse@ISI.EDU on Fri, Nov 02, 2001 at 12:37:25PM -0800
References:  <3BE30097.C02C828D@stewart.chicago.il.us> <3BE30405.5040508@isi.edu>

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On Fri, Nov 02, 2001 at 12:37:25PM -0800, Lars Eggert wrote:
> Randall Stewart wrote:
> 
> > I am working on a SCTP implementation for KAME and
> > have a question/issue with routing entries in
> > the current freebsd kernel (4.x stream).
> 
> ...
> 
> > What would be nice is to have multiple default routes
> > and then have the ability to be able to do a:
> 
> I'm not sure multiple default routes make sense.

They are however required to be truly standards compliant. From 
RFC 1122 (Requirements for Internet Hosts -- Communication Layers),

            When there is no route cache entry for the destination host
            address (and the destination is not on the connected
            network), the IP layer MUST pick a gateway from its list of
            "default" gateways.  The IP layer MUST support multiple
            default gateways.

FreeBSD is not actually compliant on this issue.
-- 
Crist J. Clark                     |     cjclark@alum.mit.edu
                                   |     cjclark@jhu.edu
http://people.freebsd.org/~cjc/    |     cjc@freebsd.org

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