From owner-freebsd-net@FreeBSD.ORG  Thu Sep 10 16:07:18 2009
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 022C7106568B
	for <freebsd-net@freebsd.org>; Thu, 10 Sep 2009 16:07:18 +0000 (UTC)
	(envelope-from randy@psg.com)
Received: from ran.psg.com (ran.psg.com [IPv6:2001:418:1::36])
	by mx1.freebsd.org (Postfix) with ESMTP id D691A8FC21
	for <freebsd-net@freebsd.org>; Thu, 10 Sep 2009 16:07:17 +0000 (UTC)
Received: from localhost ([127.0.0.1] helo=rmac.psg.com)
	by ran.psg.com with esmtp (Exim 4.69 (FreeBSD))
	(envelope-from <randy@psg.com>)
	id 1MlmB2-0000Ms-76; Thu, 10 Sep 2009 16:07:16 +0000
Received: from rmac.local.psg.com (localhost [127.0.0.1])
	by rmac.psg.com (Postfix) with ESMTP id ED81C29D6C4F;
	Thu, 10 Sep 2009 09:07:15 -0700 (PDT)
Date: Thu, 10 Sep 2009 09:07:15 -0700
Message-ID: <m2fxaurdfw.wl%randy@psg.com>
From: Randy Bush <randy@psg.com>
To: Claudio Jeker <cjeker@diehard.n-r-g.com>
In-Reply-To: <20090910145626.GE23661@diehard.n-r-g.com>
References: <m21vmfs7c0.wl%randy@psg.com> <m2ljkmrhvz.wl%randy@psg.com>
	<20090910145626.GE23661@diehard.n-r-g.com>
User-Agent: Wanderlust/2.15.5 (Almost Unreal) Emacs/22.3 Mule/5.0 (SAKAKI)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
Cc: freebsd-net@freebsd.org
Subject: Re: forwarding when two rip defaults
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 10 Sep 2009 16:07:18 -0000

>>>> say i run routed and receive rip default from two routers, on the same
>>>> local ether.  what is the forwarding?  i presume it's not smart enough
>>>> to balance flows.  i hope not alternating packets.  clue, please?
>>> Unless you have RADIX_MPATH in your kernel (with a recent FreeBSD, ie:
>>> 8.0) it'll choose one at random
>> aha!  that was the clue.  docs are a bit thin, still looking.  but thank
>> you.
> I don't want to disrupt the party but I seriously doubt that routed
> supports multipath routing. Routed's radix code is unable to handle
> multipath routes.

maybe i am confused.  but my momma told me that routing != forwarding.

i.e. routed will receive two default routes and i hope would install
them in the fib, where RADIX_MPATH forwarding would take over.  am i
wrong about what routed will do?  will it choose only one to install in
the fib?

randy