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Date:      Sat, 17 Mar 2001 10:48:17 -0800
From:      Julian Elischer <julian@elischer.org>
To:        Alex Pilosov <alex@acecape.com>
Cc:        Nick Rogness <nick@rogness.net>, freebsd-net@FreeBSD.ORG, Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>
Subject:   Re: same interface Route Cache
Message-ID:  <3AB3B171.C89A0177@elischer.org>
References:  <Pine.BSO.4.10.10103171216120.8329-100000@spider.pilosoft.com>

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Alex Pilosov wrote:
> 
> On Sat, 17 Mar 2001, Nick Rogness wrote:
> 
> > There is no way to tell your packet to go back out to ISP #2.  That is the
> > point I'm trying to get across.  Unless your running a routing
> > daemon.  But is that really practical with cable modems, dsl, etc?...I
> > don't think so.
> <flame>
> Is the clue really gone from this list?
> </flame>
> 
>
> 
> With policy routing, you indeed will be able to multihome, without any
> cooperation of your upstream (assuming strict filters on their ingress
> interfaces) and have things work.

it should be possible to use IPFW and natd to do this:
IPFW could use Luigi's probability feature to select an interface to 
use for each initiating session and ipfw could use a stateful rule
to 'remember the choice made'

The final step is to select to which divert rule the packets eventually get
sent.
Each divert rule goes to a different natd, each of which is attached to a 
different outgoing interface.

> 
> --
> --
> Alex Pilosov            | http://www.acecape.com/dsl
> CTO - Acecape, Inc.     | AceDSL:The best ADSL in Bell Atlantic area
> 325 W 38 St. Suite 1005 | (Stealth Marketing Works! :)
> New York, NY 10018      |
> 
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     /       \ julian@elischer.org
    (   OZ    ) World tour 2000-2001
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