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From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Network Development <netdev@vger.kernel.org>
Subject: Re: Source routing without rules?
Date: Wed, 28 Aug 2013 03:14:37 +0200	[thread overview]
Message-ID: <20130828011437.GA30092@order.stressinduktion.org> (raw)
In-Reply-To: <CALCETrVRZF0XLtH9o37Y=ZVMyyExBs7dLYFLOgJ-=vFqy+a_ig@mail.gmail.com>

On Tue, Aug 27, 2013 at 05:16:21PM -0700, Andy Lutomirski wrote:
> I'm about to implement a trivial source routing policy for the third
> time, and this is IMO stupid.  I want to have two routes to a network.
>  Each route should specify a src, and, if the flow matches the src,
> then that route should win.
> 
> The rules that don't work are:
> 
> ip route add <net> via <gw1> dev <dev1> metric 0
> ip route add <net> via <gw2> dev <dev2> src <dev2addr> metric 10

src is actually the preferred src address. In ipv6 land there is a RTA_SRC
(look for ip route *from* parameter) route attribute settable to only
select routes if the from-source matches the route. If you implement
such a feature I would go with the same design (IPV6_SUBTREES).

Greetings,

  Hannes

  parent reply	other threads:[~2013-08-28  1:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-28  0:16 Source routing without rules? Andy Lutomirski
2013-08-28  0:57 ` Brian Haley
2013-08-28  1:29   ` Andy Lutomirski
2013-08-28  1:14 ` Hannes Frederic Sowa [this message]
2013-08-28  1:46   ` Andy Lutomirski
2013-08-28  1:51     ` Hannes Frederic Sowa

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