From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: Bug with IPv6-UDP address binding
Date: Thu, 09 Aug 2012 13:48:46 +0200
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Cc: netdev <netdev@vger.kernel.org>, Thomas Graf <tgraf@suug.ch>
To: Jesper Dangaard Brouer <brouer@redhat.com>
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On Thu, 2012-08-09 at 11:40 +0200, Jesper Dangaard Brouer wrote:

> Guess I should have read Stephens[1] first, as this problem with
> multihomed hosts is described  (on page 219).  He also states, that this
> is a problem/feature related to Berkely-derived implementations.  E.g.
> Solaris handle this, the way I expected. That is, the source IP address
> for the server's reply is the dest IP of the client's request.

Are you sure ?

So Solaris remembers in socket structure the destination IP address of
last UDP message delivered to userland ?

This is not multi thread safe, so it would be a very bad idea.