netdev - Re: [PATCH] ipv6: addrconf: clear IPv6 addresses and routes when losing link

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Message-Id: <20101027.090552.189686029.davem@davemloft.net>
Date:	Wed, 27 Oct 2010 09:05:52 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	lorenzo@...gle.com
Cc:	brian.haley@...com, shemminger@...tta.com, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv6: addrconf: clear IPv6 addresses and routes when
 losing link

From: Lorenzo Colitti <lorenzo@...gle.com>
Date: Wed, 27 Oct 2010 09:01:25 -0700

> On Wed, Oct 27, 2010 at 8:51 AM, David Miller <davem@...emloft.net> wrote:
>>> As the patch stands, they don't. Only autoconfigured addresses will be
>>> cleared, because addrconf_ifdown() does not remove any addresses that
>>> are permanent (unless they are link-local, in which case they are
>>> recreated as soon as link comes back).
>>
>> Ok, and that brings us back to the issue of losing a TCP connection
>> over a link-local et al. address during a minor link flap.
> 
> TCP connections don't go away when the address they are using goes
> away. They go away if their address goes away forever. As mentioned
> above in the thread, I did test this :)

Ok, that's good enough for me :)
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