From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] ipv6: addrconf: clear IPv6 addresses and routes when losing link Date: Wed, 27 Oct 2010 09:05:52 -0700 (PDT) Message-ID: <20101027.090552.189686029.davem@davemloft.net> References: <20101027.085115.104074771.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: brian.haley@hp.com, shemminger@vyatta.com, netdev@vger.kernel.org To: lorenzo@google.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:58691 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761145Ab0J0QF3 (ORCPT ); Wed, 27 Oct 2010 12:05:29 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: From: Lorenzo Colitti Date: Wed, 27 Oct 2010 09:01:25 -0700 > On Wed, Oct 27, 2010 at 8:51 AM, David Miller 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 :)