From owner-freebsd-stable@FreeBSD.ORG Tue Jun 6 22:58:11 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2DF0416CBCE for ; Tue, 6 Jun 2006 22:28:23 +0000 (UTC) (envelope-from Paul.Dekkers@surfnet.nl) Received: from dorsvlegel.surfnet.nl (dorsvlegel.surfnet.nl [192.87.108.12]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7B82443D98 for ; Tue, 6 Jun 2006 22:27:52 +0000 (GMT) (envelope-from Paul.Dekkers@surfnet.nl) Received: from gromit.chippie.org ([145.99.219.147]) by dorsvlegel.surfnet.nl (Exim 4.62) with esmtps (TLSv1:AES256-SHA:256) id 1Fnk1f-0000U5-Hs; Wed, 07 Jun 2006 00:27:51 +0200 Message-ID: <44860164.3060705@surfnet.nl> Date: Wed, 07 Jun 2006 00:27:48 +0200 From: Paul Dekkers User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.4) Gecko/20060516 Thunderbird/1.5.0.4 Mnenhy/0.7.4.0 MIME-Version: 1.0 To: Philippe Pegon References: <446231F7.2040103@crc.u-strasbg.fr> In-Reply-To: <446231F7.2040103@crc.u-strasbg.fr> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-SURFnet-Sender-check: 8ae21ef524b09d992f22af3c70f0e299 Cc: freebsd-stable@freebsd.org Subject: Re: carp with IPv6 broken on 6.1-RELEASE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Jun 2006 22:58:11 -0000 Hi, Philippe Pegon wrote: > it seems that carp is broken on FreeBSD 6.1-RELEASE when an inet6 > address is configured on a carp interface. Since I upgraded from 6.0 > to 6.1 (today) I can't see IPv6 carp advertisement with tcpdump. > > Did someone else observe this ? I think I just did, or something similar/related. I just upgraded the 'master' of 2 machines to 6.1 (where the backup was already running 6.1 for a couple of days) and now I see my carp session 'flapping'. The master machine kept running master, the backup was switching to master once every 5 seconds I think, stealing some traffic and notifying me with: kernel: carp0: MASTER -> BACKUP (more frequent advertisement received) ... which of course is not true. I'm sure there is no firewall in the way (in fact I disabled it for a short while), I saw the vrrp advertisements (while the error occurs I see the machine that is suppost to be backup sending one advertisement every 4/5 seconds as well)... this config was running before, I'm confident there is something wrong. As soon as I remove the IPv6 address from the interface everything seems to work fine, role only switches when there's a reason for it. Philippe, did you create a pr? Paul