From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ferenc Wagner Subject: Re: ipv6 debugging Date: Mon, 18 Feb 2008 22:46:50 +0100 Message-ID: <87mypygcol.fsf@szonett.ki.iif.hu> References: <87zltyjr50.fsf@tac.ki.iif.hu> <3740A925537C481CAA40DE393FA0D00E@intranet.dti2.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: To: "Jorge Boncompte [DTI2]" Return-path: Received: from tac.ki.iif.hu ([193.6.222.43]:49310 "EHLO tac.ki.iif.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751738AbYBRVqx (ORCPT ); Mon, 18 Feb 2008 16:46:53 -0500 In-Reply-To: <3740A925537C481CAA40DE393FA0D00E@intranet.dti2.net> (Jorge Boncompte's message of "Mon, 18 Feb 2008 16:02:05 +0100") Sender: netdev-owner@vger.kernel.org List-ID: "Jorge Boncompte [DTI2]" writes: > Ferenc Wagner writes: > >> I'm kindly asking for some debugging tips with the following problem: >> a machine is running Linux 2.6.24.2, several 802.1q VLAN-s over >> active/backup bonding over two physical interfaces. Everything is >> allright, except for after a reboot, there's no IPv6, while IPv4 >> works. The router's ARP(6) table is empty, the machine doesn't answer >> ping6. However, if I start tcpdump -i bond0 ip6, everything is >> allright again. There are some indications that after some period >> without IPv6 traffic, the same can happen again. Are there known >> issues which can exhibit themselves like this? Other very similar >> setups don't show this erratic behaviour. >> >> I know that the above doesn't give a fully detailed picture, but >> thought that I'd better ask before taking the setup into pieces. > > This sounds to me like the same problem that I was having with > OSPF, I think ARP(6) uses multicast ethernet address too. Can you try > if the patch below, that I sent Patrick McHardy some days ago, fixes > your problem? Hi Jorge, Thank you very much! Your patch indeed fixes my problem. I hope the fix will make it into a stable release soon! -- Regards, Feri.