From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753133AbYE2H1w (ORCPT ); Thu, 29 May 2008 03:27:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751384AbYE2H1i (ORCPT ); Thu, 29 May 2008 03:27:38 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:34613 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751290AbYE2H1h (ORCPT ); Thu, 29 May 2008 03:27:37 -0400 Date: Thu, 29 May 2008 00:27:29 -0700 From: Andrew Morton To: pomac@vapor.com Cc: Linux-kernel , linux-net , netdev@vger.kernel.org Subject: Re: [ipv6] Odd behaviour... Message-Id: <20080529002729.d87fed29.akpm@linux-foundation.org> In-Reply-To: <1211842711.8367.11.camel@localhost> References: <1211842711.8367.11.camel@localhost> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien wrote: > Hi, > > I just recently acquired a new ipv6 tunnel since my two previous brokers > has gone out of business. I now use hurricane electrics tunnel since i > have really good ping times to it's node in Amsterdam. > > Anyways, i have setup a local network tunnel and enabled forwarding. > > After about 300 seconds, it all stops working. I have to disable and > re-enable it on the firewall/router to get it working again. > > tcpdump shows the router/firewall doing odd things like: > (i renamed my host to piv6) > > 00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request, > seq 321, length 64 > > 00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq > 321, length 64 > > 00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6, > redirect, piv6 to piv6, length 160 > > 00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq > 321, length 64 > --- > > fe80::55e4::1b90 is the local ip of the ipv6 tunnel. > (note: the packet never arrives at it's destination) > > Any ideas of what could be going wrong? (cc netdev - afaik linux-net is kind of dead) What kernel version are you running?