From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [Bugme-new] [Bug 8382] New: 2.6.20 cannot route packets outside tunnel Date: Fri, 27 Apr 2007 16:05:54 -0700 Message-ID: <20070427160554.8419450c.akpm@linux-foundation.org> References: <200704272301.l3RN14As026026@fire-2.osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: "bugme-daemon@kernel-bugs.osdl.org" , frlinux@frlinux.net To: netdev@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([65.172.181.25]:34661 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757863AbXD0XGJ (ORCPT ); Fri, 27 Apr 2007 19:06:09 -0400 In-Reply-To: <200704272301.l3RN14As026026@fire-2.osdl.org> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org ,On Fri, 27 Apr 2007 16:01:04 -0700 bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=8382 > > Summary: 2.6.20 cannot route packets outside tunnel > Kernel Version: 2.6.20.9 > Status: NEW > Severity: high > Owner: yoshfuji@linux-ipv6.org > Submitter: frlinux@frlinux.net > > > Most recent kernel where this bug did *NOT* occur: 2.6.19.7 > Distribution: Debian Etch 4.0 > Hardware Environment: i386 VIA Samuel 2 700mhz > Software Environment: Debian Etch > Problem Description: > > I am using an IPv6 tunnel broker (SixXs) which is using aiccu (dynamic IPv4 > address using heartbeat to get in sync with IPv6 tunnel to SixXS). When using > 2.6.20.x it doesn't route packets outside the tunnel anymore. This means that > from my gateway, i can ping my local interface and my remote one but not a > single other IPv6 address. > > When trying to traceroute or send IPv6 packets from any other machine on my > network to an outside IPv6 address, i keep getting a network unreachable message. > > This was tested against 2.6.20.{5,7,8,9} and also 2.6.19.6/7. It works perfectly > on any 2.6.19.x kernel or previous but fails under 2.6.20.x > > I made a diff in the IPv6 stack between 19 and 20 but my programming skills are > clearly lacking :( > > Steps to reproduce: > > Compile with IPv6 settings that I am including with this bug report, 2.6.19 > works, 2.6.20 doesn't.