From owner-freebsd-net@FreeBSD.ORG Mon Jun 30 22:15:08 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E901E1065676 for ; Mon, 30 Jun 2008 22:15:08 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mail.cksoft.de (mail.cksoft.de [62.111.66.27]) by mx1.freebsd.org (Postfix) with ESMTP id A2E9A8FC20 for ; Mon, 30 Jun 2008 22:15:08 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from localhost (amavis.str.cksoft.de [192.168.74.71]) by mail.cksoft.de (Postfix) with ESMTP id 2972341C7AB; Tue, 1 Jul 2008 00:15:06 +0200 (CEST) X-Virus-Scanned: amavisd-new at cksoft.de Received: from mail.cksoft.de ([62.111.66.27]) by localhost (amavis.str.cksoft.de [192.168.74.71]) (amavisd-new, port 10024) with ESMTP id y1cuYKo-yXk7; Tue, 1 Jul 2008 00:15:05 +0200 (CEST) Received: by mail.cksoft.de (Postfix, from userid 66) id C39D941C7B8; Tue, 1 Jul 2008 00:15:05 +0200 (CEST) Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net [10.111.66.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.int.zabbadoz.net (Postfix) with ESMTP id 78FEC44487F; Mon, 30 Jun 2008 22:12:29 +0000 (UTC) Date: Mon, 30 Jun 2008 22:12:29 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@maildrop.int.zabbadoz.net To: "Eugene M. Kim" <20080111.freebsd.org@ab.ote.we.lv> In-Reply-To: <48693E39.4080104@ab.ote.we.lv> Message-ID: <20080630220842.X83875@maildrop.int.zabbadoz.net> References: <48693E39.4080104@ab.ote.we.lv> X-OpenPGP-Key: 0x14003F198FEFA3E77207EE8D2B58B8F83CCF1842 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-net@FreeBSD.org Subject: Re: bridge(4) and IPv6 link-local address X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Jun 2008 22:15:09 -0000 On Mon, 30 Jun 2008, Eugene M. Kim wrote: Hi, > A quick question: Is bridge(4) supposed /not/ to automatically configure an > IPv6 link-local address? yes there is a check for this in the code and if remoed (tried that lately) more things go wrong. > I'm trying to use it to bridge a wired segment and a wireless segment, and > router advertisement over bridge0 wouldn't work because, with bridge0 lacking > a LL address, the router uses a non-LL address as the source address for RA > packets, which then is ignored as invalid by other IPv6 nodes. yes, seem something similar lately but ETIMEOUT on debugging. The problem basically was: lan bridge ath --- wlan client the LL address was on the "lan" interface. ping6 LL on lan from wlan client did not work. I could see the packets being bridged and visible on all interfaces and even the router on lan noticed them but there was no reply going to the client. ping6 from the bridge ``box'' to the wlan client and everything was fine as nd was seeded. Removing the check we ended up with the same LL address on both bridge and the lan interface if I can remember correctly and you do not want that... it's a bit tricky and there is something that does not work as expected, right. If you find the time to debug it I'll happily test patches;-) -- Bjoern A. Zeeb Stop bit received. Insert coin for new game.