From owner-freebsd-questions@FreeBSD.ORG Fri Jun 8 15:47:42 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D91621065672 for ; Fri, 8 Jun 2012 15:47:42 +0000 (UTC) (envelope-from lists@avioc.org) Received: from gage.amig.no (gage.amig.no [85.252.162.9]) by mx1.freebsd.org (Postfix) with ESMTP id 919548FC19 for ; Fri, 8 Jun 2012 15:47:42 +0000 (UTC) Received: from mail.internal.amig.no (mail.internal.amig.no [192.168.80.4]) by gage.amig.no (Postfix) with ESMTP id 1BB12153443; Fri, 8 Jun 2012 17:39:36 +0200 (CEST) X-Virus-Scanned: amavisd-new at mail.internal.amig.no Received: from gage.amig.no ([192.168.80.4]) by mail.internal.amig.no (mail.internal.amig.no [192.168.80.4]) (amavisd-new, port 10024) with LMTP id XSEfVU_OpLmx; Fri, 8 Jun 2012 17:39:35 +0200 (CEST) Received: from [172.24.149.154] (host-184-166-46-72.kls-mt.client.bresnan.net [184.166.46.72]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by gage.amig.no (Postfix) with ESMTPSA id 752DA15343F; Fri, 8 Jun 2012 17:39:34 +0200 (CEST) Message-ID: <4FD21CB4.1030002@avioc.org> Date: Fri, 08 Jun 2012 09:39:32 -0600 From: Brandon Weisz User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120604 Thunderbird/13.0 MIME-Version: 1.0 To: Bruce Cran References: <4FD12CFF.6020205@cran.org.uk> In-Reply-To: <4FD12CFF.6020205@cran.org.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: Configuration problem with IPv6 router ("cannot forward src") X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jun 2012 15:47:42 -0000 Make sure you are only advertising a /64 addr prefixlen in rtadvd.conf, and not the entire /48. On 6/7/2012 4:36 PM, Bruce Cran wrote: > I'm trying to set up a IPv6 router (running -current) on my home > network. My ISP gives me a /128 via PPP and I have a /48 allocation, > which I use to give em0 and tun0 public addresses in different subnets > (tun0 is assigned the address via ppp.linkup). > I've added all the IPv6 settings to rc.conf (ipv6_gateway_enable, > ipv6_network_interfaces, rtadvd_enable etc.) and I can ping IPv6 sites > from the router. > > The problem is that rtadvd continues advertising the default gateway > as tun0's link-local address - and pinging from a machine on the > network results in "cannot forward src" messages on the router > (strangely, despite hisaddr being fe80::205:... in ppp.log, the kernel > logs the address as fe80:f::205:...). > > Is there some extra configuration I've likely missed that's needed > when using IPv6 via PPP? >