From owner-freebsd-net@FreeBSD.ORG Tue Aug 30 01:19:44 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DB0A16A41F; Tue, 30 Aug 2005 01:19:44 +0000 (GMT) (envelope-from bmah@freebsd.org) Received: from a.mail.sonic.net (a.mail.sonic.net [64.142.16.245]) by mx1.FreeBSD.org (Postfix) with ESMTP id 47B5843D46; Tue, 30 Aug 2005 01:19:44 +0000 (GMT) (envelope-from bmah@freebsd.org) Received: from tomcat.kitchenlab.org (tomcat.kitchenlab.org [64.142.31.107]) by a.mail.sonic.net (8.13.3/8.13.3) with ESMTP id j7U1Jh9P026526 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Mon, 29 Aug 2005 18:19:44 -0700 Received: from tomcat.kitchenlab.org (localhost.kitchenlab.org [127.0.0.1]) by tomcat.kitchenlab.org (8.13.3/8.13.1) with ESMTP id j7U1JhjS019136; Mon, 29 Aug 2005 18:19:43 -0700 (PDT) (envelope-from bmah@freebsd.org) Received: (from bmah@localhost) by tomcat.kitchenlab.org (8.13.3/8.13.1/Submit) id j7U1JhEP019135; Mon, 29 Aug 2005 18:19:43 -0700 (PDT) (envelope-from bmah@freebsd.org) X-Authentication-Warning: tomcat.kitchenlab.org: bmah set sender to bmah@freebsd.org using -f From: "Bruce A. Mah" To: Andrew Thompson In-Reply-To: <1125351478.2344.44.camel@localhost> References: <1125346643.2344.31.camel@localhost> <20050829211720.GA55642@heff.fud.org.nz> <1125351478.2344.44.camel@localhost> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-qcyfLhfSfLi5x0EIeh5h" Date: Mon, 29 Aug 2005 18:19:42 -0700 Message-Id: <1125364782.19062.3.camel@tomcat.kitchenlab.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 FreeBSD GNOME Team Port Cc: freebsd-net@freebsd.org, bmah@freebsd.org Subject: Re: if_bridge and IPv6? 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: Tue, 30 Aug 2005 01:19:44 -0000 --=-qcyfLhfSfLi5x0EIeh5h Content-Type: text/plain Content-Transfer-Encoding: quoted-printable If memory serves me right, Bruce A. Mah wrote: > If memory serves me right, Andrew Thompson wrote: >=20 > > From what I can tell this is from the bridge itself, does bridging work > > between ipv6 hosts on either side of the bridge? >=20 > Hmm...I haven't tried that yet. Unfortunately I'm not in close > proximity to the system in question at the moment, so it'll be a few > hours (evening, San Francisco time) until I can try this. I'll test and > report back. Bridging of IPv6 packets going between two hosts on either side of the bridge appears to work just fine (to the point where I can do ping6 and ssh across the bridge). > PS. Food for thought: Should bridge devices have IFF_MULTICAST set? > Mine doesn't. >=20 > hornet# ifconfig bridge0 > bridge0: flags=3D41 mtu 1500 > inet (foo) netmask 0xffffff00 > inet6 (bar) prefixlen 64 > ether ac:de:48:cd:e2:32 > priority 32768 hellotime 2 fwddelay 15 maxage 20 > member: sis1 flags=3D3 > member: sis0 flags=3D3 This looks more and more suspicious to me. IPv6 ND requires multicast to work and there are several explicit checks for IFF_MULTICAST in the IPv6 output path and neighbor discovery code. Bruce. --=-qcyfLhfSfLi5x0EIeh5h Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQBDE7Qu2MoxcVugUsMRAmlAAKDEnodIAhiNurXc8JyUi5K/5dglugCffD80 0MqTDOS/oBsCVvZP/FJIwVU= =7Oqu -----END PGP SIGNATURE----- --=-qcyfLhfSfLi5x0EIeh5h--