From owner-freebsd-net@FreeBSD.ORG Thu Jan 2 06:44:08 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 1B220425 for ; Thu, 2 Jan 2014 06:44:08 +0000 (UTC) Received: from vps.rulingia.com (vps.rulingia.com [103.243.244.15]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8C10F1A69 for ; Thu, 2 Jan 2014 06:44:07 +0000 (UTC) Received: from server.rulingia.com (c220-239-250-249.belrs5.nsw.optusnet.com.au [220.239.250.249]) by vps.rulingia.com (8.14.7/8.14.7) with ESMTP id s026i15w027393 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 2 Jan 2014 17:44:02 +1100 (EST) (envelope-from peter@rulingia.com) X-Bogosity: Ham, spamicity=0.000000 Received: from server.rulingia.com (localhost.rulingia.com [127.0.0.1]) by server.rulingia.com (8.14.7/8.14.7) with ESMTP id s026hu62073534 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 2 Jan 2014 17:43:56 +1100 (EST) (envelope-from peter@server.rulingia.com) Received: (from peter@localhost) by server.rulingia.com (8.14.7/8.14.7/Submit) id s026humu073533 for freebsd-net@freebsd.org; Thu, 2 Jan 2014 17:43:56 +1100 (EST) (envelope-from peter) Date: Thu, 2 Jan 2014 17:43:56 +1100 From: Peter Jeremy To: freebsd-net@freebsd.org Subject: Re: IPv4 Multicast MAC Address issues Message-ID: <20140102064356.GL87348@server.rulingia.com> References: <20140101085721.GA34334@server.rulingia.com> <20140101200303.GS99167@funkthat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0eh6TmSyL6TZE2Uz" Content-Disposition: inline In-Reply-To: <20140101200303.GS99167@funkthat.com> X-PGP-Key: http://www.rulingia.com/keys/peter.pgp User-Agent: Mutt/1.5.22 (2013-10-16) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Jan 2014 06:44:08 -0000 --0eh6TmSyL6TZE2Uz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2014-Jan-01 12:03:04 -0800, John-Mark Gurney wrote: >Peter Jeremy wrote this message on Wed, Jan 01, 2014 at 19:57 +1100: >> I'm trying to use multicast on my home network for the first time and >> have found an apparent anomoly in the destination MAC address. =2E.. >> FreeBSD shows that as the multicast MAC filter. Unfortunately, it >> seems that (at least on FreeBSD-10), the destination MAC address >> uses the low 23 bits of the IP address of my default route. >This is probably a bug, and I have confirmed this on: >FreeBSD carbon.funkthat.com 11.0-CURRENT FreeBSD 11.0-CURRENT #4 r256870:2= 58399M: Wed Nov 20 12:33:22 PST 2013 jmg@carbon.funkthat.com:/usr/src/s= ys/amd64/compile/lockprof amd64 Thanks. I've since checked 9.2/amd64 and it's OK there, so this is a regression. I've raised kern/185395. --=20 Peter Jeremy --0eh6TmSyL6TZE2Uz Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iKYEARECAGYFAlLFCqxfFIAAAAAALgAoaXNzdWVyLWZwckBub3RhdGlvbnMub3Bl bnBncC5maWZ0aGhvcnNlbWFuLm5ldDBCRjc3QTcyNTg5NEVCRTY0RjREN0VFRUZF OEE0N0JGRjAwRkI4ODcACgkQ/opHv/APuIcC/ACfZWhaYPj9p+FE7kAFDj8dr95+ PBgAn3RCpymGzDhxJHc13kkZhvt2Ynlb =4C57 -----END PGP SIGNATURE----- --0eh6TmSyL6TZE2Uz--