From owner-freebsd-net@FreeBSD.ORG  Thu Jan  2 09:41:49 2014
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx2.freebsd.org (mx2.freebsd.org
 [IPv6:2001:1900:2254:206a::19:2])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id DAE12E64
 for <freebsd-net@freebsd.org>; Thu,  2 Jan 2014 09:41:49 +0000 (UTC)
Received: from butcher-nb.yandex.net (hub.freebsd.org
 [IPv6:2001:1900:2254:206c::16:88])
 by mx2.freebsd.org (Postfix) with ESMTP id 2AA6F23F4;
 Thu,  2 Jan 2014 09:41:48 +0000 (UTC)
Message-ID: <52C53443.7050704@FreeBSD.org>
Date: Thu, 02 Jan 2014 13:41:23 +0400
From: "Andrey V. Elsukov" <ae@FreeBSD.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:24.0) Gecko/20100101 Thunderbird/24.1.0
MIME-Version: 1.0
To: Peter Jeremy <peter@rulingia.com>, freebsd-net@freebsd.org
Subject: Re: IPv4 Multicast MAC Address issues
References: <20140101085721.GA34334@server.rulingia.com>
 <20140101200303.GS99167@funkthat.com>
 <20140102064356.GL87348@server.rulingia.com>
 <20140102071328.GW99167@funkthat.com>
In-Reply-To: <20140102071328.GW99167@funkthat.com>
X-Enigmail-Version: 1.6
Content-Type: multipart/mixed; boundary="------------070105090207070507050803"
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 02 Jan 2014 09:41:49 -0000

This is a multi-part message in MIME format.
--------------070105090207070507050803
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

On 02.01.2014 11:13, John-Mark Gurney wrote:
> Hmmm... looking at the comments for arpresolve, it says dst is the next
> hop which would be the gateway, and not the multicast address, so that
> could be it, but I don't know the code well enough to figure out why
> dst isn't the multicast address...

Hi All,

can you try this patch?

-- 
WBR, Andrey V. Elsukov

--------------070105090207070507050803
Content-Type: text/x-patch;
 name="multicast.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="multicast.diff"

Index: sys/netinet/ip_output.c
===================================================================
--- sys/netinet/ip_output.c	(revision 260185)
+++ sys/netinet/ip_output.c	(working copy)
@@ -418,6 +418,7 @@ again:
 			goto done;
 		}
 
+		gw = dst;
 		goto sendit;
 	}
 

--------------070105090207070507050803--