From owner-freebsd-current@FreeBSD.ORG  Sun Jul 19 02:09:32 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 61649106564A
	for <freebsd-current@freebsd.org>; Sun, 19 Jul 2009 02:09:32 +0000 (UTC)
	(envelope-from bms@incunabulum.net)
Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com
	[66.111.4.25]) by mx1.freebsd.org (Postfix) with ESMTP id 377378FC08
	for <freebsd-current@freebsd.org>; Sun, 19 Jul 2009 02:09:32 +0000 (UTC)
	(envelope-from bms@incunabulum.net)
Received: from compute1.internal (compute1.internal [10.202.2.41])
	by out1.messagingengine.com (Postfix) with ESMTP id 9AB323B93C1;
	Sat, 18 Jul 2009 22:09:31 -0400 (EDT)
Received: from heartbeat2.messagingengine.com ([10.202.2.161])
	by compute1.internal (MEProxy); Sat, 18 Jul 2009 22:09:31 -0400
X-Sasl-enc: Qybq6gWiiCzGKGoKWCgXQNoTWPZww82Y+Vlt8Ml+LmON 1247969371
Received: from [192.168.123.18]
	(82-35-112-254.cable.ubr07.dals.blueyonder.co.uk [82.35.112.254])
	by mail.messagingengine.com (Postfix) with ESMTPSA id 2FE8BA089;
	Sat, 18 Jul 2009 22:09:31 -0400 (EDT)
Message-ID: <4A628056.60009@incunabulum.net>
Date: Sun, 19 Jul 2009 03:09:26 +0100
From: Bruce Simpson <bms@incunabulum.net>
User-Agent: Thunderbird 2.0.0.22 (Windows/20090605)
MIME-Version: 1.0
To: Pieter de Goeje <pieter@degoeje.nl>
References: <200907182056.47383.pieter@degoeje.nl>
In-Reply-To: <200907182056.47383.pieter@degoeje.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-current@freebsd.org
Subject: Re: Sending multicast datagrams broken (regression)
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 19 Jul 2009 02:09:32 -0000

Pieter de Goeje wrote:
> I'm observing that multicast IPv4 UDP datagrams sent from the latest 8.0-BETA2 
> are being discarded. The code below used to work with 7.2.
>   

Can you tcpdump this?

This may be related to an llentry related regression which Xin Li 
recently posted a patch for, it appears that layer 2 addresses for 
multicast/broadcast datagrams may be broken in 8.0-BETA2.

Although I haven't tested this myself since committing the SSM code 
around April, where I observed such traffic was correct.

thanks
BMS