Date: Wed, 14 Jul 2010 09:50:37 +0200
From: Simon Richter <Simon.Richter@hogyros.de>
To: Michael =?iso-8859-1?Q?B=FCsch?= <mb@bu3sch.de>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
	Ben Hutchings <ben@decadent.org.uk>,
	Stefano Brivio <stefano.brivio@polimi.it>,
	linux-wireless@vger.kernel.org, 588196@bugs.debian.org
Subject: Re: Bug#588196: b43: does not join multicast groups
Message-ID: <20100714075037.GA6128@richter>
References: <20100706021937.11147.78230.reportbug@debian.hogyros.de>
 <1278887148.6139.91.camel@localhost>
 <4C3A4C6E.6060801@lwfinger.net>
 <20100713051430.GA2625@honey.hogyros.de>
 <4C3BFB87.5030907@lwfinger.net>
 <20100713073751.GB3089@richter>
 <4C3C6350.50304@bu3sch.de>
 <20100713130614.GB25565@richter>
 <4C3C7296.3070700@bu3sch.de>
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In-Reply-To: <4C3C7296.3070700@bu3sch.de>
Sender: linux-wireless-owner@vger.kernel.org

Hi,

On Tue, Jul 13, 2010 at 04:05:10PM +0200, Michael B?sch wrote:

> So it is up to the upper layer to detect the failure. I don't think
> it's possible to automatically detect such incidents for multicast
> transmissions. So the mechanism fails here.

Well, it is about *receiving* a multicast transmission (IPv6 router
advertisement, sent to 33:33:00:00:00:01). I have no idea where the
packet is dropped; from my somewhat limited understanding of 802.11, I'd
expect the frames to be treated like broadcast frames by the AP, so it'd
be the receiver dropping them in the MAC filter.

   Simon