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From: Linus =?utf-8?Q?L=C3=BCssing?= <linus.luessing-djzkFPsfvsizQB+pC5nmwQ@public.gmane.org>
Subject: Re: Problem with bridge (mcast-to-ucast + hairpin) and Broadcom's
 802.11f in their FullMAC fw
Date: Mon, 12 Mar 2018 12:08:56 +0100
Message-ID: <20180312110856.GL2470@otheros>
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Cc: Felix Fietkau <nbd-Vt+b4OUoWG0@public.gmane.org>,
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On Tue, Feb 27, 2018 at 11:08:20AM +0100, Rafał Miłecki wrote:
> I've problem when using OpenWrt/LEDE on a home router with Broadcom's
> FullMAC WiFi chipset.

Hi Rafał,

Thanks for reporting this issue!

> Can you see any solution for this problem? Is that an option to stop
> multicast-to-unicast from touching 802.11f packets? Some other ideas?
> Obviously I can't modify Broadcom's firmware and drop that obsoleted
> standard.

Just to avoid some potential confusion: This is more an issue of
hairpinning than it is an issue of multicast-to-unicast per se,
right?

That is, if you set this to 0 manually:
/sys/class/net/<ap-iface>/brport/multicast_to_unicast
Then the issue still occurs, right?

Regards, Linus