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Date: Wed, 9 Sep 2020 22:14:24 +0200
From: Linus =?utf-8?Q?L=C3=BCssing?= <linus.luessing@c0d3.blue>
Subject: Re: [PATCH maint v2 3/4] batman-adv: mcast: fix duplicate mcast
 packets in BLA backbone from mesh
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On Wed, Sep 09, 2020 at 04:53:57PM +0200, Linus L=C3=BCssing wrote:
> So the only solution I could think of for now is
> excluding DHCPv6 from multicast feature in TX of the originator...
> (in batadv_mcast_forw_mode_check_ipv6(), adding excludes for
> ff02::1:2 and ff05::1:3).

Ah, wait, we could distinguish them. Just noticed that the gateway
feature uses a unicast 4 address header, while the multicast
feature uses a simple, 3 address unicast header.

That should work. But might look a bit hacky. And would disallow
using a 4 address header from the multicast feature in the future.