Re: Problem with bridge (mcast-to-ucast + hairpin) and Broadcom's 802.11f in their FullMAC fw

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