[OpenWrt-Devel] [PATCHv3 openwrt 1/2] Revert "kernel: disable multicast-to-unicast translation for ipv6 neighbor solicitation (#17625)"

[Linus Lüssing]

On Mon, Aug 31, 2015 at 12:19:44PM +0200, Linus Lüssing wrote:
> I had somehow expected that mac80211 would exclude it. But looks like it
> doesn't.

Looks like mac80211 on an STA does that for frames with a
multicast destination (to prevent getting the own multicast
packets echo'd back once the AP rebroadcasts them, I guess). E.g.
ap-isolation + bridge-hairpin without multicast-to-unicast works
fine. So maybe the simple fix for the multicast-to-unicast patch
is sufficient.

The unicast-to-multicast patch mangled the destination to a
unicast one and mac80211 does not seem to consider their source
address.

Going to make and try a patch for the bridge now.

Cheers, Linus
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