how to use ebtables on 80211s mesh network

Hi, i am trying to configure a logical topology with ebtables on a
80211s mesh network.

Actually i use rules such as
ebtables -A OUTPUT -d <macaddress> -j DROP

when a node receive a 80211s message, checks ebtable rules, and
eventually drop unwanted packets.
All should remain at level-2, no ip rules wanted.

All seems working in a 3-nodes mesh.
i can set a linear topology A---B---C or B---A---C or full meshed
topology. (see mesh path with iw dev mesh mpath dump)
Adding more nodes return a mesh which do note reflects ebtables rules.

I know this sounds a bit confusing, hope some of you may give me help.

Thanks.

ps

kernel il 2.6.28.7, OSs are openwrt on some nodes, ubuntu linux on other.