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Date: Fri, 20 Jun 2014 15:58:50 +0200
From: Ilario Gelmetti <ilario.gelmetti@sns.it>
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Subject: [B.A.T.M.A.N.] Bridge changing source mac address prevents
	batman-adv from connecting
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Hi all!
I'm using batman-adv (2014.2.0) on two devices running OpenWrt
(LibreMesh) connected using a third device running a proprietary
firmware in bridge mode (AirOS), this is the topology:
http://i.imgur.com/ELMi5RC.png

mac3E80 OpenWrt batman----cable----macE3E7 AirOS station----wireless--
--macE434 AP OpenWrt batman

using tcpdump on the OpenWrt devices I can see batman packets flowing:
on mac3E80 I can see:
http://sprunge.us/iePM
while on macE434 I can see:
http://sprunge.us/DIAX
as you can see the problem is that macE434 sees packets from mac3E80
*approaching with the wrong mac address*, the mac address of macE3E7 so
I think it discards the packages when source mac address is different
from mac address specified inside the packet.
Is this only a security check?
How could I get things work?
Thanks,
Ilario


--=20
Ilario Gelmetti
iochesonome@gmail.com
ilario.gelmetti@sns.it


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