Re: [Bluez-devel] PAN and bridge problem when bnep0 disconnects before bnep1

[Matthias Thomae <bluez@thomae-privat.de>]

Hi Christoph,

Christoph Scholz wrote:
> I experienced the same problem as Matthias Thomae. I already posted this

Glad there's others with the same problem ;)

> to the mailing-list some time ago (see attached mail). It is actually a

Missed your mail although I searched the archives...

> problem with the Linux bridge code. It does not seem to be able to cope
> with multiple interfaces using the same MAC-Address.

Aha. These MAC addresses seem to be used in the forwarding database. 
Maybe setting the ageing time to 0 (man brctl) would help...

> Unfortunately, I have no real solution to the problem.

What kernel version are you using (on the GN)? I noticed in the 
changelog for 2.6.6 there were a number of bridge-related changes, e.g.:

<shemminger@osdl.org>
	[BRIDGE]: Forwarding database changes.
	
	Make forwarding database more robust.
	  + Don't insert invalid ether address,
	  + Report errors back so adding an interface to bridge can fail
	  + get rid of unneeded explicit pads in data structure
	  + replace bitfields with byte's for simple booleans.

Maybe that fixes our problem? I might be able to try 2.6.6 and the 
ageing timer tonight...

BTW, have you written to the bridge people?

Regards.
Matthias


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