ethernet bridging not working

twsnnva · 01-27-2005, 12:40 AM

I'm trying to bridge my wireless network to the wired network through my linux box, but I can't add eth0 to the bridge.

Code:

#ifconfig ath0 0.0.0.0
#ifconfig eth0 0.0.0.0
#brctl addbr br0
#brctl addif br0 ath0
#brctl addif br0 eth0
Can't add eth0 to bridge br0: cannot assign requested address.

That's about it. Does anyone have bridging working, and can verify I'm doing this correctly?

Thomas

fr_laz · 01-27-2005, 11:11 AM

Hi

I'm using bridging just the way you do... it works fine, but both interfaces are wired ones.

I just read a bit of this : http://davidcoulson.net/writing/pcp/...nuxexpert.pdf,
there's a short part on wireless bridging.

They explain that a wireless interface drops packets which mac destination address is not the one of the interface. So a wireless interface cannot be part of a bridge, EXCEPT if the wireless interface is configured as an access-point (master option).

Maybe that's connected to your problem

twsnnva · 01-27-2005, 03:49 PM

fr_laz,
Actually the wireless card (ath0) can be successfully added to the bridge. It's the wired card (eth0) that is having the problem. I dropped a second network card in my box, which comes up as eth1 and successfully created a bridge, between it and the wireless nic, i'm fine with that. Also I am using(trying to use) the wireless nic in master mode. I still can't get the wireless network up. If I set both the windows laptop and the Linux system up in ad-hoc mode they connect and everything works great. I want to use hostap mode (master mode), so my Linux system can act as a WAP. When I set the card to master mode, windows detects the network during a scan, but will not connect to it. My windows laptop also detects two other wireless networks in the area, one of which it was able to connect to, so I'm thinking, I must have something setup wrong on the Linux side.

Thomas