About bridge

Martin Polak mpolak at gup.jku.at
Thu Mar 6 03:18:48 EST 2003

clair.hong wrote:
> Then, What can I do for testing brideing util?
> Please give a detail advise.
> I must test by installing another bridge utills (bridge-0.9.6) . 
> I will wait your answer. Thank you .
> ps. Do you know another open bridge source except bridge.sourceforge.net/bridge-utils? 

Sorry for being unclear.
To use 802.1d briging you need kernel 802.1d bridging support compiled 
in, AND bridge-utils from http://bridge.sourceforge.net/ .

Then you need to create a bridge interface by:

brctl addbr br0

and add the interfaces you want to bridge to the bridge interface:

brctl addif br0 eth0
brctl addif br0 eth1

next you have to disable the bridged interfaces by:

ifconfig eth0
ifconfig eth1

additionally you can assign an address to the bridge interface, if you
want your box to be reached over this interface (which is strictly 
against OSI-model because bridgeing is on ethernet level, which doesnt 
know about ip adresses, but it works an is useful).
After a few minutes of learning mode, the bridge will be up and working.

greets, Martin

The above can also be found in the README files of hostap-driver and 
various other howto's on the net :-)

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