[Bridge] Hardware requirements for bridging wired+wireless together

[Nicolas de Pesloüan]

Umar Qureshey wrote:
> Hi,
>
> I have been trolling the 'net as well as the archives of this list for
> quite a while now.
>
> I am still unclear on the requirements for getting an Ethernet and
> Wireless interface to bridge together.
>
> Currently, I am working with an esoteric radio that only supports Ad-Hoc
> and Managed modes.  There seemingly is not support for WDS (Wireless
> Distribution System) on this radio.
>
> I have been trying to bridge my eth0 and wlan0 but it doesn't seem to
> work.  Currently, my commands to get the bridge up are:
>
> ifconfig eth0 0.0.0.0
> ifconfig wlan0 0.0.0.0
> brctl addbr br0
> brctl addif br0 eth0
> brctl setfd br0 1           #BusyBox version of brctl doesn't take 0 as
> a time parameter so I change it to 1 (sec)
> ifconfig br0 up
> wpa_supplicant -Dwext -iwlan0 -bbr0 -c/root/wpa_supplicant.conf

I think you forgot to add wlan0 to the bridge:

brctl addif br0 wlan0

	Nicolas.

> Then I try to run udhcpc (DHCP client) on the bridge hoping to get DHCP
> from the AP/router:
>
> # udhcpc -ibr0 -b
> udhcpc (v1.15.2) started
> Sending discover...
> Sending discover...
> Sending discover...
> No lease, forking to background
>
> What I'd like to inquire is that is WDS support in the firmware/hardware
> of the radio required to bridge eth0 and wlan0?
> Any other tips to get the above interfaces to successfully bridge
> together would be great.
>
> Thanks,
> Umar
>
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