-----Original Message----- From: Stephen Hemminger [mailto:shemminger@xxxxxxxxxxxxxxxxxxxx] Sent: Tuesday, May 18, 2010 4:51 PM To: Umar Qureshey Cc: Nicolas de Pesloüan; bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx Subject: Re: Hardware requirements for bridging wired+wireless together On Tue, 18 May 2010 16:38:54 -0700 "Umar Qureshey" <umar.qureshey@xxxxxxxxxxxxx> wrote: > -----Original Message----- > From: Nicolas de Pesloüan [mailto:nicolas.2p.debian@xxxxxxx] > Sent: Tuesday, May 18, 2010 12:32 PM > To: Umar Qureshey > Cc: bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx > Subject: Re: Hardware requirements for bridging wired+wireless together > > 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 > > > >I believe bridging in station mode won't work (usually). > > >Recent kernels even reject the attempt. > > >There are exceptions with some devices and if the stack supports WDS > > > (which Linux wireless doesn't yet). > > >There are some cases like VMware that appear to do MAC level NAT > > > (ie replace Ethernet address), but the regular kernel doesn't support that. What about bridging in Ad-Hoc mode? Would that technically work? I guess what I am trying to figure out is why bridging would work in WDS mode? What is it about that mode that allows bridging to work? If one were to try to modify the kernel code to allow MAC-level NAT, which area of the kernel code would one look at? ********************************************************************** This e-mail is the property of Lantronix. It is intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential, or otherwise protected from disclosure. Distribution or copying of this e-mail, or the information contained herein, to anyone other than the intended recipient is prohibited. _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
