Bridging wlan0/wlan1

Jacques Caron Jacques.Caron at IPsector.com
Mon Feb 24 12:36:25 EST 2003


Hi,

Just create the WDS link on wlan1 instead of wlan1... And don't forget to 
create the WDS link on the other AP too...

Jacques.

At 18:31 24/02/2003, Dave wrote:

>I haven't tried your suggestion yet....but I see what you are getting at.
>Using WDS wouldn't solve what I am trying to accomplish I don't believe,
>because the radio on wlan0 will be performing two duties...receive from STA
>and transmit down WDS which appears to be cutting the bandwidth in half. I
>was trying to bridge the two radios so that when wlan0 is doing receive from
>STA it is passing the packets to wlan1 for transmit to the other remote AP.
>
>I noted Jacques reply and sort of understand that I cannot bridge across the
>radios like I was thinking.
>
>I am wondering ( and I will give it a try ), since you can bridge wlan0 to
>an eth0 and that works, could I bridge wlan0 to eth0 in br0, then bridge
>wlan1 to eth1 in br1, then bridge br0 and br1 together...or instead of using
>eth0 and eth1 use a dummy interface maybe?
>
>Anyway...when I have used WDS links in the past, I see the maximum bandwidth
>at about 300Kbps however when using wlan0 bridged to an ethernet interface I
>can see around 600Kbps or so. Is this normal operation?
>
>
>
>Thanks!
>
>-Dave
>
>
>
>
>
> > Remove ur configns and do these:
> > (I assume ur wireless interface is -- wlan0)
> >
> > # iwpriv wlan0 wds_add <MAC Addrs of the OTHER AP in DS>
> > # brctl addbr BRDG
> > # brctl addif BRDG wlan0
> > # brctl addif BRDG wlan0wds0
> > # ifconfig wlan0     0.0.0.0 up
> > # ifconfig wlan0wds0     0.0.0.0 up
> > # ifconfig BRDG <ip-address>  up
> >
> > let me know the results.
> > -Peyush.
> >
> > Dave wrote:
> >
> > > That doesn't seem to work either...maybe I am doing something wrong..
> > >
> > > # ifconfig wlan1 192.168.10.39 up
> > >
> > > # ping 192.168.10.10 (gateway)
> > > PING 192.168.10.10 (192.168.10.10) 56(84) bytes of data.
> > > 64 bytes from 192.168.10.10: icmp_seq=1 ttl=255 time=8.12 ms
> > > 64 bytes from 192.168.10.10: icmp_seq=2 ttl=255 time=4.33 ms
> > >
> > > #ifconfig wlan0 0.0.0.0 up
> > > #ifconfig wlan1 0.0.0.0 up
> > > #brctl addbr br0
> > > #brctl addif br0 wlan0
> > > #brctl addif br0 wlan1
> > > #ifconfig br0 192.168.10.39 up
> > >
> > > ping 192.168.10.10 (gateway) from box associated with wlan0 and get
> > > timeout....
> > >
> > > -Dave
> > >
> > > > linux bridging code does the brdg. between master & managed mode.
> > > > provide an ip addr (NOT 0.0.0.0) to the bridge u've created and make
>it
> > > 'up'.
> > > >
> > > >
> > > > Dave wrote:
> > > >
> > > > > Hi all,
> > > > >
> > > > > Can anyone confirm my findings that the Linux bridging code cannot
> > > bridge a
> > > > > wlan0 (Master mode) with a wlan1 (Managed mode) ?
> > > > >
> > > > > I guess I had assumed that it would work and apparently it does not.
> > > > >
> > > > > My hopes was to take the load off of the distribution radio (wlan0)
>so
> > > it is
> > > > > not sending data down a WDS link, but rather bridging it to a second
> > > radio
> > > > > (wlan1) running in managed mode to a remote hostap box.
> > > > >
> > > > > I brought up wlan0 in master mode, channel 1, essid test and brought
>up
> > > > > wlan1 in managed mode, channel 11, essid test2. Prior to placing
>both in
> > > a
> > > > > bridge I attached an IP address to wlan1 and made sure I was
>associated
> > > with
> > > > > the remote hostap box and could move traffic to/from. I then set
>wlan0
> > > and
> > > > > wlan1 to 0.0.0.0 up and created a bridge (br0) and added wlan0/wlan1
>and
> > > did
> > > > > a ifconfig br0 0.0.0.0 up to get it rolling.
> > > > >
> > > > > An STA associated with wlan0 but cannot move data through the box to
>hit
> > > the
> > > > > remote hostap box.
> > > > >
> > > > > Anyone have any ideas?
> > > > >
> > > > > Thanks!
> > > > >
> > > > > -Dave
> > > > >
> > > > > _______________________________________________
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> > > >
> > > > --
> > > > ______________________________________________________________
> > > > Peyush Agarwal
> > > > Sr. Engineer, Networking and Communications, Tata Elxsi Ltd.
> > > > Phone number :: 91-80-8410220/1/2 ex. 236.  Fax ::  91-80-8410219.
> > > > www.tataelxsi.com
> > > > ______________________________________________________________
> > > >
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> >
> > --
> > ______________________________________________________________
> > Peyush Agarwal
> > Sr. Engineer, Networking and Communications, Tata Elxsi Ltd.
> > Phone number :: 91-80-8410220/1/2 ex. 236.  Fax ::  91-80-8410219.
> > www.tataelxsi.com
> > ______________________________________________________________
> >
> >
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> >
>
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-- Jacques Caron, IP Sector Technologies
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