Re: IEEE 802.11 Breezecom rouming

Mircea Ciocan (mirceac@interplus.ro)
Wed, 27 Jan 1999 01:48:14 +0200

The BAD news is that with your setup you can NOT have roaming
capabilities, because for roaming you must have the AP0 and AP1 coverage
area overlapped with the same ESSID and diferent hopping sequence and
the SA0 will associate with the closest AP and only if you can isolate
somehow the SA0 input from AP0 frames by using VERY directional antena
so the SA0 will associate ONLY with AP1 this setup will work. We tryed
that but because of area overlaping and reflections it was not reliable,
somehow the SA0 will allways associate with AP0 after some time and
goodbye link between cells :(. So we take the safe road and use an extra
AP for the link, giving him and SA different ESSID and HOPS, like the
book said ;). This works perfectly AND gives you the seamingless roaming
for those nice users ;)

HTH Mircea C.

P.S. I use this beasts for about 2 yrs, from the first models that
appeared before the standard was finshed. So if have a need for help I'm
available for a short contract relocation ;).

"Georg P. Israel" wrote:
>
> Has anybody tried to set up a wireless bridge that supports roaming with Linux?
>
> I have a small WLAN with Breezecom PRO.11 wireless AP and SA.
> What I'm looking for is a setup that looks a bit like this:
>
> \ | / \ | /
> +-------+ +------+ / +-------+
> | AP 0 | +--+ SA 0 | - | AP 1 |
> +---+---+ | +------+ \ +---+---+
> | | |
> | +--------------+ | |
> | | Linux Box | | |
> +---+ eth0 eth1 +--+ +--->
> +--------------+
>
> Here, the SA0 together with the Linux Box should act like a wireless bridge.
> I could use the LBox as a router with static path, that will definitively work.
> But that way I don't have any roaming capabilities.
> Hence, I'm wondering if anybody has tried this.
>
> Looking forward to get some input.
>
> Georg Israel
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