reporting received signal strength to remote side
Wed Nov 19 06:09:01 PST 2003
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On Tuesday 18 November 2003 22:16, Jouni Malinen wrote:
> "Wireless Link Test" uses proprietary data frames (i.e., IEEE 802.11
> data with own LLC header (if I remember correctly)) for requesting and
> sending this signal information. Processing of these requests is
> implemented in firmware and the driver does not get any information
> about requests. However, I have not tried to send the request myself and
> what happens with the response.. You can use a wireless sniffer to see
> those frames, so it should be relatively easy to send identifical frame
> to test this. Of course, it would be even easier, if a specification of
> the used frame format were available.
> I remember some changes in the recent Prism2/2.5/3 firmware versions on
> this area and it might be possible to receive some of these frames by
> configuring the card in special mode (promiscuous?). I'm not sure
> whether this is required for receiving the replies, though.
> It has been a while since I last experimented with these frames, so I'm
> not sure if I remembered everything correctly.. Anyway, if you can
> easily make a sniffer log of some of the frames from Orinoco/Proxim AP
> (and replies from a STA), they could be useful for making some quick
Ok, this should be what you are looking for. I clipped out the frames I took
to be unrelated. If you need more I can send you the entire dump.
The SMC 63:67:33 is a linux client running hostap drivers.
The Lucent is of course the orinoco COR.
Thanks for looking into this, I would love to be able to use my linux laptop
to test links to access points and see both sides without relying on
proprietary orinoco to do it.
jason at SkyCon.net
jason at JeetKuneDoMaster.net
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