Re: Passive Scanning Bugreport

Zhu Yi <[email protected]>
Newsgroups gmane.linux.drivers.ipw2100.devel
Organization Intel Corp.
Message-ID <[email protected]>
On Mon, 2006-07-31 at 16:42 +0200, Thomas King wrote:
> However, I 
> still have some problems while passively scanning the environment
> (even if 
> the dwell timer is set to 120 or 100). This time it looks like
> passive 
> scanning works only if my machine is associated with a specific access
> point 
> (called Doniluma). I know, it sounds very wired but I tried it with
> different 
> access points. Most access points (e.g. manufactured by Linksys,
> Netgear and 
> Dlink) do not work (see bugreport2_1.txt). Only if my machine is
> associated 
> with the Doniluma access point (manufactured by entrasys) passive
> scanning 
> works (see bugreport2_2.txt). 

I suppose this only happens when card was associated right? It doesn't
happen when it is not in the associate state (you can set an invalid
ssid to verify). This can be explained by in the associated state, the
STA is not able to be away from the currently associated channel without
any time limitation (otherwise it causes packets lost while it is in
other channels). Can you try to set the scan watchdog timer bigger
(something like 20*HZ) to test whether you can finally receive the scan
completed event or not?

BTW, what are the beacon interval and listen interval setting for these
APs?

Thanks,
-yi

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