Re: dropped received packet with no ToDS flag?


From: Adam Megacz (adam_at_megacz.com)
Date: 2002-04-04 21:51:48 UTC


Jouni Malinen <jkmaline_at_cc.hut.fi> writes:
> Hmm.. Are you using power saving on the client WLAN cards?

wlan0     IEEE 802.11-DS  ESSID:"test"  
          Mode:Master  Frequency:2.427GHz  Access Point: 00:90:D1:07:1D:AD
          Bit Rate:2Mb/s   Tx-Power:-4 dBm   Sensitivity=1/3  
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Power Management:off
          ^^^^^^^^^^^^^^^^^^^^

I assume that means I am not, correct?

> > Also, about every 10 minutes or so the client will disassociate and
> > reassociate to the AP. Since reassociation is flaky, this means that
> > about every 10 minutes you have a 20% chance of falling off the
> > network. Not good =)

> Well, okay, this does not sound very nice.. I would like to get a
> packet dump from some of these associations for analysis. Could you
> record this, e.g., by running 3rd host in monitor mode (iwpriv wlan0
> monitor 1; wlansniff)?

Ur, that's going to be a challenge... I'll try your debug-enhanced driver first, and if that doesn't work I can scrounge around for another card/machine so I can do some sniffing.

> > Hrm, could you make a snapshot available? I'll try it out and see if
> > it solves my problem. I'll also try my DWL-500 in the
> > DWL-650... perhaps it's just my lame Addtron card that's causing
> > problems.

> I added some more debugging info to the driver and I'll send you a
> snapshot in another message.

Sweet, I'll let you know how it turns out.

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