Subject: Re: another ath(4) patch
To: Steven M. Bellovin <>
From: Perry E. Metzger <>
List: current-users
Date: 10/26/2005 22:36:01
"Steven M. Bellovin" <> writes:
>>>>Never mind the recovery time difference between DOWN and UP, look at
>>>>the pattern where they go down.  They are remarkably aligned, 3 hours
>>>>and 4-5 seconds apart. =20
>>>>Figure out what happens at that interval, and you have your cause.
>>> What is the dhcp lease rebind time?
>>I hard code the address on that network.
> Hmm -- anything going on on the server end?

The base station is a standard commercial base station. The machine
isn't doing anything particularly odd.

>>BTW, I tried using the device a bit today at Columbia University --
>>very bad performance. The device keeps pathologically scanning from
>>one modulation mode to another very rapidly.
> And I had no problem on campus today -- I couldn't get a single twitch 
> from 80211watch; it locked in immediately and stayed there.

Try in Avery library instead. You need to be able to hear several
access points before the thing goes nuts.

Perry E. Metzger