On Tue, Jan 20, 2004 at 06:22:11PM +0100, Jorge Ramon Acereda Maci? wrote:
> I want to have several NetBSD machines acting as access points. At the
> same time, those machines should be capable of monitoring the signal
> strength level of nearby devices, even those associated to other
> access point.
> 
> What I have done is a program that uses libpcap to put the interface
> in monitor mode and capture DLT_IEEE802_11_RADIO packets. With that, I
> can get samples of the signal strength, but only when the nearby
> devices are under activity (for instance, pinging the access point) or
> when the interface is in monitor mode.
> 
> If I could get the beacon frames in hostap mode, there would be no
> need to have activity in the nearby devices to actually measure the
> signal.

AP clients do not send beacons.

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933