Subject: Re: [802.11] Enabling beacon frames reception in hostap mode
To: None <>
From: David Young <>
List: tech-net
Date: 01/20/2004 13:14:58
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.


David Young             OJC Technologies      Urbana, IL * (217) 278-3933