This is a good topic.

AP management tools should be able to tell you which AP a client is
connected to but I do not think there are any AP management platforms
that can triangulate on clients (yet).  Finding the AP for a client is
also possible via the syslogs (we also have a web interface to a syslog
so we can easily track IPs and MACs to APs.)

Cisco's WLSE can triangulate on rogue APs with some success.  I assume
that Cisco might be able to add client triangulation via RF (we have
been asking for triangulation on non-AP interference). But this is the
type of feature that only makes it in if there are enough customer
requesting it. So all you Cisco sites... please call your SE and AM :-)

Without some form of triangulation (over time), manually finding a
client once you have the AP is very difficult. RF bounces and it can be
difficult to pinpoint any source especially if it's not chatty.

We started some testing with a portable spectrum analyser but that only
works for general RF, not from a specific client (at least not right
now). Our short term plan is to test Airmagnet handheld sw on iPaqs with
directional antennas, we just have to find a combination that works and
is highly portable (directional antennas don't seem to be compact).

If anyone has a good solution, let us know.

... Jonn Martell, wireless.ubc.ca

Date:    Mon, 5 Jan 2004 22:23:59 -0500
From:    Cal Frye <[EMAIL PROTECTED]>
Subject: Detecting clients.

looking for recommendations...

We just spent a couple of hours trying to locate a machine misconfigured
for interface bridging. The wireless interface was the bad boy, and all
the address we had. I walked around a while with Netstumbler, but only
found my access points, not the client I was looking for.

Does anyone know of a device or software package (perhaps for the iPaq)
that shows reliable signal strength and preferably MAC address at a
minimum for �LL 802.11 devices in the vicinity?

--
--Cal Frye, Network Administrator, Oberlin College
  www.ouuf.org, www.calfrye.com

"MCSE - Minesweeper Consultant and Solitaire Expert"

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End of WIRELESS-LAN Digest - 23 Dec 2003 to 5 Jan 2004 (#2004-1)
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