I asked on another list and one of the suggestions (besides Kismet, which I already found. :-)) was to use NMap....
...script Nmap using NSE to detect rogue APs - http://mail.pauldotcom.com/pipermail/pauldotcom/2010-March/004865.html -----Original Message----- From: Kurt Buff [mailto:kurt.b...@gmail.com] Sent: Monday, February 28, 2011 8:47 PM To: NT System Admin Issues Subject: Wifi monitoring All, Now that I have a Win7 Pro laptop of my very own at work, I have put some utilities on it to monitor my wifi environment. I've started with: InSSIDer Xirrus WifiMonitor gadget Ekahau Heatmapper I didn't put on PassMark's WirelessMon (it's only a 30-day eval, didn't want to be bothered with it.) I've also got the Android Wifi Analyzer app running on my phone. However, all of these are very limited, and are going to require lots of work to map my space, and to keep monitoring for rogue WAPs, etc. I'm aware of the Airtight, Cisco Clean Air, and several others, but I'm guessing they are way out of my price range, as their web sites all say "ask for a quote". Ideally, I'd like to find an app that I could use to poll my WAPs and use them to map my space to locate any other WAPs inside my building and their SSIDs - I'm thinking that triangulation via signal strength measurement at the various WAPs could create a useful map. For instance, I've found two SSIDs that are operating in ad hoc mode, and two that are operating in infrastructure mode, with relatively strong signals, but I simply don't have the time to walk around and do a survey, especially when the Ekahau free product will only do a 15 minute survey at a time. I've got 15 Cisco 1240AG units, so something that interoperates with them would be ideal. Anyone know of any relatively inexpensive (or even free) apps that might do this? Thanks, Kurt ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin