Hi again everyone. I'm quite happy my question lighted up a few discussions related to wireless technology and I thought adding a few details to what I meant could also help people to better help me ;)
When submitting my post, I first thought about Wellenreiter (available at http://www.remote-exploit.org). This program uses the data from a GPS and a wireless card to be able to detect wireless networks. Now, I'm not a wireless experts so I don't know exactly what kind of antenna would be the best. I talked about that with my father, who's quite experienced and he told me using a directionnal antenna with a rotor could do the job. I thought about that again and asked myself if I could do the same thing for intruders and that's where it leaded me to. Some people said Netstumbler could do the job. But how does that work? Does it work the same way Wellenreiter do? If you want to add any comments/experience notes/etc please do so ; I am really interested to know more about wireless technology as I am trying to find some cheap D-Link DWL-500 cards to modify them to add external antennas. And, some users also talked about WEP and said that it could easily be cracked ; I would probably get around that by using IPSec, which looks to me as the best choice. Thanks again for all your posts so far :) -- David Laganière Network/System Administrator www: http://www.securinet.qc.ca/ email: [EMAIL PROTECTED]