> How about tying down the MAC addresses to only allow devices you own* ?
> * That might not work, as if he`s had unhindered access for some time,
> he may have grabbed your MAC addresses, and be able to spoof them.
Further to my previous post, try an IP scanning program, like this...
http://www.angryziber.com/ipscan/
You can put some seperate DLL files in the program directory to give it
more capability, like accessing the remote machine by ftp / telnet, as
well as grabbing the MAC addresses.
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