Hi everyone.... I was interested in limiting my home network to only a few specific mac addresses, but the ease of spoofing a mac address got me thinking... If I were to make a simple program that sends out a message/probe from each computer and expects a response from others on the network ----> PROVIDED that the probe/response routine was not predictable (at least easily) ---> couldn't that be a simple way to verify the MAC/IP is who you think it is, so that when you don't get the required response, the BAN hammer drops on that MAC for a period of time....
ASSUMING I can make a relatively unpredictable probe/response so it isn't easily faked, does this sound like a reasonable way to ensure no spoofed addresses on my network ?
Thanks for any comments!!
(P.S. At least I wasn't asking for ideas for a thesis, right? ;p)