Quote:
Originally Posted by wodin
IP addresses are assigned by the DHCP appliance at the ISP based on the MAC address of the modem. There is nothing preventing me from buying a cable modem from Best Buy, spoofing someone else’s MAC, and plugging it in to the cable network thus getting an IP that’s logged as whoever has that MAC. The only restriction is that the legitimate modem can’t be on line at the same time, but how many people stay on line 24/7? And I can tell if you’re on line with nothing more than a cell phone.
The IP address of a perpetrator is NOT evidence!
That, by the way is the reason for the Enhanced 911 system, There is no way guarantee the location of a VOIP telephone, since it is connected to a routable network.
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Interesting. Forgive my ignorance on some of this, but for my home Internet connection I have a wired connection between my wireless router/modem. Then for the wireless devices I use in my home to make Internet connection the proper password must be entered and as well as the router is set up to allow connection only from the list of MAC addresses that correspond to the cards in my devices. I do leave my modem/router on all the time and so connected to the Internet. So to make unauthorized use of my connection someone would have to be within range of my modem, crack my password, and spoof one of the MAC addresses of my devices? Or is it worse than that?