If he's using Road Runner, all he'll need to do is reset his cable modem's connection (by cycling its power or disconnecting it from the coaxial cable) and it should automatically send the new MAC ...

I'm looking for a 4-6 port broadband router (needs to be a switch) that allows it's MAC address to be changed (so I don't need to call up my ISP). Basic firewalling a must (port forwarding and a ...