arp -a
show arp
plague
Yes. A router will de-capsulate an frame to verify it was destined for itself. Frames are layer 2.
show version
You should verify that your router was purchased at a Best Buy. Before you call, make sure to have all the information about the router and your network connection available, and they should be able to help you.
Telnet
.
No, it is not required that you verify Fallout 3 on the Internet, but you can register on Windows Live and get special achievements
show flash
winipcfg
show n ?
scan disk>??
debug ip nat