Originally posted by Saurdaukar
Oh - so its really easy for him since its like... "internal" or something?
It's simple, yet complicated. There are free IP locators online, but you can only trace the IP back to it's gateway. For example, I live in Nahant, but if you use an IP locator it usually shows me as connecting from Cambridge, since that's the gateway I'm using. It's further complicated when you use dialup, since you can connect using multiple gateways. Then there's the whole proxy mess, with which I can use an IP that shows me anywhere in the world.
If you get a true IP, though, you can often tracert it to at least the general location it's coming from.