I assume you mean of a router? In which case, if you type ipconfig from your local computer, you will only get your lan address. If you go to one of those sites such as whatismyip.com, then itll give you your actual ip address as viewed by the internet. Or you could log into your router and find it out that way.
yeas cuz my friend does not no his password for the connection i wanna play ma psp in his house