How do you know the IP of someone in-game?

[Skinny-Dog]

You Can't Know The IP of Someone, Only Using This Command:

type /whois CN in game, and take a screenshot

CN (Client Number)
But You Need Admin Status For That Becuase in Admin show you full IP, but in normal status (without Admin), The Command Shows You The Ip but with a "x" at the final so Only Admin Can Show All The IP.