Belkin wireless g notebook card and telnet test port

Hello, I currently have a laptop computer with a belkin wirless g notebook card. (model no. f5d7010) In the advance diagnostic tools there is a feature that you are able to telnet. All what it ask for is basically enter the port no. and the ip or hostname so for the port no. I put 23 and the ip address I tried the belkin router no. and I also tried the ip no. of another computer on the network and nothing. Does anyone have some suggestions on how to get this to work. thank you