IP address in yahoo messenger

how do I determine the IP address of someone using yahoo messenger?

ask them.

Send them a link to a host you control then look at the logs.

>>2
>>3
yes, but I can even do both of those without yahoo.

But (I've never used the yahoo before (and probably never will), is there some sort of control panel WITHIN yahoo's chat program that shows the IP addresses that are connected in a P2P chat or for FTPs or whatever or will I have to use a seperate IP trace.

directly connect; have then send you a file and check your netstat while they are sending

>>5

OK thanks, but wouldn't netstat work even without a file transfer

>>6

No, because you're connected to Yahoo's messenger server, not the other person.