connecting to an XP box.

Okay, here's the setup. 2 computers (one suse, one windows xp) connected via a router to the internet connection I can ping the windows box fine, but I can't seem to connect to it using smbclient. If I try to use smbclient -L POMMYMOMMY, I get a "failed to connect" If I do it via the IP, it gives me a time out. I have a folder set up to share. Doing anything wrong here?