I'd suggest you head over to #linux.se at IRC.
server: irc.linux.se
channel name: #linux.se
or surf over to
www.linux.se if the above doesn't work. They're really helpful when it comes to networking with Linux. I used to hang around there a lot about a year ago.
Edit: I thought RedHat had a graphical options program where one could select package masquerading by just adding the necessary info... and I belive SuSe got that too. Not sure though, I usually like to edit files and configs in Linux by command prompts..
