Folks:

Sorry to post this question here, but I need to ask some people who actually know what they're doing. I print to a USB printer attached to an Airport Extreme wireless router using Rendezvous. Well, here's where I need you folks: Everything works fine until I activate a firewall at en1 (my Airport). All incoming traffic is blocked accept 192 (Access to the Airport Extreme), 515 (LPR and LPD), 517 (Rendezvous), 631 (IPP), 659 (URL Rendezvous), and 3689 (iTunes Music Sharing). All outgoing traffic is open except TCP:3000-3999 and UDP:2222. There is something that gets blocked with the firewall up, but it alright when its inactive. I've been reading over port listings and using netstat. Anyone have an idea what I'm doing wrong here?

--Tso