Hello I got a major issue with Airport extreme, and hope you guys can help. I'm using the newest Airport extreme with gigabit Ethernet as well as a MBP. My problem is that I am using ShakesPeer at the moment, and I can't connect to my university's local hub. Another program called Dtella is required, so in order for me to connect to my university's hub, I need Dtella to run in the background, while ShakesPeer is opened. --- ShakesPeer: Now here is the problem: Whenever I try to connect to the hub, I receive this msg: [10:13] <*Dtella> 1. Scanning For Online Nodes... [10:13] <*Dtella> *** UDP PORT FORWARD REQUIRED *** [10:13] <*Dtella> In order for Dtella to communicate properly, it needs to receive UDP traffic [10:13] <*Dtella> from the Internet. Dtella is currently listening on UDP port 3000, but the [10:13] <*Dtella> packets appear to be getting blocked, most likely by a firewall or a router. If [10:13] <*Dtella> this is the case, then you will have to configure your firewall or router to [10:13] <*Dtella> allow UDP traffic through on this port. You may tell Dtella to use a different [10:13] <*Dtella> port from now on by typing !UDP followed by a number. My ShakesPeer is running in Passive mode. Obviously, there is something wrong with the UDP. I manually set it to 3000 in ShakesPeer, so I probably need to do it the same with Airport Utility 5.2 --- Airport Utility 5.2 In Airport Utility, I found my base station, and went to the config menu. Then I went to the tab Advance > Port Mapping and did the following: I chose the Port Mapping selection and chose: Personal File Sharing then I did this: I renamed it and clicked UPDATE, and the base station restarted itself. Here are my additional info: Connect using: Ethernet Configure IPv4: Using DHCP IP Adress: XXX.211.XXX.XXX etc.... After doing this, it STILL doesn't work in ShakesPeer...I still receive the msg I posted above. Did I do something wrong? How do I set the Port mapping correctly for ShakesPeer? Appreciate your help and thanks for your time.