Template: apt-p2p/port_forward Type: note _Description: Port forwarding It is VERY important that Apt-P2P's ports be reachable by other peers. This is needed both to share files with others, and to connect to others through the DHT to find peers for files. If you aren't accessible by others, you will not only not share anything, but your performance during downloading will be affected. . Apt-P2P uses a default port of 9977, over both TCP and UDP, for it's communication. You can change this port in the /etc/apt-p2p/apt-p2p.conf file, and use different ports for TCP and UDP, if desired. Whatever port you use, make sure to forward it through your NAT or firewall to improve your performance and share with others. Information on port forwarding can be found here: . http://portforward.com/