by Tehk » Sun Dec 11, 2005 11:53 pm
Q4: Does your firewall or router support UPnP (Universal Plug and Play), and is it enabled?
A4:To host a game, the host should enable UPnP on their router or firewall.
It may also be useful (especially if the router does't support uPNP) to try starting uPNP (Universal Plug and Play) services on Windows XP. It's not nessary for everyone, and uPNP in XP is off by default. Ensure that the UPnP service is actually running on Windows XP, by going into the Control Panel -> Administrative Tools -> Services and scrolling down to Universal Plug and Play. Other services, such as SSDPRSRV, may also need to be started first (SSDPRSRV is on by default). Be sure to START the services, don't just click OK.
If your firewall or router does not support UPnP, you will need to open the following ports on your firewall/router for inbound traffic to the computer on which to wish to host the game (i.e. "port-forwarding"):
Port Protocol Destination
2302 UDP varies*
6500 UDP varies*
13139 UDP varies*
* This will be the IP of the computer you wish to host the game on. For more information on port-forwarding, see your router or firewall's manual, or visit their support website.
Note: See NOTE #1 and #2 below for additional information on UPnP and port-forwarding.
Many corporate and school firewalls perform 'egress filtering' which denies all outbound traffic unless specifically allowed, thus the above traffic must be explicitly allowed.
From website ds2 read me *Yoink*