DC++ FAQ

Universal Plug And Play (UPnP) is a technology to allow, among other things, Internet applications to configure home routers and gateways, bypassing manual port forwarding configuration. UPnP was introduced in Windows XP and is supported in that and later versions, including Windows Server 2003 and Vista. To take advantage of UPnP, you must have support enabled in Windows and UPnP capable hardware (typically a broadband router using NAT traversal). If you meet both of these requirements, setting up DC++ is normally a simple process. UPnP support introduced in DC++ 0.4033. For using DC++ with UPnP under Vista you need version 0.695 or newer.

To enable UPnP:

* Click on the File menu and then Settings. Click on Connection Settings.
* Select Firewall with UPnP.
* Restart DC++.

If your UPnP system is setup correctly, DC++ will now automatically create the required port mappings for DC++ to operate in Active Mode. It will also detect your external IP address and switch into Active Mode.