The UPnP PortMapper is an easy to use program that manages the port mappings (port forwarding) of a UPnP enabled internet gateway device (router) in the local network. You can easily view, add and remove port mappings.
Using port forwarding, it is possible to access servers (SSH, Web, ...) running in a private network from the internet. Port mappings can be configured using the web administration interface of a router, but using the UPnP PortMapper is much more convenient: Just select a preset and click one button to add a port mapping for your current computer, the IP address is retrieved automatically!
UPnP PortMapper can be downloaded from http://sourceforge.net/project/platformdownload.php?group_id=213879 . You need Java SE Runtime Environment in Version 5.0 or later to run this program. Java can be downloaded from http://java.com/en/download . After installing Java simply double click on the JAR file or run "java -jar PortMapper.jar" on the command line.
Your feedback is most welcome at the tracker (http://sourceforge.net/tracker/?group_id=213879) or the forum (http://sourceforge.net/forum/?group_id=213879). The project home page is currently under development.