TCMPortMapper is an Obj-C/Cocoa NAT-Traversal framework that maps ports via UPNP and NAT-PMP.
Some times you want to access your computers at home from anywhere in the world. Be it the web server on your home server, the file sharing on your desktop machine or a remote login to your parent's computer to support them doing their work.
This is where the application "Port Map" might come handy. Originally written as a proof of concept for our framework, it's a fully featured all-purpose port mapper supporting all major routers, with presets and URL templates.