Upnp Router to Use With Ichat And Other Programs



I am interested for a program that I can hook with ichat, where it will help the router I have open ports automatically when I need them with my level1 UPnP router.

I could not use the static routing of a port to an internal IP address or virtual hosts function of a router as I have 3 macs in the internal network and I do not know how to send every port to who.

Thanks in advance