I'm using a Trendnet router. Oddly there is no specific area entitled "Port Forwarding," but the Virtual Server does allocate which machine on the internal network is the server. Here's a link to an emulator of my router. Virtual Server is located under the "Access" option. http://www.trendnet.com/emulators/TEW-432BRP_B1/adv_virtual.html
I do have both the IP and MAC address for the Classic set as static numbers. I will play with the port settings a bit more today and see what I come up with.
Thanks!