I need to configure my Cisco 2600 router to allow outside (Internet) access to three devices inside my network. The devices are connected to a PC dedicated to the instruments to be monitored. I think I need to allow port forwarding, but I don't know much about Cisco router management. I only have one (real) static IP for my router, but I can assign an internal IP to all the devices, the PC, or whatever we need to do. I have no idea how to assign a port access while protecting the rest of my network and router. Can someone help by giving me a sample and also exactly where to insert it into the config script?