Cisco was started in 1984 and has since become a multinational technology company. The name Cisco is derived from the city San Francisco. Cisco has become one of the leading router manufacturers worldwide.
Below are our port forwarding guides for the Cisco routers. They have a fairly simple user interface. If you don't see your exact router model listed below try finding one that seems similar. Most of the Cisco routers have a similar user interface and you should have no problem forwarding your ports.