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 a common name in the router world. Cisco has become one of the leading router manufacturers worldwide.
Below are our port forwarding guides for the Cisco routers. They have a fairly simply 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.