A user can enable the Port forwarding feature in his Linksys router to forward the traffic from the Internet to a specific port or a specific device on your local network. A user can either perform the single port forwarding or can perform multiple port forwarding. A single port forwarding inbound the traffic from the Internet only to a single device. Some applications require the forwarding of multiple ports in the network. You can perform any of the Port forwardings through the linksyssmartwifi.com management window.