Port forwarding
Port forwarding redirects traffic from the public interface, that is connected to the Internet, to a device on the private network. This technique is used to make remote devices on the Internet connect to a specific device within the private local-area network (LAN). This is done by setting aside one port number on the public interface for the exclusive use of communicating with a specific device (IP and port) on the private network.
The data-grid shows what port forwarding rules have been set up.
Buttons
Click Delete to delete an existing port forward rule.
Click New to create a new port forward rule. This will bring up a new window.
Click Edit to edit an existing port forward rule. This will bring up a new window.
Properties
From port: Is the port on the public interface that is connected to the Internet.
To port: Is the port on the device on the private network.
On local IP-address: Is the IP address of the device on the private network.
The image shows how to open the public port 8080 for HTTP traffic to a device with IP: 192.168.1.123 on the local network.