A port forward is a way of making a computer on your home or business network accessible to computers on the internet, even though they are behind a router or firewall. It is commonly used in gaming, security cameras, home automation, and the Internet of Things (IoT).

In BirDog Cloud we use port forwarding when we set up a Caller --> Listener scenario. The listener side have to port forward the UDP port or ports needed for the connections. One pr SRT connection.

Port forwards are setup in your router. A forwarded port is also known as open. After you have forwarded a port you have an open port.

See this wiki for more information: https://en.wikipedia.org/wiki/Port_forwarding