A big upside with OVPN is that you can forward ports while you are connected. By opening a port you can run a web server as an example on your device even though you are connected to OVPN.
Opening a port is also known as port forwarding.
When you open a port you can decide if it should be TCP, UDP, or TCP and UDP.
After you have opened a port you need to reconnect to OVPN for the port to be opened. If you do not reconnect the port will remain closed for that connection.
Currently, we have a limit of 7 ports per account. This limit may be increased or decreased in the future.