Before you begin
The device you are forwarding a port to needs to have a Static LAN IP. This can be assigned on the device, or within the routers UI (Local network tile > Add new static IP lease)
You will also need the ports that the game or application requires to be forwarded.
If you are using a MyRepublic Hub+ we'll include the instructions below. If you are using your own router, however, a great third party guide can be found at https://portforward.com/router.htm
Log into the routers UI
Select the WAN Services tile
Select Add New IPv4 port mapping
Enter the values as follows
Name: A name for your port forwarding rule, this is simply a reference
Protocol: Depending on the game, if you are unsure select TCP/UDP
WAN Port: The port defined by the game or application
LAN Port: The port defined by the game or application
Destination IP: The static LAN IP of the device
Click the tick to save, and the rule will be set up.
Repeat if the game or application used multiple ports