Configuring the Digi ConnectPort WAN for Port Forwarding

Log into the ConnectPort’s web interface.
Browse to Configuration --> Network --> IP Forwarding Settings:

Digi ConnectPort WAN port forwarding configuration

Ensure that the option to Enable IP Routing (Forwarding) is ticked.

Tick the option to Enable Network Address Translation (NAT) and select mobile(0) as the public interface.

Add a new rule completing the protocol, port and internal IP address fields as required.
Once the rule has been added, click the Apply button.