If you want to use the Westell 7500 Port Forwarding you must follow this guide 1.) Connect to the Router you can see a tutorial about this here - How to connect to Westell 7500

2.) Go to Firewall.

3.) Go to Port Forwarding

4.) A warning message will apear : 

Any changes made in this section may affect your device’s performance and configuration. 

Do you want to proceed?

Click YES

Westell 7500 Port Forwarding

5.) A port Forwarding screen will be displayed, The Port Forwarding screen allows you to edit:


.

- Edit connection profiles, create new connection profiles

- Configure port forwarding services: predefined, customized, and port forwarding/port triggering services