Create interface:

Interface - Add a new interface( GM )-The new interface protocol must be a static address - the interface is a wan interface on the router

The IP address is set to the address of the same network segment as the optical cat. For example: 192.168.100.251

Subnet mask: 255.255.255.0

Click Advanced:

Use gateway hops: one hundred

Firewall settings: wan group

Create a static route:

Interface selection created GM

Objectives: 192.168.100.0/24

Gateway selection: 192.168.100.251

Advanced Settings - Metric: 100