Removing ports from the LAN hardware switch interface
By default, LAN ports are grouped together into the LAN hardware switch interface. An internal hardware switch controller connects the ports, and the ports are part of the same broadcast domain.
On FortiGate models without dedicated FortiLink ports, such as port A and port B, you can remove two of the LAN ports from the LAN interface to be used in the FortiLink interface.
To remove ports:
- Go to Network > Interfaces, and double-click LAN interface to open it for editing.
- In the Interface Members box, remove two physical ports by clicking the X for each one.
The two ports with the highest numbers are often used, but any port can be used.
- Click OK at the bottom.
On the Interface page, the two ports are removed from the LAN interface, and the interfaces are displayed under the Physical Interface grouping.