Network topology

The following diagram depicts the network topology that the FortiGate as a FortiSASE LAN extension configuration uses:

The FortiGate LAN extension feature is used in this topology where the FortiGate Connector is the on-premise FortiGate Secure Edge device and the FortiGate Controller is FortiSASE.

A new VDOM can be created on the FortiGate Connector and its type can be set to LAN extension. This configuration allows the VDOM to function as a FortiGate in LAN extension mode.