LTP

Finally, if none of the other methods are acceptable, the following LTP method can be used:

• A new FortiGate device with a factory-default configuration is plugged in and powered on.

• A human operator connects to the FortiGate device, manually provides the FortiManager location, optionally applies any initial configuration necessary to reach FortiManager, and then triggers the FortiManager connection.

• The FortiGate device connects to FortiManager, authenticates using either its own serial number or a PSK provided by the operator, and triggers the Auto-Link process.

Note that this is the only method that supports authenticating the device using a PSK. Therefore, it is particularly useful when the authentication based on the serial number is not feasible (for example, when the serial number is not known in advance or when the Model Devices are created on FortiManager).