Fortinet FortiGate 1U Quick Start Manual page 61

On the FortiGate unit, perform an action to
trigger a trap (for example, change the IP
address of the DMZ interface).
Verify that the SNMP manager receives the
trap.
On the FortiGate unit, view log messages
showing the trap was sent by going to Log &
Report > Event Log > System.
Using SNMP to monitor the FortiGate unit 41