DHCP Debugging

(2025-04-29)

Debug Fortigate as DHCP client:

diag debug reset
diag debug application dhcpc -1
diag debug enable

Debug DHCP activity as a server:

execute  dhcp lease-list
diag debug reset
diag debug application dhcps -1
diag debug enable

Turn it off:

diag debug reset
diag debug disable

(Source)