FortiOS 5.2 – notes from the field. How to Enable Advanced DHCP.

I have been moving from a bunch of Fortinet devices running 4.0 MR3 to 5.2 and have run into some issue. Below are some coming configuration issues and how to get around them.

In version 4.0, advanced DHCP options were enabled by default in the GUI. With 5.x, you need to enable them from the CLI.

config system global

set gui-dhcp-advanced enable

end

Also, DHCP config has moved from System -> Network -> DHCP to under the Network Interface. For example, to setup DHCP for the LAN, go to System -> Interfaces and select the LAN interface and choose “Edit”.   Scroll down to the DHCP Server section and check “Enable”.