Management Of Fortigate Firewall Via The Out Of Band Management Port

[Omoyeleola]

I have challenge concerning the setup diagram provided below. In this diagram, VLAN 30 is designated as the out-of-band (OOB) management VLAN, with the corresponding OOB management network IP address being 192.168.30.0/24. Each device intended for management via the OOB network is connected to the management VLAN ports of the Forti-switch through their respective physical management ports, as illustrated in the diagram. My objective is to manage the Fortigate firewall B using its IP address, 192.168.30.10, which is configured on the physical management port. In pursuit of this objective, I attempted to configure the static route outlined below. However, I encountered an issue where the command SET DEVICE MGMT was not accepted, even after I had removed the management port from being designated as a dedicated port. Could you please advise on the most effective method to achieve my goal of managing the Fortigate firewall B through its management port?

config router static

edit 12

set dst 192.168.209.0/26

set gateway 192.168.30.1

set device mgmt