HA Reserved Mgmt Interface for FortiGuards, Syslog, SNMP, etc

New Firewalls HA Setup with Reserved Management Interface

- I have a FortiGate400F internal firewall(not directly connected to internet) with HA A/P mode and three VDOMs.(root, vdomA and vdomB)

- I use my OOB mgmt interface as reserved mgmt in order to monitor both the primary and secondary firewall

FW1 mgmt IP : 192.168.1.1/24 (port 'mgmt)

FW2 mgmt IP : 192.168.1.2/24 (port 'mgmt)

- I also want OOB mgmt interface to use for other services such as SNMP, Syslog.

- Therefore, I have config 'ha-direct enable' so that the Syslog and SNMP traffic is passing through via that OOB mgmt interface.

- However, after reserved interface config, FortiGate is unable to reach to FortiGuards services due to no routing via reserved mgmt interface.

- i want the mgmt interface handle all the things (mgmt, FortiGuards, License, SNMP, Syslog, RADIUS, etc)

How can I archive this setup or what will be the best approach to meet my requirements.

thank you.