New to FortiGate firewalls here and have a general grasp on networking,
so keep that in mind here haha. Below is sanitized info on the problem.
So we have a new 100F we are testing with, running 6.4.2. We have a
fairly simple network with an HP 5412z...
I checked the dedicated-to management section of the config and see that
the status is set to disabled currently. So for your suggestion, I'm
giving the Mgmt interface a VLAN 200 address (say, 192.168.200.10), but
plugging that into an untagged VLAN ...