FortiOS 5.6 - SSL Inspection Settings Greyed Out
I've got a 60D running 5.6. I'm trying to enable some simple IPS rules like RDP brute force, FTP brute force, etc. Enabling the IPS on a policy requires adding SSL Inspection to the same policy. While I don't mind cert inspection, I don't want to do deep inspection. Granted, I'm not routing traffic through a MITM proxy on the Fortigate, all of the "deep-inspection" settings are on but entirely greyed out. I can't for the life of me figure out how do adjust any of these settings.
Any advice? Image attached.