With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fgVdTpMgmtAddr
fg Vd Tp Mgmt Address
1.3.6.1.4.1.12356.101.3.2.2.1.2
The management IP address of the virtual domain in transparent mode, typically an IPv4 address. The address type/format is determined by fgVdTpMgmtAddrType.
Back to FORTINET-FORTIGATE-MIB MIB page.
IPHost Network monitor allows you to monitor fgVdTpMgmtAddr on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet firewalls right now.