With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fnSysConfigTimeNTPSrv
fn Sys Config Time NTP Srv
1.3.6.1.4.1.12356.1.4.1.4
NTP server IP addr
Back to FORTINET-MIB MIB page.
IPHost Network monitor allows you to monitor fnSysConfigTimeNTPSrv on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet WAN extenders right now.