With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fnLSEventFilterGwConn
fn LS Event Filter Gw Connection
1.3.6.1.4.1.12356.9.1.14.2.10
Routing gateway connection event
Back to FORTINET-MIB MIB page.
IPHost Network monitor allows you to monitor fnLSEventFilterGwConn on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet switches right now.