With IPHost Network Monitor you can run simple snmp requests against a Netscreen device in your network.
nsSetGenOpMode
NETSCREEN Set Gen Operation Mode
1.3.6.1.4.1.3224.7.1.4
NetScreen device can work in one of the tree mode: transparent, NAT and route. This attribute indecates which operation mode it use.
Back to NETSCREEN-SET-GEN-MIB MIB page.
IPHost Network monitor allows you to monitor nsSetGenOpMode on Netscreen device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Netscreen VPN routers right now.