With IPHost Network Monitor you can run simple snmp requests against a Netscreen device in your network.
nsServiceTable
NETSCREEN Service Table
1.3.6.1.4.1.3224.13.1
Services are types of IP traffic for which protocol standards exist. This table collects all the service configurations existig in NetScreen device.
Back to NETSCREEN-SERVICE-MIB MIB page.
IPHost Network monitor allows you to monitor nsServiceTable 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.