With IPHost Network Monitor you can run simple snmp requests against a Netscreen device in your network.
nsZoneCfgId
NETSCREEN Zone Configure Id
1.3.6.1.4.1.3224.8.1.1.1.1
A unique value for zone table. Its value ranges between 1 and 65535 and may not be contigous. the index has no other meaning but a pure index
Back to NETSCREEN-ZONE-MIB MIB page.
IPHost Network monitor allows you to monitor nsZoneCfgId on Netscreen device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Netscreen firewalls right now.