With IPHost Network Monitor you can run simple snmp requests against a Netscreen device in your network.
nsPlyDstAddr
NETSCREEN Ply Dst Address
1.3.6.1.4.1.3224.10.1.1.6
Addresses are objects that identify network devices such as hosts and networks by their location in relation to the firwall-on which security zone.To create an access policy for specific addresses, you must first create entries for the relevant hosts and networks in the address book.Source IP address indicates the address in destination zone, 0.0.0.0 means any address.
Back to NETSCREEN-POLICY-MIB MIB page.
IPHost Network monitor allows you to monitor nsPlyDstAddr 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.