With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpxNsLastFilter
Virtual Router Ipx Ns Last Filter
Last filter for Ipx. If specified this filter is applied after all other NetSentry filters applicable to the packet.
Back to Nortel-Magellan-Passport-IpxMIB MIB page.
IPHost Network monitor allows you to monitor vrIpxNsLastFilter on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel speech servers right now.