With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
nhrpPurgePrefixLength
nhrp Purge Prefix Length
In the case of NHRP Purge Requests, this specifies the equivalence class of addresses which match the first 'Prefix Length' bit positions of the Client Protocol Address specified in the Client Information Entry (CIE).
Back to NHRP-MIB MIB page.
IPHost Network monitor allows you to monitor nhrpPurgePrefixLength on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
