With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
nhrpCacheNbmaAddrType
nhrp Cache Nbma Addr Type
The NBMA address type. The value of this object indicates how to interpret the values of nhrpCacheNbmaAddr and nhrpCacheNbmaSubaddr.
Back to NHRP-MIB MIB page.
IPHost Network monitor allows you to monitor nhrpCacheNbmaAddrType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.