With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmauNetPrefixGroup
cmau Net Prefix Group
1.3.6.1.4.1.351.150.71.2.1.2
The collection of objects related to ATM address prefix.
Back to CISCO-MGX82XX-ATM-UNI-PORT-MIB MIB page.
IPHost Network monitor allows you to monitor cmauNetPrefixGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.