With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
lecAtmAddressStatus
Lan Emulation Client Atm Address Status
1.3.6.1.4.1.353.5.3.1.1.6.1.2
Used to create and delete rows in this table. A management station may not change the status of a primary ATM address to 'notInService' or 'destroy' unless the client's ifAdminStatus is 'down', and the client's lecInterfaceState is 'initialState'. Secondary ATM addresses may be destroyed at any time permitted by the agent.
Back to LAN-EMULATION-CLIENT-MIB MIB page.
IPHost Network monitor allows you to monitor lecAtmAddressStatus 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.