With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmlrAddressResultSsn
Cisco Multi-layer Routing Address Result Ssn
1.3.6.1.4.1.9.9.396.1.4.1.14
The subsystem number to be place in the message signal unit. This object only applies when the cmlrAddressResultType is set to 'ssn' value.
Back to CISCO-ITP-MLR-MIB MIB page.
IPHost Network monitor allows you to monitor cmlrAddressResultSsn 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.