With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmlrRuleResultSsn
Cisco Multi-layer Routing Rule Result Ssn
1.3.6.1.4.1.9.9.396.1.6.1.30
The subsytem number to be place in the message signal unit. This object only applies when the cmlrRuleResultType is set to 'ssn' value.
Back to CISCO-ITP-MLR-MIB MIB page.
IPHost Network monitor allows you to monitor cmlrRuleResultSsn 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.