With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceImageInstallableIndex
Cisco Enhanced Image Installable Index
1.3.6.1.4.1.9.9.249.1.2.2.1.1
An integer that uniquely identifies an installable. It is allocated by the system and is unique per an installable entry.
Back to CISCO-ENHANCED-IMAGE-MIB MIB page.
IPHost Network monitor allows you to monitor ceImageInstallableIndex 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.