With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceImageFamily
Cisco Enhanced Image Family
1.3.6.1.4.1.9.9.249.1.1.1.1.3
Family of the running OS image. The image family indicates the platform for which the image is built. Examples of image families - are C3640, C7200 etc.
Back to CISCO-ENHANCED-IMAGE-MIB MIB page.
IPHost Network monitor allows you to monitor ceImageFamily 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.
