With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmiFaDeRegRepliesValidFromHA
Cisco Mobile IP Foreign Agent De Registration Replies Valid From HA
1.3.6.1.4.1.9.9.174.1.1.1.19
Total number of valid De-Registration Replies received from the home agent by the foreign agent.
Back to CISCO-MOBILE-IP-MIB MIB page.
IPHost Network monitor allows you to monitor cmiFaDeRegRepliesValidFromHA 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.