With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmiHaRegMnIdType
Cisco Mobile IP Ha Registration Mn Id Type
1.3.6.1.4.1.9.9.174.1.2.1.3.1.1
The type of the mobile node's identifier.
Back to CISCO-MOBILE-IP-MIB MIB page.
IPHost Network monitor allows you to monitor cmiHaRegMnIdType 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.