With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mnCurrentHA
mn Current HA
1.3.6.1.2.1.44.1.3.1.3.1.2
Whether this home agent is the current home agent for the mobile node. If it is true, the mobile node is registered with that home agent.
Back to MIP-MIB MIB page.
IPHost Network monitor allows you to monitor mnCurrentHA on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.