With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwdsiMnState
cwdsi Mn State
1.3.6.1.4.1.9.9.509.1.3.1.1.8
This object specifies the registration state of the Mobile Node with WDS.
Back to CISCO-WDS-INFO-MIB MIB page.
IPHost Network monitor allows you to monitor cwdsiMnState on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.