With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdmsMediaPlayerAddrTakenEnable
Cisco Digital Media Management System Media Player Address Taken Enable
1.3.6.1.4.1.9.9.655.1.13.4
This object specifies the administrative state of sending the 'ciscoDmsMediaPlayerAddrTaken' notification to signal the fact that the IP address assigned to a managed digital media player has been acquired by another media player.
Back to CISCO-DIGITAL-MEDIA-SYSTEMS-MIB. MIB page.
IPHost Network monitor allows you to monitor cdmsMediaPlayerAddrTakenEnable 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.