With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dot1agCfmMepTransmitLtmTargetMacAddress
dot1ag Cfm Mep Transmit Ltm Target Mac Address
The Target MAC Address Field to be transmitted: A unicast destination MAC address. This address will be used if the value of the column dot1agCfmMepTransmitLtmTargetIsMepId is 'false'. REFERENCE 12.14.7.4.2:c
Back to IEEE8021-CFM-MIB MIB page.
IPHost Network monitor allows you to monitor dot1agCfmMepTransmitLtmTargetMacAddress 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.