With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ctbrPhyAddress
ctbr Phy Address
1.3.6.1.4.1.9.9.269.1.1.1.1.2
The MAC address to be used by the interface. If ctbrDefaultPhyAddress is used, this is '00:00:00:00:00:00'.
Back to CISCO-TBRIDGE-DEV-IF-MIB MIB page.
IPHost Network monitor allows you to monitor ctbrPhyAddress 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.