With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipCardLanAdaptAdminMacAddress
Cisco Channel Interface Processor Card Lan Adapt Admin Mac Address
1.3.6.1.4.1.9.9.34.1.1.2.1.2
The Adapter MAC Address is assigned by the router administrator. It is a unique number used by protocols to address this Adapter on the CMCC LAN identified by the second index (cipCardLanAdminLanId). NOTE: In order to have duplicate MAC Addresses, they must be on different Source Route Bridge LAN's.
Back to CISCO-CIPLAN-MIB MIB page.
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