With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
docsSubmgt3FilterGrpDestMacMask
docs Submgt3 Filter Group Dest Mac Mask
An Ethernet packet matches an entry when its destination MAC address bitwise ANDed with the DestMacMask attribute equals the value of the DestMacAddr attribute.
Back to DOCS-SUBMGT3-MIB MIB page.
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