With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdxCpeToCmEntry
Cisco DOCSIS Cpe To Cable Modem Entry
1.3.6.1.4.1.9.9.116.1.3.9.1
An entry in cdxCpeToCmTable. Each entry contains information on the MAC address, IP Address, and status index for the cable modem with a specific CPE connects to. Each entry is created if there is any cable modem with CPE connects to. Entries are ordered by cdxCpeToCmCpeMacAddress.
Back to CISCO-DOCS-EXT-MIB MIB page.
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