With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
docsDevCpeInetAddr
DOCSIS Device Cpe Inet Address
1.3.6.1.2.1.69.1.7.4.1.2
The Internet address to which this entry applies. Implementors need to be aware that if the size of docsDevCpeInetAddr exceeds 114 octets OIDs of instances of columns in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3. Only unicast address are allowed for this object.
Back to DOCS-CABLE-DEVICE-MIB MIB page.
IPHost Network monitor allows you to monitor docsDevCpeInetAddr on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.