This table contains information about CPE connects behind
cable modem. It will return IP address and IP address type
of each CPE connect to a CM.
It is not intended to walk the whole table. An application
would need to query this table based on the specific indices.
Otherwise, it will impact the CMTS performance due to the
huge size of this table.
The agent creates/destroys/modifies an entry whenever there
is a CPE connect to a cable modem or disconnect from a cable
modem.