CATV system, management device, cable modem and program

摘要

A cable modem of a CATV system includes an address monitoring unit and a proxy requesting unit. The address monitoring unit monitors an address of at least one set top box connected to the cable modem based on a content of transmission sent to the cable modem from the set top box. The proxy requesting unit requests for sending relevant information about the set top box to an address indicated by monitoring result of the address monitoring unit, when the proxy requesting unit is requested for sending the relevant information by at least one management device connected to the cable modem via a CATV network.