A home gateway transmits data on the Internet to a plurality of customer premise equipments (CPEs) via a cable modem termination system (CMTS) which connect a plurality of other home gateways. The home gateway distributes a plurality of tuners to the plurality of CPEs according to request packets sent by the plurality of CPEs. The home gateway transmits broadcast packets to the other home gateways to inquire whether one of the other home gateways has an unoccupied tuner or not upon the condition that there are no unoccupied tuners of the home gateway, receives data from the Internet via the unoccupied tuner, and transmits the data to one of the CPEs not distributed the tuner.