Method for selecting and controlling connection with internet service provider

摘要

A method for selecting an Internet service provider (ISP) 12 using a dynamic host configuration protocol (DHCP) in a point-to-point protocol (PPP) system which adopts an asymmetric digital subscriber line (ADSL) 16 and a method for controlling connection with the selected ISP. According to the above methods, it is possible for a subscriber 10 to directly receive desired data from the selected ISP 12 and to control the points in time at which a connection with a selected ISP is opened and closed since the subscriber can directly select the ISP by providing the ID of the ISP desired by the subscriber using the option field of the DHCP message to an ADSL terminal unit-remote (ATU-R) 102 when a predetermined terminal such as a personal computer (PC) 104 is connected to the ADSL 16.