A method for access network pairing, between a domain master (DM) and an end-point (EP) for forming a G.hn domain between a G.hn access multiplexer and one of a plurality of G.hn access network terminals , each connected to the G.hn access multiplexer by a corresponding phone line of a bundle of cables, wherein the G.hn access multiplexer comprises a plurality of ports , each of these ports performs a function of a domain master out of which one is the domain master (DM) for the access network pairing, the method comprises: setting up domain name and unique seed value of the domain master (DM) (S202); setting up domain name of the end-point (EP) (S204); connecting wire between the G.hn access multiplexer and the G.hn access network terminal for the corresponding port of the G.hn access multiplexer to be opened (S210); activating the port to be opened functioning as the domain master (DM), which domain master (DM) sends a MAP-D frame including the unique seed value to the end-point (EP), and starting pairing; in the domain master (DM), inserting the unique seed value into MAP-D frames, and transmitting the MAP-D frames to the end-point (EP) (S230); in the end-point (EP), receiving the MAP-D frames and identifying the seed value of the strongest signal of MAP-D frame among received MAP-D frames (S240); in the end-point (EP) trying to link-up with the domain master (DM) by using the identified seed value (S250); in the domain master (DM), accepting registration request with the unique seed value of said domain master (DM) and starting to connect the link (S260); in the G.hn access multiplexer , identifying the MAC address of the linked-up end-point (EP), setting up the MAC address as a registered address into the domain master (DM), and automatically storing the MAC address into the domain master (DM) (S270); and in the G.hn access multiplexer , setting up the MAC addresses stored in the domain master (DM) during initializing process, and connecting the link only with the end-point (EP) having the stored MAC addresses (S280). setting up domain name and unique seed value of the domain master (DM) (S202); setting up domain name of the end-point (EP) (S204); connecting wire between the G.hn access multiplexer and the G.hn access network terminal for the corresponding port of the G.hn access multiplexer to be opened (S210); activating the port to be opened functioning as the domain master (DM), which domain master (DM) sends a MAP-D frame including the unique seed value to the end-point (EP), and starting pairing; in the domain master (DM), inserting the unique seed value into MAP-D frames, and transmitting the MAP-D frames to the end-point (EP) (S230); in the end-point (EP), receiving the MAP-D frames and identifying the seed value of the strongest signal of MAP-D frame among received MAP-D frames (S240); in the end-point (EP) trying to link-up with the domain master (DM) by using the identified seed value (S250); in the domain master (DM), accepting registration request with the unique seed value of said domain master (DM) and starting to connect the link (S260); in the G.hn access multiplexer , identifying the MAC address of the linked-up end-point (EP), setting up the MAC address as a registered address into the domain master (DM), and automatically storing the MAC address into the domain master (DM) (S270); and in the G.hn access multiplexer , setting up the MAC addresses stored in the domain master (DM) during initializing process, and connecting the link only with the end-point (EP) having the stored MAC addresses (S280). <EOS>