Abstract: A switch 1 having a tag VLAN function includes a plurality of physical ports P1, P2 . . . , and adds an ID tag unique to each physical port to the header of a packet received by the physical port and sends the packet, and on the other hand, refers to an ID tag attached to a packet received from a GW 2 and sends the packet to a physical port corresponding to the ID tag. The GW 2 searches for a server address corresponding to the ID tag attached to the packet received from the switch 1 and modifies a destination address of the packet into the server address. In addition, the GW 2 attaches an ID tag corresponding to a source address of the packet received from the shared server 3 to the received packet, and modifies the source address of the packet into a GW address.

Abstract: An administrator 4 (2) registers configuration files of compliant equipment 31 and noncompliant equipment 32 and a configuration script into a management server, and (3) sends the network equipment to a user 33. When the user 33 constructs the local network 3 by connecting the network equipment and turns it on, (4) a configuration request message is transmitted from the compliant equipment 31 to the management server 2. (5) The management server 2 replies with the configuration file of the compliant equipment 31, the configuration file of the noncompliant equipment 32, and the compliant script to the compliant equipment 31 in response to the configuration request. The compliant equipment 31 (6) registers its own configuration file received from the management server 2 into itself, and then (7) configures the configuration file of the noncompliant equipment 32 into the noncompliant equipment by executing the received configuration script.

Abstract: A switch 1 having a tag VLAN function includes a plurality of physical ports P1, P2 . . . , and adds an ID tag unique to each physical port to the header of a packet received by the physical port and sends the packet, and on the other hand, refers to an ID tag attached to a packet received from a GW 2 and sends the packet to a physical port corresponding to the ID tag. The GW 2 searches for a server address corresponding to the ID tag attached to the packet received from the switch 1 and modifies a destination address of the packet into the server address. In addition, the GW 2 attaches an ID tag corresponding to a source address of the packet received from the shared server 3 to the received packet, and modifies the source address of the packet into a GW address.

Abstract: An administrator 4 (2) registers configuration files of compliant equipment 31 and noncompliant equipment 32 and a configuration script into a management server, and (3) sends the network equipment to a user 33. When the user 33 constructs the local network 3 by connecting the network equipment and turns it on, (4) a configuration request message is transmitted from the compliant equipment 31 to the management server 2. (5) The management server 2 replies with the configuration file of the compliant equipment 31, the configuration file of the noncompliant equipment 32, and the compliant script to the compliant equipment 31 in response to the configuration request. The compliant equipment 31 (6) registers its own configuration file received from the management server 2 into itself, and then (7) configures the configuration file of the noncompliant equipment 32 into the noncompliant equipment by executing the received configuration script.

Abstract: The present invention provides an automatic setting system which can automatically or semi-automatically set a network ID into power line modems by remote operations. The present invention includes a step (S1) of detecting a request of setting a network ID into power line modems, a step (S4) of transmitting a network ID request including user ID to a user administration server on a wide area network in response to the setting request, a step (S5) of receiving a network ID reply from the user administration server, a step (S6) of storing terminal ID of the respective power line modems and a network ID included in the network ID reply for each power line modem, and a step (S10) for setting a network ID into the power line modems by transmitting the terminal ID of the respective power line modems and a network ID onto the power line network.

Abstract: The present invention comprises the steps of performing the network setting for the user equipment by the user equipment itself, sending a discover request message to the respective home network equipment by the user equipment, sending a discover reply message including their own equipment information by the respective home network equipment, performing the specific network setting for the respective home network equipment by the user equipment, setting authentication information to the home network equipment by the user equipment, performing a communication test based on the authentication information by the user equipment and the center server, downloading configuration information corresponded to the authentication information from the center server by the user equipment, and setting the configuration information to the user equipment by the user equipment itself.