Location management server and ethernet-based wireless LAN distribution system having local management server, and embodiment method thereof

A location management server, which is for a wireless LAN distribution system for forwarding data received from a correspondent node to a station connected to an access point, the location management server comprising:

• a mapping table manager for, upon receiving a message related to association with the station from the access point, analyzing an IP address of a destination station and a physical access control address of an access point having the destination station located therein from the received association message, and managing the analyzed information through a mapping table as an information table;
• an IP address checker for checking the IP address of the destination station using the data forwarded from the correspondent node;
• and
• a MAC frame generator for, upon receiving information from the IP address checker and the mapping table manager, generating a forwarding physical access control frame destined for the access point having the destination station located therein, and outputting the physical access control frame.

An embodiment method for a wireless LAN distribution system, which is for forwarding data received from a correspondent node to a station connected to an access point, the method comprising:

• (a) upon receiving an association-related message from the station, the access point associating the station in its area according to the received association message;
• (b) checking an IP address of the station and a physical access control address of an access point having the station located therein from the association message including information on the associated station, and then managing a mapping table being an information table based on the checked addresses;
• (c) upon receiving data destined for a specific station from the correspondent node, checking the IP address of the received data using the mapping table;
• and
• (d) generating a physical access control frame based on the checked IP address, and forwarding the generated physical access control frame to the destination station.

A recording medium with a built-in program including an embodiment method for a wireless LAN distribution system for forwarding data received from a correspondent node to a station connected to an access point, the recording medium with a built-in program comprising:

• (a) upon receiving an association-related message from the station, causing the access point to associate with a station in its area according to the received association message;
• (b) checking a physical access control address of an access point having the station located therein from the association message including information on the associated station, and then managing a mapping table being a table based on the checked address;
• (c) upon receiving data destined for a specific station from the correspondent node, checking an IP address of the received data using the mapping table;
• and
• (d) generating a physical access control frame based on the checked IP address, and forwarding the generated physical access control frame to the destination station.