Roaming Service between Public WLAN and Enterprise WLAN

摘要

The present invention relates to a roaming service providing method between a public wireless LAN and a corporate wireless LAN, and performs a proxy function from a central authentication server of a public wireless LAN to a corporate authentication server according to a corporate identifier of a user ID. By processing the ID (ID) transmitted from the central authentication server in a wide area or narrow area and performs a proxy function to the central authentication server for the external ID (ID), public wireless LAN using the internal corporate ID (ID) The present invention provides a roaming service providing method between a public WLAN and an enterprise WLAN for enabling access to an enterprise WLAN using a public WLAN ID.;To this end, the present invention, the table registration step of registering the enterprise separator table in the central authentication server and the authentication table in the enterprise authentication server; Transmitting, by the first access point, an ID response message from the wireless terminal to the central authentication server after establishing a link by receiving a network connection request message from the wireless terminal; When the ID of the ID response message is a public wireless LAN ID, the central authentication server performs its own authentication. When the ID is an internal corporate ID, the central authentication server performs a proxy function with the corporate authentication server by referring to the corporate identifier table. Performing authentication with the wireless terminal with reference to the authentication table; When the first access point establishes a session according to the authentication result and transmits an accounting start message to the central authentication server, after the central authentication server establishes a session, forwarding an accounting start message to the enterprise authentication server; When the first access point terminates the session according to the reception of the logoff message from the wireless terminal and transmits an accounting end message to the central authentication server, the central authentication server deletes the session and then stores the accounting information. A storage step of transmitting a termination message to the corporate authentication server, and storing the billing information after the corporate authentication server deletes the session; And when the wireless terminal requests a corporate wireless LAN connection, the corporate authentication server performs self-authentication if the received ID is an internal corporate ID. And performing a proxy function with the authentication server to perform authentication, and then providing a service for the Internet.;Public WLAN, Enterprise WLAN, Wide Area ID, Enterprise Separator, Roaming Service