Method and device for web redirect authentication in WiFi roaming based on AC and AP interworking
First Claim
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1. A method of managing WiFi roaming comprising:
- receiving, at an access point (AP) which supports wireless Internet service for a mobile station, an HTTP request of the mobile station;
redirecting, by the AP, the HTTP request of the mobile station from the AP to a web server over a network, wherein in the redirected HTTP request, a source IP address is replaced with an IP address of an access controller (AC) instead of an IP address of the AP;
in response to said redirecting the HTTP request, receiving, by the web server, a MAC address of the mobile station from the mobile station, and requesting authentication by transmitting to the AC corresponding to the replaced source IP address, login information comprising the MAC address of the mobile station;
performing, by the AC, control via MAC address authentication of the mobile station through communication with an authentication server over the network such that the authentication server starts accounting in response to the MAC address of the mobile station received by the authentication server from the AC being found in a database at the authentication server;
permitting, by the AC, association of the mobile station with the AP based on said performing control via the MAC address authentication; and
receiving, by the authentication server via the AC, accounting information from the AP to which the mobile station is connected and processing, by the authentication server, statistics of the received accounting information for the mobile station.
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Abstract
A WiFi roaming management method and device which redirect an HTTP request of a mobile terminal from an AP to an AC even though the AC and the AP do not exist in the same subnet, which redirects a source IP address for an HTTP request, after transferring, to an IP address of the AC, and which smoothly support a wireless Internet service in a distributed processing system according to a web authentication of the AC in a WiFi roaming method is provided. A terminal session management function and a traffic control function are separated by a premium AC (Access Controller) and a premium AP (Access Point) interworked with a tunneling method according to a CAPWAP protocol.
12 Citations
11 Claims
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1. A method of managing WiFi roaming comprising:
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receiving, at an access point (AP) which supports wireless Internet service for a mobile station, an HTTP request of the mobile station; redirecting, by the AP, the HTTP request of the mobile station from the AP to a web server over a network, wherein in the redirected HTTP request, a source IP address is replaced with an IP address of an access controller (AC) instead of an IP address of the AP; in response to said redirecting the HTTP request, receiving, by the web server, a MAC address of the mobile station from the mobile station, and requesting authentication by transmitting to the AC corresponding to the replaced source IP address, login information comprising the MAC address of the mobile station; performing, by the AC, control via MAC address authentication of the mobile station through communication with an authentication server over the network such that the authentication server starts accounting in response to the MAC address of the mobile station received by the authentication server from the AC being found in a database at the authentication server; permitting, by the AC, association of the mobile station with the AP based on said performing control via the MAC address authentication; and receiving, by the authentication server via the AC, accounting information from the AP to which the mobile station is connected and processing, by the authentication server, statistics of the received accounting information for the mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An access controller (AC) which supports management of WiFi roaming comprising:
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a receiver configured to receive, from a web server, a request for authentication comprising login information with a MAC address of a mobile station which is received by the web server from the mobile station, in response to redirecting, by an access point (AP), an HTTP request of the mobile station from the AP to the web server in which a source IP address of the HTTP request is replaced with an IP address of the AC instead of an IP address of the AP; an authenticator configured to control via MAC address authentication of the mobile station through communication with an authentication server over a network so that the authentication server starts accounting in response to the MAC address of the mobile station received by the authentication server from the AC being found in a database at the authentication server, and configured to permit association of the mobile station with the AP; and an accounting processor configured to transmit, to the authentication server, accounting information received from the AP to which the mobile station is connected and wherein the authentication ser1 and ver processes statistics of the received accounting information for the mobile station. - View Dependent Claims (10, 11)
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Specification