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Extensible Authentication Protocol (EAP) is a point-to-point (P2P) wireless and local area network (LAN) data communication framework providing a variety of authentication mechanisms.
EAP is used to authenticate simple dialup and LAN connections. Its major scope is wireless network communication such as access points used to authenticate client-wireless/LAN network systems.
EAP wireless and EAP LAN system framework both use a simple request and grant mechanism. For example, a client requests a wireless network connection through the transceiver (a station receiving and transferring data). The transceiver then obtains client information and sends it to the authentication server for further processing. Next, the authenticator requests client identification from the transceiver. Upon receiving the request, the transceiver sends the client a message requesting identification. After verifying that the client can connect and communicate with the server, the client’s identification is sent to the server.