PEAP
    Protected Extensible
        Authentication Protocol is an IETF draft standard to authenticate wireless LAN clients
        without requiring them to have certificates. In PEAP authentication, first the user
        authenticates the authentication server, then the authentication server authenticates the
        user. If the first phase is successful, the user is then authenticated over the SSL tunnel
        created in phase one using EAP-Generic Token Card (EAP-GTC) or Microsoft Challenged
        Handshake Protocol Version 2 (MSCHAP V2). (See also 
EAP-TLS/EAP-TTLS.)