1. Extensible Authentication Protocol

2. Extensible Authentication Protocol
'Extensible Authentication Protocol', or 'EAP', is an authentication framework frequently used in wireless LAN|wireless networks and Point-to-Point Protocol|Point-to-Point connections. It is defined in RFC 3748, which made RFC 2284 obsolete, and was updated by RFC 5247.

3. Protected Extensible Authentication Protocol
The 'Protected Extensible Authentication Protocol', also known as 'Protected EAP' or simply 'PEAP', is a protocol that encapsulates the Extensible Authentication Protocol (EAP) within an encrypted and authenticated Transport Layer Security (TLS) tunneling protocol|tunnel.

4. Protected Extensible Authentication Protocol - PEAPv1 with EAP-GTC
Since Cisco has typically recommended lightweight EAP protocols such as Lightweight Extensible Authentication Protocol|LEAP and EAP-FAST protocols instead of PEAP, the latter has not been as widely adopted as some had hoped.

5. Lightweight Extensible Authentication Protocol
The 'Lightweight Extensible Authentication Protocol' (LEAP) is a proprietary wireless LAN authentication method developed by Cisco Systems

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