![]() ![]() ![]() The LAP and the controller only forward messages between the wireless client and RADIUS server. The NPS authenticates the wireless client with EAP-MS-CHAP v2. ![]() Phase 2 – EAP-Authenticated CommunicationĮAP communication, which includes EAP negotiation, occurs inside the TLS channel created by PEAP within the first stage of the PEAP authentication process. The key that is derived within this negotiation is used to encrypt all subsequent communication. After authentication is successfully completed between the wireless client and NPS, the TLS session is negotiated between the client and NPS. ![]() After the IEEE 802.11-based association is successfully established between the client and the access point, the TLS session is negotiated with the AP. PEAP does not specify an authentication method, but provides additional security for other Extensible Authentication Protocols (EAPs), such as EAP-MS-CHAP v2, that can operate through the TLS-encrypted channel provided by PEAP Phase 1 – TLS Encrypted ChannelĪn IEEE 802.11-based association provides an open system or shared key authentication before a secure association is created between the client and the access point. PEAP uses Transport Level Security (TLS) to create an encrypted channel between an authenticating PEAP client, such as a wireless laptop, and a PEAP authenticator, such as Microsoft NPS or any RADIUS server. ![]()
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