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PEAPv0/EAP-MSCHAPv2 is the most common form of PEAP in use, and what is usually referred to as PEAP. The inner authentication protocol is Microsoft 's Challenge Handshake Authentication Protocol , meaning it allows authentication to databases that support the MS-CHAPv2 format, including Microsoft NT and Microsoft Active Directory.
After Windows 11 22H2, with the default activation of Windows Defender Credential Guard, users can no longer authenticate with MSCHAPv2. The developers recommend a move from MSCHAPv2-based connections to certificate-based authentication (such as PEAP-TLS or EAP-TLS ).
Extensible Authentication Protocol (EAP) is an authentication framework frequently used in network and internet connections. It is defined in RFC 3748, which made RFC 2284 obsolete, and is updated by RFC 5247. EAP is an authentication framework for providing the transport and usage of material and parameters generated by EAP methods.
The latest version is standardized in RFC 5247. The advantage of EAP is that it is only a general authentication framework for client-server authentication - the specific way of authentication is defined in its many versions called EAP-methods. More than 40 EAP-methods exist, the most common are: EAP-MD5; EAP-TLS; EAP-TTLS; EAP-FAST; EAP-PEAP
The authentication mechanisms supported are PEAPv0/EAP-MSCHAPv2 (passwords) and PEAP-TLS (smartcards and certificates). Windows Vista Service Pack 1 includes Secure Socket Tunneling Protocol , a new Microsoft proprietary VPN protocol which provides a mechanism to transport Point-to-Point Protocol (PPP) traffic (including IPv6 traffic) through ...
The authentication mechanisms supported are PEAPv0/EAP-MSCHAPv2 (passwords) and PEAP-TLS (smartcards and certificates). Secure Socket Tunneling Protocol (SSTP), introduced in Windows Vista Service Pack 1 is a form of VPN tunnel that provides a mechanism to transport PPP or L2TP traffic through an SSL 3.0 channel.
PEAPv1/EAP-GTC (April 2005) PEAP-TLS; EAP-SIM (April 2005) EAP-AKA (April 2009 [32]) EAP-FAST (April 2009) 802.1X clients and servers developed by specific firms may support other EAP types. This certification is an attempt for popular EAP types to interoperate; their failure to do so as of 2013 is one of the major issues preventing rollout of ...
It's not really correct to say PEAPv0/EAP-MSCHAPv2 is a "form of PEAP". PEAP allows you to tunnel any EAP method inside the TLS channel that PEAP sets up in phase 1. While it's true that EAP-MSCHAPv2 is the common (default) setting used by Windows machines, PEAPv0 can be used just as well with EAP-TLS, EAP-MD5 or any other EAP method.