MS-CHAP, Microsoft PPP CHAP Extensions

Description Glossary RFCs Publications Obsolete RFCs

Description:

Protocol suite: PPP.
Type:PPP link control protocol.
MIME subtype:
SNMP MIBs:
Working groups:
Links:

MS-CHAP is used to periodically authenticate the identity of the peer.

MS-CHAP version 1 is enabled by negotiating CHAP Algorithm 0x80 in LCP option 3.

MS-CHAP version 2 is enabled by negotiating CHAP Algorithm 0x81 in LCP option 3.

RFC 2433:

This document describes Microsoft's PPP CHAP dialect (MS-CHAP), which extends the user authentication functionality provided on Windows networks to remote workstations. MS-CHAP is closely derived from the PPP Challenge Handshake Authentication Protocol (CHAP).

Microsoft created MS-CHAP to authenticate remote Windows workstations, providing the functionality to which LAN-based users are accustomed while integrating the encryption and hashing algorithms used on Windows networks.

Where possible, MS-CHAP is consistent with standard CHAP. Briefly, the differences between MS-CHAP and standard CHAP are:


Packet format:


Glossary:


RFCs:

[RFC 2433] Microsoft PPP CHAP Extensions.

[RFC 2759] Microsoft PPP CHAP Extensions, Version 2.


Description Glossary RFCs Publications Obsolete RFCs