|Supported in Windows 2000 by RRAS (Routing and Remote Access Services)|
|Managed using Routing and Remote Access snap-in|
|Supports dial-in and dial-out use; dial-in limited in Windows 2000 Professional|
An Internet-standard protocol that exchanges encrypted tokens for authentication.
Microsoft’s proprietary version of CHAP, supported by Windows and Windows NT.
A new version of MS-CHAP, available only to Windows 2000 clients and servers.
A dynamic authentication protocol that can use certificates, smart cards, or other authenticated methods.
Allows use of the PAP (Password Authentication Protocol) and SPAP (Shiva PAP) protocols (plain-text passwords).
If this option is enabled, clients can complete PPP connections with no authentication. It is disabled by default and is a serious security risk.