In RADIUS, which method comes last in the default use order?

In the context of RADIUS authentication, the default use order of authentication methods is significant to understand how connections are established and secured. The method that comes last in the default use order is CHAP (Challenge Handshake Authentication Protocol).

CHAP is seen as less secure compared to other methods like PAP (Password Authentication Protocol) and MSCHAP (Microsoft Challenge Handshake Authentication Protocol) or MSCHAPv2. While PAP sends passwords in plaintext, CHAP offers a more secure mechanism by periodically checking the identity of the client through a challenge-response mechanism. However, MSCHAP and MSCHAPv2 provide even stronger encryption and security features, making them preferred choices initially in the use order.

By understanding this sequence, network security professionals can better configure their RADIUS servers, selecting the most secure method available while considering compatibility with client devices. This knowledge is crucial for ensuring the integrity and security of user authentication processes within network environments.