PPP PAP&CHAP Certification

Source: Internet
Author: User

"Experiment Name"

PPP CHAP Authentication

PPP PAP Certification

"Experimental Purpose"

Mastering the process and configuration of PPP CHAP authentication

Mastering the process and configuration of PPP PAP certification

"Experimental principle"

The PPP protocol is located at the data link layer of the OSI seven layer model, and the PPP protocol is divided into two sub-layers according to function: LCP,

Ncp. LCP is mainly responsible for the negotiation, establishment, callback, authentication, data compression, multilink bundling and other functions of the link.

The NCP is primarily responsible for negotiating with upper-level protocols to provide services for network-layer protocols.

The authentication function of PPP refers to the authentication of the password in the process of establishing the PPP link, verifying that by establishing the connection,

Verify that the link is not removed by removing it.

The PPP protocol supports two authentication methods, PAP and CHAP. PAP (Password authentication Protocol,

Password Authentication protocol) refers to verifying that both parties complete the verification process through two handshakes, which is a

A method for authenticating a user on a Point protocol server. The authentication request is initiated by the authenticated party, which contains the validated

User name and password. A reply is made after validation by the verifier, either through validation or validation failure. During the authentication process, the user name and secret

The code is transmitted on the link in clear text mode.

"Experimental Steps"

First step: Router basic configuration



PPP PAP&CHAP Certification

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