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S12700 V200R011C10 Configuration Guide - User Access and Authentication

This document describes the working mechanisms, configuration procedures, and configuration examples of User Access and Authentication features, such as AAA, DAA, NAC, PPPoE, Policy Association, and IP session.

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802.1X Authentication

802.1X Authentication

As shown in Figure 5-9, users' network access needs to be controlled to ensure network security. Only authenticated users are allowed to access network resources authorized by the administrator.

Figure 5-9  Typical application of 802.1X authentication
The user terminal is a PC with 802.1X client software installed on it. The user can use the 802.1X client software to initiate an authentication request to the access device. After exchanging information with the user terminal, the access device sends the user information to the authentication server for authentication. If the authentication succeeds, the access device sets the interface connected to the user to the Up state and allows the user to access the network. If the authentication fails, the access device rejects the user's access request.

802.1X authentication results in the change of the interface state, but does not involve IP address negotiation or assignment. 802.1X authentication is the simplest authentication solution. However, the 802.1X client software must be installed on the user terminal.

Updated: 2019-10-21

Document ID: EDOC1000178117

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