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Configuration Guide - Security

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Security, including ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, Port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, separating the management plane from the service plane, security risks.
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Overview of AAA

Overview of AAA

Definition

Authentication, Authorization, and Accounting (AAA) provide a management mechanism for network security.

AAA provides the following functions:

  • Authentication: Verifies whether users are authorized for network access.

  • Authorization: Authorizes users to use particular services.

  • Accounting: Records the network resources used by users.

Purpose

Users can use one or more security services provided by AAA. For example, if a company wants to authenticate employees that access certain network resources, the network administrator only needs to configure an authentication server. If the company also wants to record operations performed by employees on the network, an accounting server is needed.

In summary, AAA authorizes users to access specific resources and records user operations. AAA is widely used because it features good scalability and facilitates centralized user information management. AAA can be implemented using multiple protocols, such as Remote Authentication Dial-In User Service (RADIUS) and Huawei Terminal Access Controller Access Control System (HWTACACS). RADIUS is most widely used.

AAA prevents unauthorized users from logging in to a device and improves system security.

Relevant Information

For details about AAA attributes, click HUAWEI Enterprise Network AAA Attribute Query Tool.

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Updated: 2019-04-20

Document ID: EDOC1100074765

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