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AAA/RADIUS/HWTACACS
CONFIGURATION
When configuring AAA/RADIUS/HWTACACS, go to these sections for information
you are interested in:
■ “AAA/RADIUS/HWTACACS Overview” on page 747
■ “AAA/RADIUS/HWTACACS Configuration Task List” on page 756
■ “Configuring AAA” on page 758
■ “Configuring RADIUS” on page 765
■ “Configuring HWTACACS” on page 771
■ “Displaying and Maintaining AAA/RADIUS/HWTACACS” on page 775
■ “AAA/RADIUS/HWTACACS Configuration Examples” on page 776
■ “Troubleshooting AAA/RADIUS/HWTACACS” on page 779
AAA/RADIUS/HWTAC
ACS Overview
This section covers these topics:
■ “Introduction to AAA” on page 747
■ “Introduction to RADIUS” on page 749
■ “Introduction to HWTACACS” on page 754
Introduction to AAA Authentication, Authorization, and Accounting (AAA) provides a uniform
framework for configuring these three security functions to implement network
security management.
AAA usually uses a client/server model, where the client runs on the network
access server (NAS) and the server maintains user information centrally. In an AAA
network, a NAS is a server for users but a client for the AAA servers, as shown in
Figure 227.
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