CCSP Self-Study: Securing Cisco IOS Networks (SECUR)

Introduction to AAA for Cisco Routers

Authentication, authorization, and accounting (AAA) services are used to authenticate router administrators and users who wish to access the corporate LAN through dial-in or Internet connections.

AAA services provide higher degrees of scalability than the user-level and privileged EXEC authentication you have learned so far.

Unauthorized access and repudiation in campus, dialup, and Internet environments creates the potential for network intruders to gain access to sensitive network equipment and services. The Cisco AAA services enable systematic and scalable access security.

AAA Model: Network Security Architecture

Network and administrative access security in the Cisco environment—whether it involves campus, ...