| Summary

| In this module, the concept of AAA security was introduced and several important related topics were discussed. The student should now understand why AAA security is one of the primary components of the overall network security policy of an organization. AAA is essential to providing secure remote access to the network and remote management of network devices.

After introducing AAA, the student was introduced to the network access server (NAS). The NAS provides a method for remote users to gain access to company resources after being authenticated.

The student then learned about TACACS+ and RADIUS and how both can be used in a network to provide authentication and authorization.

Finally, the student was introduced to Authentication Proxy technology and how it provides the network administrator with more flexibility in securing access to the network.