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Part II. Protecting the Network Infrastr... > Chapter 7. Implementing AAA Using IO...

Chapter 7. Implementing AAA Using IOS and the ACS Server

As you learned in the preceding chapter, using authentication, authorization, and accounting (AAA) to verify the identity of a user, and what that user is authorized to do, is a great way to secure the management plane on a router or switch. The challenge, however, is that most companies have many network devices. If a single administrator needs access to 10 different routers, and you are using the local database only for the username and password of that administrator (remember, the local database means the running configuration on that specific router), you must create that same user account 10 different times, once on each router. If he ever needs to change the password, it also requires going back to all those 10 devices and manually changing it on each one. This solution does not scale well in environments with multiple administra....


  

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