System information

94 Chapter 3: Defending the Perimeter

exactly what commands an administrator has access to. Following are the steps required to

conﬁgure these views:

Step 1 Enable AAA: Authentication, authorization, and accounting (AAA) is discussed

in detail in Chapter 4, “Conﬁguring AAA.” For now, just realize that AAA must

be enabled to support views. Example 3-11 shows how to enable AAA on an IOS

router.

Step 2 Enable the root view: The root view is represented by the set of commands

available to an administrator logged in with a pri’vilege level of 15. You might be

required to provide the enable secret password to enable the root view, as shown

in Example 3-12.

Step 3 Create a view: Use the parser view name command to create a new

view, as shown in Example 3-13.

Step 4 Set a password for the view: Use the secret 0 password command to set the

password required to invoke the view. The 0 in the command indicates that the

password provided is in plain text, as opposed to an MD5 hash value. Example

3-14 shows how to conﬁgure a view’s password.

Example 3-11 Enabling AAA

R1# cc

R1(config)# aa

R1(config)# ee

Example 3-12 Enabling the Root View

R1# ee

Password:

R1#

Example 3-13 Creating a View

R1# cc

R1(config)# pp

R1(config-view)#

Example 3-14 Setting a Password for a View

R1(config-view)# ss

R1(config-view)#