Administrator Guide

Users with roles and privileges are authorized with the same mechanism. There are six methods available for authorization:

radius, tacacs+, local, enable, line, and none.

When role-based only AAA authorization is enabled, the enable, line, and none methods are not available. Each of these

three methods allows users to be authorized with either a password that is not specific to their userid or with no password at

all. Because of the lack of security, these methods are not available for role-based only mode.

To configure AAA authorization, use the aaa authorization exec command in CONFIGURATION mode. The aaa

authorization exec command determines which CLI mode the user will start in for their session; for example, Exec mode

or Exec Privilege mode. For information about how to configure authentication for roles, see Configure AAA Authentication for

Roles.

aaa authorization exec {method-list-name | default} method [… method4]

You can further restrict users’ permissions, using the aaa authorization command command in CONFIGURATION mode.

aaa authorization command {method-list-name | default} method [… method4]

Examples of Applying a Method List

The following configuration example applies a method list: TACACS+, RADIUS and local:

radius-server host 10.16.150.203 key <clear-text>

tacacs-server host 10.16.150.203 key <clear-text>

aaa authentication login ucraaa tacacs+ radius local

aaa authorization exec ucraaa tacacs+ radius local

aaa accounting commands role netadmin ucraaa start-stop tacacs+

The following configuration example applies a method list other than default to each VTY line.

NOTE: Note that the methods were not applied to the console so the default methods (if configured) are applied there.

line console 0

exec-timeout 0 0

line vty 0

authorization exec ucraaa