Setting Privilege Levels

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Privilege levels associate router commands with each security level configured on the router. This allows for a finer granularity of control when restricting user access. There are 16 privilege levels contained within the router operating system. Level 2 to level 14 are customizable and allow you to configure multiple privilege levels and multiple passwords to enable certain users to have access to specific commands.

But most users of Cisco routers are familiar with only two privilege levels:

• User EXEC mode — privilege level 1


• Privileged EXEC mode — privilege level 15

When you log in to a Cisco router under the default configuration, you’re in user EXEC mode (level 1). From this mode, you have access to some information about the router, such as the status of interfaces, and you can view routes in the routing table. However, you can’t make any changes or view the running configuration file.

Because of these limitations, most Cisco router users immediately type enable to get out of user EXEC mode. By default, typing enable takes you to level 15, privileged EXEC mode. In the Cisco IOS, this level is equivalent to having root privileges in UNIX or administrator privileges in Windows. In other words, you have full access to the router.

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