For security purposes, the router has two levels of access to commands:

• User EXEC mode – Typical tasks include those that check the router status. In this mode, router configuration changes are not allowed.
• Privileged EXEC mode – Typical tasks include those that change the router configuration.

The user EXEC mode prompt is displayed upon login to a router. Commands available at this user level are a subset of the commands available at the privileged EXEC level. For the most part, these commands allow a user to display information without changing router configuration settings.

To access the full set of commands, privileged EXEC mode must be entered. At the ">" prompt, type enable. At the password: prompt, enter the password that has been set with the enable secret command. Two commands can be used to set a password used to access privileged EXEC mode: enable password and enable secret. If both commands are used, the enable secret command takes precedence. Once the login steps have been completed, the prompt changes to a "#" indicating the privileged EXEC mode has been entered. The global configuration mode can only be accessed from the privileged EXEC mode. The following are specific modes that can also be accessed from the global configuration mode:

• Interface
• Subinterface
• Line
• Router
• Route-map

To return to the user EXEC mode from the privileged EXEC mode, the disable command or exit may be entered. To return to the privileged EXEC mode from the global configuration mode, type exit or Ctrl-Z. Ctrl-Z may also be used to return directly to the privileged EXEC mode from any sub-mode of global configuration.

Web Links Setting up HyperTerminal http://www.alltel.net/~slashdot/ adsl/hyperterminal-setup.shtml