Administrator Guide

AAA Authorization
The Dell Networking OS enables AAA new-model by default.
You can set authorization to be either local or remote. Different combinations of authentication and
authorization yield different results. By default, the system sets both to local.
Privilege Levels Overview
Limiting access to the system is one method of protecting the system and your network. However, at
times, you might need to allow others access to the router and you can limit that access to a subset of
commands. In the Dell Networking OS, you can configure a privilege level for users who need limited
access to the system.
Every command in the Dell Networking OS is assigned a privilege level of 0, 1, or 15. You can configure
up to 16 privilege levels. The Dell Networking OS is pre-configured with three privilege levels and you can
configure 13 more. The three pre-configured levels are:
• Privilege level 1 — is the default level for EXEC mode. At this level, you can interact with the router,
for example, view some show commands and Telnet and ping to test connectivity, but you cannot
configure the router. This level is often called the “user” level. One of the commands available in
Privilege level 1 is the
enable command, which you can use to enter a specific privilege level.
• Privilege level 0 — contains only the end, enable, and disable commands.
• Privilege level 15 — the default level for the enable command, is the highest level. In this level you
can access any command in the Dell Networking OS.
Privilege levels 2 through 14 are not configured and you can customize them for different users and
access.
After you configure other privilege levels, enter those levels by adding the level parameter after the
enable command or by configuring a user name or password that corresponds to the privilege level. For
more information about configuring user names, refer to
Configuring a Username and Password.
By default, commands are assigned to different privilege levels. You can access those commands only if
you have access to that privilege level. For example, to reach the protocol spanning-tree command,
log in to the router, enter the enable command for privilege level 15 (this privilege level is the default
level for the command) and then enter CONFIGURATION mode.
You can configure passwords to control access to the box and assign different privilege levels to users.
The Dell Networking OS supports the use of passwords when you log in to the system and when you
enter the enable command. If you move between privilege levels, you are prompted for a password if
you move to a higher privilege level.
Configuration Task List for Privilege Levels
The following list has the configuration tasks for privilege levels and passwords.
• Configuring a Username and Password (mandatory)
• Configuring the Enable Password Command (mandatory)
• Configuring Custom Privilege Levels (mandatory)
• Specifying LINE Mode Password and Privilege (optional)
• Enabling and Disabling Privilege Levels (optional)
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