Users Guide

Therefore, the RADIUS server must have an entry for this username.
AAA Authorization
The system 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. 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 system 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 system.
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 in the Dell Networking OS 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 system 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)
For a complete listing of all commands related to privilege levels and passwords, refer to the Security chapter in the Dell
Networking OS Command Reference Guide.
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