White Papers
AAA Authorization
The system enables AAA new-model by default.
You can set authorization to be either local or remote. Dierent combinations of authentication and authorization yield dierent 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 congure 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 congure up to 16 privilege levels. The system
is pre-congured with three privilege levels and you can congure 13 more. The three pre-congured 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 congure 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 specic 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 congured and you can customize them for dierent users and access.
After you congure other privilege levels, enter those levels by adding the level parameter after the enable command or by conguring a
user name or password that corresponds to the privilege level. For more information about conguring user names, refer to Conguring a
Username and Password.
By default, commands in the Dell Networking OS are assigned to dierent 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 congure passwords to control access to the box and assign dierent 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.
Conguration Task List for Privilege Levels
The following list has the conguration tasks for privilege levels and passwords.
• Conguring a Username and Password (mandatory)
• Conguring the Enable Password Command (mandatory)
• Conguring 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.
890
Security