Reference Guide

Monitoring AAA Accounting
FTOS does not support periodic interim accounting because the periodic command can cause heavy congestion
when many users are logged in to the network.
No specific show command exists for TACACS+ accounting.
To obtain accounting records displaying information about users currently logged in, use the following command.
• Step through all active sessions and print all the accounting records for the actively accounted functions.
CONFIGURATION mode or EXEC Privilege mode
show accounting
Example of the show accounting Command for AAA Accounting
FTOS#show accounting
Active accounted actions on tty2, User admin Priv 1
Task ID 1, EXEC Accounting record, 00:00:39 Elapsed, service=shell
Active accounted actions on tty3, User admin Priv 1
Task ID 2, EXEC Accounting record, 00:00:26 Elapsed, service=shell
FTOS#
AAA Authentication
FTOS supports a distributed client/server system implemented through authentication, authorization, and accounting
(AAA) to help secure networks against unauthorized access.
In the Dell Networking implementation, the Dell Networking system acts as a RADIUS or TACACS+ client and sends
authentication requests to a central remote authentication dial-in service (RADIUS) or Terminal access controller
access control system plus (TACACS+) server that contains all user authentication and network service access
information.
Dell Networking uses local usernames/passwords (stored on the Dell Networking system) or AAA for login
authentication. With AAA, you can specify the security protocol or mechanism for different login methods and different
users. In FTOS, AAA uses a list of authentication methods, called method lists, to define the types of authentication and
the sequence in which they are applied. You can define a method list or use the default method list. User-defined
method lists take precedence over the default method list.
NOTE: If a console user logs in with RADIUS authentication, the privilege level is applied from the RADIUS server if
the privilege level is configured for that user in RADIUS, whether you configure RADIUS authorization.
Configuration Task List for AAA Authentication
The following sections provide the configuration tasks.
• Configure Login Authentication for Terminal Lines
• Configuring AAA Authentication Login Methods
• Enabling AAA Authentication
• Enabling AAA Authentication—RADIUS
For a complete list of all commands related to login authentication, refer to the Security chapter in the FTOS Command
Reference Guide .
691