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Table 71. Use cases for dot1x supplicant to trigger RADIUS Accounting Start/Stop records (continued)
dot1x event Accounting type Attributes
Disable dot1x globally/interface Stop Stop record attributes with termination cause as
Port Administratively Disabled (22).
AAA Authentication
Dell EMC Networking OS supports a distributed client/server system implemented through authentication, authorization, and
accounting (AAA) to help secure networks against unauthorized access.
In the Dell EMC Networking implementation, the Dell EMC 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 EMC Networking uses local usernames/passwords (stored on the Dell EMC 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
Dell EMC Networking OS, 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 Dell Networking OS
Command Reference Guide.
Configure Login Authentication for Terminal Lines
You can assign up to five authentication methods to a method list. Dell EMC Networking OS evaluates the methods in the order
in which you enter them in each list.
If the first method list does not respond or returns an error, Dell EMC Networking OS applies the next method list until the user
either passes or fails the authentication. If the user fails a method list, Dell EMC Networking OS does not apply the next method
list.
Configuring AAA Authentication Login Methods
To configure an authentication method and method list, use the following commands.
Dell Networking OS Behavior: If you use a method list on the console port in which RADIUS or TACACS is the last
authentication method, and the server is not reachable, Dell Networking OS allows access even though the username and
password credentials cannot be verified. Only the console port behaves this way, and does so to ensure that users are not
locked out of the system if network-wide issue prevents access to these servers.
1. Define an authentication method-list (method-list-name) or specify the default.
CONFIGURATION mode
aaa authentication login {method-list-name | default} method1 [... method4]
The default method-list is applied to all terminal lines.
Possible methods are:
Security
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