Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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aaa authentication login

Configure AAA Authentication method lists for user access to EXEC mode ( Enable log-in).

Syntax

aaa authentication login { method-list-name | default} method [ ... method4]

To return to the default setting, use the no aaa authentication login { method-list-name | default} command.

Parameters

method-list-name	Enter a text string (up to 16 characters long) as the name of a user-configured method list that can be applied to different lines.
default	Enter the keyword `default` to specify that the method list specified is the default method for all terminal lines.
method	Enter one of the following methods: `enable`: use the password the `enable password` command defines in CONFIGURATION mode. `line`: use the password the `password` command defines in LINE mode. `none`: no authentication. `radius`: use the RADIUS servers configured with the `radius-server host` command. `tacacs+`: use the TACACS+ servers configured with the `tacacs-server host` command.
... method4	(OPTIONAL) Enter up to four additional methods. In the event of a “no response” from the first method, Dell Networking Operating System (OS) applies the next configured method (up to four configured methods).

Defaults

Not configured (that is, no authentication is performed).

Command Modes

CONFIGURATION

Supported Modes

All Modes

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.4(0.0)	Supported on the FN I/O Aggregator.
9.3(0.0)	Supported on the M I/O Aggregator.

Usage Information

By default, the locally configured username password is used. If you configure aaa authentication login default, Dell Networking Operating System (OS) uses the methods this command defines for login instead.

Methods configured with the aaa authentication login command are evaluated in the order they are configured. If users encounter an error with the first method listed, Dell Networking Operating System (OS) applies the next method configured. If users fail the first method listed, no other methods are applied. The only exception is the local method. If the user’s name is not listed in the local database, the next method is applied. If the correct user name/password combination is not entered, the user is not allowed access to the switch.

NOTE: If authentication fails using the primary method, Dell Networking Operating System (OS) employs the second method (or third method, if necessary) automatically. For example, if the TACACS+ server is reachable, but the server key is invalid, Dell Networking Operating System (OS) proceeds to the next authentication method. The TACACS+ is incorrect, but the user is still authenticated by the secondary method.

After configuring the aaa authentication login command, configure the login authentication command to enable the authentication scheme on terminal lines.

Connections to the SSH server work with the following login mechanisms: local, radius, and tacacs.

Related Commands

login authentication — enables AAA login authentication on the terminal lines.

radius-server host — specifies a RADIUS server host.

tacacs-server host — specifies a TACACS+ server host.