Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 479

Configure AAA Authentication Login Methods To configure an authentication method and method list, use these commands in the following sequence in CONFIGURATION mode: Step Command Syntax 1 aaa authentication login {method-list-name | default} method1 [...method4] 2 line {aux 0 | console 0 | vty number [... end-number]} 3 login authentication {method-list-name | default} Command Mode Purpose CONFIGURATION CONFIGURATION Define an authentication method-list (method-list-name) or specify the default. The default method-list is applied to all terminal lines. Possible methods are: • enable-use the password defined by the enable secret or enable password command in CONFIGURATION mode. • line-use the password defined by the password command in LINE mode. • local-use the username/password database defined in the local configuration. • none-no authentication. • radius-use the RADIUS server(s) configured with the radius-server host command. • tacacs+-use the TACACS+ server(s) configured with the tacacs-server host command Enter LINE mode. LINE Assign a method-list-name or the default list to the terminal line. FTOS 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, FTOS 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 in the event that network-wide issue prevents access to these servers. To view the configuration, use the show config command in LINE mode or the show running-config command in EXEC Privilege mode. Note: Dell Force10 recommends that you use the none method only as a backup. This method does not authenticate users. The none and enable methods do not work with secure shell (SSH). You can create multiple method lists and assign them to different terminal lines. Security | 477