Dell Force10 Z9000 FTOS Configuration Guide for Z9000 System - Page 65

To apply an IP ACL to a line: Task Apply an ACL to a VTY line. Command Syntax ip access-class access-list Command Mode LINE To view the configuration, enter the show config command in the LINE mode, as shown in Applying an Access List to a VTY Line. Applying an Access List to a VTY Line FTOS(config-std-nacl)#show config ! ip access-list standard myvtyacl seq 5 permit host 10.11.0.1 FTOS(config-std-nacl)#line vty 0 FTOS(config-line-vty)#show config line vty 0 access-class myvtyacl FTOS Behavior: Prior to FTOS version 7.4.2.0, in order to deny access on a VTY line, you must apply an ACL and AAA authentication to the line. Then users are denied access only after they enter a username and password. Beginning in FTOS version 7.4.2.0, only an ACL is required, and users are denied access before they are prompted for a username and password. Configure Login Authentication for Terminal Lines You can use any combination of up to 6 authentication methods to authenticate a user on a terminal line. A combination of authentication methods is called a method list. If the user fails the first authentication method, FTOS prompts the next method until all methods are exhausted, at which point the connection is terminated. The available authentication methods are: • enable-Prompt for the enable password. • line-Prompt for the e password you assigned to the terminal line. You must configure a password for the terminal line to which you assign a method list that contains the line authentication method. Configure a password using the command password from LINE mode. • local-Prompt for the system username and password. • none-Do not authenticate the user. • radius-Prompt for a username and password and use a RADIUS server to authenticate. • tacacs+-Prompt for a username and password and use a TACACS+ server to authenticate. Management | 65