# aaa authentication login

#### Syntax

aaa authentication login { default | authListName } authenticator [ authenticator ]*

no aaa authentication login authListName

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Creates an authentication list and the criteria for login. This authentication is applied to vty users. The no version disables AAA authentication.

#### Options

- default—Specifies the use of the default login for authentication
- authListName—Existing authentication list name (created using the login authentication command); a string of 1–32 characters
- authenticator—Authentication method:
  - line—Use the line password for authentication
  - none—Use no authentication
  - radius—Use RADIUS authentication
  - tacacs+—Use TACACS+ authentication
- *—Indicates that one or more parameters can be repeated multiple times in a list in the command line

#### Mode

Global Configuration