Authentication login – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 195

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Brocade 6910 Ethernet Access Switch Configuration Guide

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53-1002581-01

Authentication Sequence

9

Example

Console(config)#authentication enable radius

Console(config)#

Related Commands

enable password

- sets the password for changing command modes (

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)

authentication login

This command defines the login authentication method and precedence. Use the no form to
restore the default.

Syntax

authentication login {[local] [radius] [tacacs]}

no authentication login

local - Use local password.

radius - Use RADIUS server password.

tacacs - Use TACACS server password.

Default Setting

Local

Command Mode

Global Configuration

Command Usage

RADIUS uses UDP while TACACS+ uses TCP. UDP only offers best effort delivery, while TCP
offers a connection-oriented transport. Also, note that RADIUS encrypts only the password in
the access-request packet from the client to the server, while TACACS+ encrypts the entire
body of the packet.

RADIUS and TACACS+ logon authentication assigns a specific privilege level for each user
name and password pair. The user name, password, and privilege level must be configured on
the authentication server.

You can specify three authentication methods in a single command to indicate the
authentication sequence. For example, if you enter “authentication login radius tacacs local,”
the user name and password on the RADIUS server is verified first. If the RADIUS server is not
available, then authentication is attempted on the TACACS+ server. If the TACACS+ server is not
available, the local user name and password is checked.

Example

Console(config)#authentication login radius

Console(config)#

Related Commands

username

- for setting the local user names and passwords (

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