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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
426
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
authentication enable
This command defines the authentication method and precedence to use when changing from Exec Command Mode to
Privileged Exec command mode with the enable command (see page 4-10). Use the no form to restore the default.
Syntax
authentication enable {[local] [radius] [tacacs]}