D-Link DES-3550 Command Line Interface Reference Manual page 258

config authen_login
Purpose
Used to configure a user-defined or default method list of authentication methods for user
login.
Syntax
config authen_login [default | method_list_name <string 15>] method {tacacs |
xtacacs | tacacs+ | radius | server_group <string 15> | local | none}
Description
This command will configure a user-defined or default method list of authentication
methods for users logging on to the Switch. The sequence of methods implemented in this
command will affect the authentication result. For example, if a user enters a sequence of
methods like tacacs – xtacacs – local, the Switch will send an authentication request to the
first tacacs host in the server group. If no response comes from the server host, the Switch
will send an authentication request to the second tacacs host in the server group and so
on, until the list is exhausted. At that point, the Switch will restart the same sequence with
the following protocol listed, xtacacs. If no authentication takes place using the xtacacs list,
the local account database set in the Switch is used to authenticate the user. When the
local method is used, the privilege level will be dependant on the local account privilege
configured on the Switch.
Successful login using any of these methods will give the user a "user" priviledge only. If
the user wishes to upgrade his or her status to the administrator level, the user must
implement the enable admin command, followed by a previously configured password.
(See the enable admin part of this section for more detailed information, concerning the
enable admin command.)
Parameters
default – The default method list for access authentication, as defined by the user. The
user may choose one or a combination of up to four(4) of the following authentication
methods:
method_list_name – Enter a previously implemented method list name defined by the user.
The user may add one, or a combination of up to four (4) of the following authentication
methods to this method list:
DES-3550 Layer 2 Fast Ethernet Switch
tacacs – Adding this parameter will require the user to be authenticated using the
TACACS protocol from the remote TACACS server hosts of the TACACS server
group list.
xtacacs – Adding this parameter will require the user to be authenticated using the
XTACACS protocol from the remote XTACACS server hosts of the XTACACS
server group list.
tacacs+ – Adding this parameter will require the user to be authenticated using the
TACACS+ protocol from the remote TACACS+ server hosts of the TACACS+
server group list.
radius - Adding this parameter will require the user to be authenticated using the
RADIUS protocol from the remote RADIUS server hosts of the RADIUS server
group list.
server_group <string 15> - Adding this parameter will require the user to be
authenticated using a user-defined server group previously configured on the
Switch.
local - Adding this parameter will require the user to be authenticated using the
local user account database on the Switch.
none – Adding this parameter will require no authentication to access the sSwitch.
tacacs – Adding this parameter will require the user to be authenticated using the
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