D-Link DI-1750 Reference Manual page 104

After you have enabled CHAP or PAP, the local router or access server requires authentication from
remote devices. If the remote device does not support the enabled protocol, no traffic will be passed to
that device.
To use CHAP or PAP, you must perform the following tasks:
♦ Enable PPP encapsulation.
♦ Enable CHAP or PAP on the interface.
For CHAP, configure host name authentication and the secret or password for each remote system with
which authentication is required.
To enable PPP encapsulation, use the following command in interface configuration mode:
Command
encapsulation ppp
To enable CHAP or PAP authentication on an interface configured for PPP encapsulation, use the
following command in interface configuration mode:
Command
ppp authentication
ms-chap| pap} [word | default]
[callin]
Key Word:
Q(quit)
......
(26)ppp
(27)priority-group
......
Please Input the code of command to be excute(0-34): 26
Key Word:
U(undo) D(default)
(00)authentication
(01)authorization
......
Please Input the code of command to be excute(0-9): 0
Key Word:
Q(quit)
(00)chap
(01)ms-chap
(02)pap
Please Input the code of command to be excute(0-2): 0
Key Word:
Q(quit)
(00)WORD
(01)callin
......
Please Input the code of command to be excute(0-5): 0
Please input a string:dlink （input authentication list name）
Will you excute it? (Y/N):y
To specify the password to be used in CHAP or PAP caller identification, use the following command in
global configuration mode:
Command
username name password secret
[DEFAULT@Router /config/]#username
Key Word:
Model Name
Enables PPP encapsulation on an interface.
{chap | Defines the authentication methods supported
and the order in which they are used.
Point-to-point protocol
Assign a priority group to interface
Q(quit)
Set PPP link authentication method
Set PPP network authorization method
Challenge Handshake Authentication Protocol (CHAP)
Microsoft Challenge Handshake Authentication Protocol(MS-CHAP)
Password Authentication Protocol (PAP)
Use an authentication list with this name
Authenticate remote on incoming call only
Configures identification.
- 102 -
Purpose
Purpose
Purpose