Network Router User Manual

Configuring L2TP Services

3-8

303532-A Rev 00

Enabling Tunnel Authentication

To prevent unauthorized users from accessing the corporate network, you can

enable tunnel authentication. During tunnel negotiation, the LAC sends its tunnel

authentication password to the LNS. If the password is not recognized by the

LNS, authentication is unsuccessful and the LAC cannot create the tunnel.

For more information about tunnel authentication, see “Tunnel Authentication

” on

page 1-12.

To enable tunnel authentication, complete the following tasks:

Note:

If you are using the Password Authentication Protocol (PAP) for PPP

authentication, do not enable tunnel authentication.

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,

choose

Protocols

The Protocols menu opens.

2. Choose

. The IP menu opens.

3. Choose

L2TP

. The L2TP menu opens.

4. Choose

Tunnel Authentication

. The L2TP Tunnel Security List window

opens.

5. Select an LNS entry from the list.

6. Set the following parameters:

• Enable Tunnel Authentication

•

Tunnel Authentication Password

Click on

Help

or see the parameter

descriptions on page A-9

7. Click on

Done

. You return to the Configuration Manager

window.