Select the L2TP over IPSec interface

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To select the L2TP over IPSec interface

Open Routing and Remote Access.
In the console tree, click General.

Where?
- Routing and Remote Access/server name/IP Routing/General
In the details pane, click the interface on which you want to enable L2TP over IPSec filtering, scroll to the IP Address column, and write down the IP address assigned to the interface.
Right-click the interface, and then click Properties.

Notes

To perform this procedure, you must be a member of the Administrators group. As a security best practice, consider using the Run As command rather than logging on with administrative credentials. If you have logged on with administrative credentials, you can also open Routing and Remote Access by clicking Start, clicking Control Panel, double-clicking Administrative Tools, and then double-clicking Routing and Remote Access. For more information, see Default local groups, Default groups, and Using Run as.
All four L2TP over IPSec input and output filters work together to complete L2TP over IPSec filtering. The L2TP over IPSec filtering is not secure unless all four filters are set correctly.
If the four L2TP over IPSec filters are the only filters that are configured, then the only traffic that is allowed in and out of the interface is L2TP over IPSec traffic to and from the L2TP server and L2TP client on the computer running Routing and Remote Access.

Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.