Add and configure an interface for network address translation

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

To add and configure an interface for network address translation

Open Routing and Remote Access.
In the console tree, click NAT/Basic Firewall.

Where?
- Routing and Remote Access/server name/IP Routing/NAT/Basic Firewall
Right-click NAT/Basic Firewall, and then click New Interface.
In Interfaces, click the interface you want to add, and then click OK.
Do one of the following:
- If this interface connects to the Internet, on the NAT/Basic Firewall tab, click Public interface connected to the Internet and select the Enable NAT on this interface check box. If you want the public interface to be protected by dynamic packet filters, select the Enable a basic firewall on this interface check box.
- If this interface connects to the small office or home network, on the NAT/Basic Firewall tab, click Private interface connected to private network.

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.
You can enable Basic Firewall without NAT for a public interface by clicking Basic Firewall only.
For a dial-up connection to the Internet, select the demand-dial interface that is configured to connect to your Internet service provider (ISP).
For a permanent connection to the Internet, select the permanent interface that is connected to your ISP.

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.