RE: can not direct inside network internet request to outside network
From: Shilpa Sinha [MSFT] (v-shilsi_at_online.microsoft.com)
Date: 09/27/04
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Date: Mon, 27 Sep 2004 07:37:36 GMT
Hi
Maybe this will help if you missed out something:
How To Configure the NAT Service in Windows 2000
IN THIS TASK
==============
Configure Windows 2000 RRAS NAT Server
Configure RRAS NAT Service To Assign IP Addresses And Perform Proxy DNS
Queries
SUMMARY
=========
This step-by-step article describes how to configure the NAT service in
Windows 2000. The Windows 2000 Routing and Remote Access service includes a
Network Address Translation (NAT) routing protocol. When the NAT protocol
is installed and configured on the RRAS server, internal network clients
with private IP addresses can access the Internet through the external
interface of the NAT server.
Configure Windows 2000 RRAS NAT Server
=======================================
When internal network clients send a request for the Internet, the NAT
protocol driver intercepts the request and forwards the request to the
destination Internet server. All requests appear to come from the external
IP address of NAT server. This effectively hides your internal IP addresses
scheme.
To configure the Windows 2000 RRAS NAT server:
1. On the Administrative Tools menu, click Routing and Remote Access.
2. In the Routing and Remote Access console, expand your server name and
then expand the IP Routing node in the left pane of the console.
3. Right-click the General node, and then click New Routing Protocol.
4. In the New Routing Protocol dialog box, click to select the Network
Address Translation (NAT) protocol, and then click OK.
5. Right-click the Network Address Translation (NAT) node in the left
pane, and then click New Interface.
6. Select the interface that represents your internal network interface,
and then click OK.
7. In the Network Address Translation Properties dialog box, click the
Private interface connected to private network option, and then click OK.
8. Right-click the Network Address Translation (NAT) node in the left
pane, and then click New Interface.
9. Select the interface that represents your external network interface,
and then click OK.
10. In the Network Address Translation Properties dialog box, click the
Public interface connected to the Internet option. Click to select the
Translate TCP/UDP headers (recommended) check box. This is required if you
have only a single IP address bound to the external interface. Click OK.
The Windows 2000 NAT server can automatically assign IP addresses to
internal network clients. This is a viable option if you do not have a DHCP
server already assigning addressing information to clients on the internal
network.
Configure RRAS NAT Service To Assign IP Addresses And Perform Proxy DNS
Queries
=======================================================================
The NAT server can also perform DNS queries on the behalf of NAT clients.
The RRAS NAT server resolves the Internet host name that is included in the
client request and then forward the IP address to the client.
To configure the RRAS NAT service to assign IP addresses and perform proxy
DNS queries on the behalf of internal network clients:
1. Right-click the Network Address Translation (NAT) node in the left
pane, and then click Properties.
2. In the Network Address Translation (NAT) Properties dialog box, click
the Address Assignment tab. Click to select the Automatically assign IP
addresses by using DHCP check box. You can type a network ID and subnet
mask in the IP address and Mask boxes.
3. Click the Name Resolution tab. Click to select the Clients using Domain
Name System (DNS) check box. If you use a demand-dial interface to connect
to the Internet, click to select the Connect to the public network when a
name needs to be resolved check box. Click the interface to dial in the
Demand-dial interface box.
4. Click Apply, and then click OK.
NOTE: After you follow these basic configuration steps, internal network
clients are able to access servers on the Internet.
The information in this article applies to:
o Microsoft Windows 2000 Server
Reference Link:
================
http://support.microsoft.com/default.aspx?scid=kb;en-us;310357&Product=win20
00
Shilpa Sinha
This posting is provided "AS IS" with no warranties, and confers no rights.
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