To configure server 2003 as a NAT server
Follow these steps to accomplish the task
1.On the Administrative Tools menu, click
Routing and Remote Access.
2.In the Routing and Remote Access, expand your
server_name (where
server_name is the name of the server that you want to configure) and then expand
IP Routing in the left pane.
3.Right-click General and then click New Routing Protocol.
4.Click to select the
NAT/Basic Firewall check box and then click
OK.
5.Right-click NAT/Basic Firewall in the left pane and then click
New Interface.
6.Click the interface that represents your internal network interface and then click
OK.
7.In the Network Address Translation properties, click
Private interface connected to private network and then click
OK.
8.Right-click NAT/Basic Firewall in the left pane and then click
New Interface.
9.Click the interface that represents your external network interface and then click
OK.
10.In Network Address Translation properties, click
Public interface connected to the Internet. For a dial-up connection to the Internet, select the demand-dial interface that is configured to connect to your ISP. Click to select the
Enable NAT on this interface check box and then click OK.
The NAT server can automatically assign IP addresses to internal network clients. You may want to use this functionality if you do not have a DHCP server that is already assigning addressing information to clients on the internal network.
To Configure NAT Server to Assign IP Addresses and Perform Proxy DNS Queries
Follow these steps in order to accomplish the task
1.Right-click NAT/Basic Firewall in the left pane and then click
Properties.
2.Click the Address Assignment tab and then click to select the
Automatically assign IP addresses by using the DHCP allocator check box.
3.In the
IP address box, type a network ID.
4.In the
Mask box, type a subnet mask.
5.You can also exclude IP addresses from the range you are defining so that the excluded IP addresses can be assigned to specific computers on the private network by clicking
Exclude and adding IP addresses.
6.Click the Name Resolution tab and then click to select the
Clients using Domain Name System (DNS) check box.
7.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.
8.In the Demand-dial interface box, click the interface to dial.
9.Click
Apply and then click
OK.
To Configure a Windows Server 2003-Based Computer to Use a NAT Server
Follow these steps in order to accomplish the task
1.Open Network Connections, right click
Local Area Connection and click
Properties.
2.Click
Internet Protocol (TCP/IP) and Click
Properties.
3.In the
Default gateway box, type the internal IP address of the NAT server and your IP address with Mask.
4.Click OK, click OK, and then click Close.
If your computer receives its IP address from a Dynamic Host Configuration Protocol (DHCP) server, click Advanced, click the IP Settings tab, under Gateway click Add, type the internal IP address of your NAT server, click Add, click OK.