Network Address Translation (NAT)

With network address translation in Windows 2000, you can configure your network to share a single ip address to the Internet

Sample Network

Enable NAT (Network Address Translator)

Preparation

1. Your Windows 2000 Server should have two network adapter and be assigned a private ip address and a global ip address.


2. For your convenience, you can change network adapter captions as below

Network router

1. Open [Routing and Remote Access], right click your server and select [Configure and Enable Routing and Remote Access]


2. Click [Next]


3. Select [Network router] and click [Next]


4. Click [Next]


5. Select [No] and Click [Next]


6. Click [Finish]


7. Service is starting

Network Address Translation (NAT)

1. Select [IP Routing] -> [General], right click and select [New routing Protocol]


2. Select [Network Address Translation (NAT)] and click [OK]


3. Select [IP Routing] -> [Network Address Translation (NAT)], right click and select [New Interface]


4. Select [Private LAN] interface and click [OK]


5. Select [Private interface connected to private network] and click [OK]


6. Select [Network Address Translation (NAT)], right click and click [New Interface]


7. Select [Public interface connected to the Internet], check [Translate TCP/UDP headers (recommended)]


8. Click [Address Pool] tab, click [Add] button and enter same the external adapter ip address to [Start address] and [End address]


9. Click [Reservations...]


10. Enter the external ip address to [Reserve this ublic IP address] text box. Enter the private network address to [For this computer on the private network]. Click [OK]


11. Click [OK]

Test

1. Open [Command Prompt] at client computer and trace route to an external server



C:\WINDOWS\system32>tracert www.grape-info.com

Tracing route to www.grape-info.com [202.144.128.220]
over a maximum of 30 hops:

  1    <1 ms     1 ms    <1 ms  SERVER1 [192.168.0.1]
  2     2 ms     1 ms     1 ms  gw.hoge.com [202.144.158.206]
  3   231 ms   395 ms   405 ms  u-gw1.hoge.com [202.144.159.195]
  4   582 ms   420 ms   416 ms  e0-0.tpu-br2.hoge.com [202.144.129.2]
  5   208 ms   280 ms   403 ms  w3ext.grape-info.com [202.144.128.220]

Trace complete.

Web www.grape-info.com