A. A. The information below assumes you have already changed the IP address of the machine ( Start - Settings - Control Panel - Network - Protocols - TCP/IP - Properties) and have rebooted. The scenario below assumes the old IP address was 200.200.200.3 and the new is 200.200.200.8

  1. We need to configure a second IP address for the network card
    - Start the Network Control Panel Applet ( Start - Settings - Control Panel - Network)
    - Click on the Protocol tab
    - Select TCP/IP and click Properties
    - Click Advanced and click Add
    - Enter the old IP address, e.g. 200.200.200.3 and click Add
    - Click OK until you are back at the Control Panel
    - Reboot
  2. Start the DNS Manager (Start - Programs - Administrative Tools - DNS Manager)
    - Right click the "Server List" and select New Server
    - Enter the new IP address, e.g. 200.200.200.8 and click OK
    - Select the old IP address, e.g. 200.200.200.3 and right click
    - Select "Delete Server" from the context menu and click Yes to confirm
  3. While in the DNS Manager, update the record for this server
    - Select the IP address of the DNS server, e.g. 200.200.200.8, select the domain name, e.g. SAVILLTECH.COM
    - Double click the entry for the server and update the IP address, i.e. it would have had 200.200.200.3 to bugsbunny, change to 200.200.200.8
    - Click OK
  4. Now we will delete the secondary IP address we added
    - Start the Network Control Panel Applet ( Start - Settings - Control Panel - Network)
    - Click on the Protocol tab
    - Select TCP/IP and click Properties
    - Click Advanced and select the address, e.g. 200.200.200.3 and click Remove
    - Click OK until back at control panel
    - You will need to reboot at some point to remove the 200.200.200.3 from being active

Update all the clients to use the new DNS server IP address.

The above procedure is the most complete way, however it should still work if you only perform steps 2 and 3.