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Configure Windows to use static and dynamic IP at the same time
To configure your computer (tested on Windows 2000, Windows XP and Windows Server 2003) to use both a DHCP obtained IP address and a statically configured IP address follow these steps:
Configure your computer to use DHCP
1. Right-click My Network Places and choose Properties.
2. On the NIC that is (usually) labeled as Local Area Connection - right-click and choose Properties.
![](xp_obt_aut.gif)
3. Select TCP/IP (make sure you don't remove the check mark accidentally) and press the Properties button.
![](xp_obt_aut1.gif)
4. Make sure you have "Obtain Automatically" selected.
![](xp_obt_aut2.gif)
5. You can verify your settings by running ipconfig /all at a command Prompt:
![](xp_mult_ip3.gif)
6. Ok all the way out.
Add a second (or third and so on), static, IP address
1. Click Start and choose Run. Enter Regedit and press Enter.
Note: On Windows 2000 and NT you need to run Regedt32 instead.
2. Navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlset\Services\Tcpip\Parameters\Interfaces\{B003AD4A-B6DB-44FD-9741-CBA3C51B6498}
(actual GUID of the NIC may vary, select the one that represents your own NIC (from step 2 above)
3. Select the IPAddress key and double click it.
4. In the Edit Multi String dialog box enter a second (and third and so on) IP address. Make sure you enter each IP on a separate line. Click Ok.
![](xp_mult_ip.gif)
5. Select the SubnetMask key and double click it.
6. In the Multi String dialog box enter a second (and third and so on) Subnet Mask. Make sure you enter each Subnet Mask on a separate line. Click Ok.
![](xp_mult_ip1.gif)
7. Close the registry editor.
8. Go back to your network properties, right-click your NIC and select Disable.
![](xp_disable_net.gif)
9. Right-click you NIC and select Enable.
![](xp_enable_net.gif)
10. Verify your settings by running ipconfig /all at a Command Prompt:
![](xp_mult_ip4.gif)
Done!
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