Adding Additional IP Addresses to a Single Network Adapter

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Article ID: 156772 - View products that this article applies to.
This article was previously published under Q156772
If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:
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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
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SUMMARY

This article describes a method to allow more than one IP address when you are using Windows on a computer with a single network adapter.

NOTE: This configuration may or may not work on your computer, and is not supported by Microsoft Product Support Services.

MORE INFORMATION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To add additional IP addresses, use Registry Editor to edit the registry. Go to the following registry section:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans\
There should be multiple subkeys with the value 0000, 0001, and so on. If the computer has only one network adapter, click the 0000 entry. You should then see a value named IPAddress and a value named IPMask.

For each additional IP address, add to the two values.

The IPAddress value should contain the current IP addresses. This value is a string of IP addresses separated by commas with no embedded spaces. The IPMask value should be a list of comma-separated subnet masks with no embedded spaces. You must add a mask value for each IPAddress. When you are done, quit Registry Editor and then restart the computer.

Properties

Article ID: 156772 - Last Review: January 19, 2007 - Revision: 2.1
APPLIES TO
  • Microsoft Windows Millennium Edition
  • Microsoft Windows 98 Second Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95
Keywords: 
kbfaq kbhowto kbnetwork KB156772

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