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Published on 04.10.08 by Brent Trahan

Assign Two IP Addresses to One Network Connection

Learn how to assign two sets of IP settings to one network connection in Windows Vista.

Let’s say you have a laptop that you use at work and at home. When you use your laptop at work it uses a static IP address assigned by your IT department. When you go home your network uses a dynamic IP address assigned by a router.

This guide shows you how to assign two sets of IP settings to one network connection so that you don’t have to manually change these settings at each location.

Assign Two IP Settings to One Network Connection

  1. Click the Start orb and then open the Control Panel.
  2. Click Classic View on the left side of the Control Panel.
  3. Open the Network and Sharing Center.
  4. Click Manage Network Connections on the left side of Network and Sharing Center.
  5. Double-click the network connection you want to assign two IP settings to.

  6. Click Properties.

  7. Double-click Internet Protocol Version 4.

  8. We’ll assume these settings will be the default or connection one. In my case it is the DHCP settings for my home network.

  9. To add a second set of IP settings click the Alternate Configuration tab.
  10. Set the second set of IP settings for this network connection. In my case it is a static IP address give by the IT department.

  11. Click OK in the Internet Protocol Version 4 window.
  12. Click OK in the Network Connection Properties window.
  13. Click Close in the Network Connection Status window.

Now the network connection is set up with two sets of IP settings (or two IP addresses).

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3 Responses to “Assign Two IP Addresses to One Network Connection”

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  1. Li says:

    I have exactly the same situation as you described and I did exactly as you did.

    However, the brilliant windows vista doesn’t know when to switch from dynamic IP to static IP.

    Is there anyway to force visa to use the network configuration that I specified?

  2. Ravi says:

    I was using the same configuration till recently when it worked fine. Of late for the past three days it does not recogize the alternate setting and refuses to switch over. So in order to get the internet facility at work I manually switch the IP. Any solutions

  3. Tom says:

    This is what is supposed to happen. However, Windowsd 7 does not immediately use the alternate configuration but first uses APIPA and it takes 5 minutes or so before it finally uses the alternate configuration.
    ANyone have a solution?

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