How do I assign multipled IP addresses to a single NIC?

A. It is possible to assign more than one IP address to a single NIC (Network Interface Card). To configure extra IP addresses under NT 4.0 perform the following:

  1. Right click on Network Neighborhood and select Properties (if you are unable to do this start the Network Control Panel applet via control panel)
  2. Select the Protocols tab
  3. Select 'TCP/IP Protocol' and click the Properties button
  4. Select the 'IP Address' tab and you will see your normal IP address. Click the Advanced button at the bottom of the dialog
  5. Select the Adapted and click Add under the IP addresses section
  6. Enter the new IP address and subnet mask. Click Add
    Click here to view image
  7. Click OK to the advanced dialog
  8. Click Apply then OK to the TCP/IP dialog
  9. Close all other dialogs
  10. Reboot the computer

Under Windows 2000 the procedure is the same except to get the TCP/IP protocol properties you need to:

  1. Right click on "My Network Places" and select Properties
  2. Right click on "Local Area Connection" and select Properties
  3. Select "Internet Protocol (TCP/IP) and select Properties
  4. The procedure is then as above except the reboot is not necessary

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