Windows - Installing a Loopback Adapter

Windows 95 Wallpaper Version

About

Loopback IP installation on Windows.

When you install a loopback adapter, the loopback adapter assigns the loopback IP address for your computer.

After you install a loopback adapter on your computer, you have at least two network adapters on your computer:

  • your own network adapter and
  • the loopback adapter.

Primary adapter

After the installation of the loopback adapter you must confirm that the adapter network card is in primary position. The software (as Oracle Database, EPM, …) needs to have Windows using the loopback adapter to mimic a fix IP.

The primary adapter is determined by the order in which you installed the adapters: it is the last adapter installed. If you install additional network adapters after you install the loopback adapter, you need :

  • to deinstall the loopback adapter and reinstall it or
  • to change the order in the network manager

In windows 7, you need to choose Layout > Menu Bar, if you don't see the menu

Advanced Network Settings

Checking if a Loopback Adapter Is Installed on Your Computer

To check if a loopback adapter is installed on your computer, run the ipconfig /all command:

SYSTEM_DRIVE:\> ipconfig /all

If there is a loopback adapter installed, you would see a section that lists the values for the loopback adapter. For example:

Ethernet adapter Local Area Connection 2:
  Connection-specific DNS Suffix  . :
  Description . . . . . . . . . . . : Microsoft Loopback Adapter
  Physical Address. . . . . . . . . : 02-00-4C-4F-4F-50
  DHCP Enabled. . . . . . . . . . . : Yes
  Autoconfiguration Enabled . . . . : Yes
  Autoconfiguration IP Address. . . : 169.254.25.129
  Subnet Mask . . . . . . . . . . . : 255.255.0.0

Command Dos Loop Back

Installing a Loopback Adapter

To install a loopback adapter:

Starting the “Add Hardware Wizard”

Windows 2003, 2000 Windows XP

  • Open the Windows Control Panel.
  • Double-click Add Hardware to start the Add Hardware wizard.

Windows 2000 reports on the last network adapter installed. This means that if you install additional network adapters after you install the loopback adapter, you need to remove and reinstall the loopback adapter. The loopback adapter must be the last network adapter installed on the computer.

Windows 7

  • Click the Start menu.
  • Search for “cmd“.
  • Right-click on “cmd” and select “Run as Administrator”
  • Enter “hdwwiz.exe”

Wizard Steps

  • In the Welcome window, click Next.
  • In the Is the hardware connected? window, select Yes, I have already connected the hardware, and click Next.
  • In the The following hardware is already installed on your computer window, in the list of installed hardware, select Add a new hardware device, and click Next.
  • In the The wizard can help you install other hardware window, select Install the hardware that I manually select from a list, and click Next.
  • From the list of hardware types, select the type of hardware you are installing window, select Network adapters, and click Next.
  • In the Select Network Adapter window, make the following selections:
    • Manufacturer: Select Microsoft.
    • Network Adapter: Select Microsoft Loopback Adapter.

Windows Select Network Adapter

  • Click Next.
  • In the The wizard is ready to install your hardware window, click Next.
  • In the Completing the Add Hardware Wizard window, click Finish.
  • If you are using Windows 2003, restart your computer.

Loopback Adapater Settings

  • Right-click My Network Places on the desktop and choose Properties. This displays the Network Connections Control Panel.
  • Right-click the connection that was just created. This is usually named “Local Area Connection 2”. Choose Properties.

Microsoft Loopback Adapter

  • On the General tab, select Internet Protocol (TCP/IP), and click Properties.
  • In the Properties dialog box, click Use the following IP address and do the following:
    • IP Address: Enter a non-routable IP for the loopback adapter. For instance :
      • 10.10.10.10
      • 192.168.x.x (x is any value between 0 and 255)
    • Subnet mask: Enter 255.255.255.0.
    • Leave all other fields empty.
    • Click OK.
  • Click OK.
  • Close Network Connections.
  • Restart the computer (if needed)

Host File

For example:

10.10.10.10   gerardnico.local   gerardnico
#10.10.10.10   yourDNS.com   yourComputerName

Testing

Ping Loopback Adapter

Removing a Loopback Adapter

To remove a loopback adapter:

  • Display System in the Windows Control Panel.
  • In the Hardware tab, click Device Manager.
  • In the Device Manager window, expand Network adapters. You should see Microsoft Loopback Adapter.
  • Right-click Microsoft Loopback Adapter and select Uninstall.
  • Click OK.

Reference





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