Answer

How To Setup A Loopback Adapter On Windows 7

1. Click the Start Menu Orb.
2. Now the Add Hardware wizard should be open.
3. Scroll down the list and select Network Adapters then Click Next.
4. Give the next window a moment to load, and then click Microsoft and Select Microsoft Loopback Adapter then Click Next.

Removing a Loopback Adapter

1. Display System in the Windows Control Panel.
2. In the Hardware tab, click Device Manager.
3. For Microsoft Windows 7, in the Device Manager window, expand Network adapters.
4. For Microsoft Windows 7, right-click Microsoft Loopback Adapter and select Uninstall.
5. Click OK.
6. Restart the computer.

How to Manually Install Adapters on Windows 7

1. Insert the adapter onto your computer.
2. Right click Computer, and then click Manage.
3. Open Device Manager.
4. Click Browse my computer for driver software.
5. Click Let me pick from a list of device drivers on my computer.
6. Highlight Show All Devices and click Next.
7. Click Have Disk.

All you have to do is to simply plug the Gigabit RJ45 loopback into the jack that you want to test or the one you are suspicious about. If the link LED on your switch is active, it means that the connection is operating perfectly.

1. Open the Device Manager, right-click My Computer > select Properties > Hardware tab:
2. In the Device Manager > scroll down and expand Network Adapters > select Microsoft Loopback Adapter:
3. Right-click on the Microsoft Loopback Adapter and select uninstall:

Network Adapter: Select Microsoft Loopback Adapterfor Microsoft Windows 7 and Microsoft KM-TEST Loopback Adapterfor Microsoft Windows Server 8.1 and later releases. 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.

By using a loopback adapter, the messages get send much further through the stack, enabling programs like wireshark to capture the packets (and enabling you to analyze the packets) Share Improve this answer Follow answered Jan 7 ’10 at 15:39

On the General tab, select Internet Protocol (TCP/IP), and click Properties. IP Address: Enter a non-routable IP for the loopback adapter. For instance : Subnet mask: Enter 255.255.255.0. Leave all other fields empty. Click OK. Click OK. Close Network Connections. Display System in the Windows Control Panel.

Having the Loopback Adapter installed and configured on a machine that used DHCP prior to installing Oracle products will save you a lot of headache when the IP or host name of the machine changes when you change networks.