Ask the Expert

Difference between MS Loopback Adapter and 127.0.0.1

How is using the MS Loopback Adapter any different than using 127.0.0.1?

    Requires Free Membership to View

The loopback address, 127.0.0.1, is a special IP address that any networked computer (Windows, UNIX, or other) will recognize as addressing the local system. The MS Loopback Adapter is a driver that simulates having a physical network card. You can add any IP address to the MS Loopback Adapter and even use it to create routing loops. Since the MS Loopback Adapter is only a piece of software, your traffic doesn't go anywhere. The MS Loopback Adapter is generally used for testing purposes to trick software into thinking a network card is connected when there isn't a network connection available.

This was first published in May 2001

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: