Unanswered Question
Apr 16th, 2010

hello there what is the use of this IP address?

can anyone tell.. pls

I have this problem too.
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Jennifer Halim Fri, 04/16/2010 - 03:53

It's a loopback ip address. If you need to access some application within your host via ip address, you can use that loopback address.

Example: if you are hosting web on a server, and would like to test the website from the host, you can browse to

Jennifer Halim Fri, 04/16/2010 - 04:09

Yes, absolutely correct. Basically just to check connectivity on the port that you open on your host, and making sure you can access it locally.

harisivaji Fri, 04/16/2010 - 08:44


This IP is used for Internal network loop testing in a node.

to check whether your LAN card is working or not

Saravana Boobathy Sat, 04/17/2010 - 02:37

whether only used  or 127.x.x.x the entire network  are used in that testing purpose ?

Richard Burts Sat, 04/17/2010 - 20:32

The loopback address of is a software construct and does not apply to any physical interface. It helps me when I think of it as an address that a device uses when it wants to talk to itself.

While is frequently used, any of the addresses within can be used for this purpose.




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