4

I read that pinging loopback will work if we have TCP/IP suite installed on our computers and don't necessarily have a NIC. So, do we need NIC to ping loopback ip(127.0.0.0) ?

Thanks.

4

No.

Quoted from this answer http://forums.pcper.com/showthread.php?336976-Can-you-ping-127-0-0-1-if-your-NIC-card-is-burned-out

Actually 127.0.0.1 is just the loopback address for TCP/IP protocol stack. It let's you know you have the protocol installed and windows is recognizing it. Has nothing directly to do with a NIC, as you can still do this test with a generic modem in a system without LAN network hardware or access.

Loopback address is a special IP number (127.0.0.1) that is designated for the software loopback interface of a machine. The loopback interface has no hardware associated with it, and it is not physically connected to a network. The loopback interface allows IT professionals to test IP software without worrying about broken or corrupted drivers or hardware.

So that means you do not need a NIC to be able to ping your loopback addresses.

  • So that's actually a "No", isn't it? Or at least "Yes, but not necessarily a physical one..." – user1686 Feb 22 '17 at 8:50
  • @grawity Yes you are right. I forgot to change the Yes to a No. Loopback address is not associated with both physical or virtual nics. – RamonRobben Feb 22 '17 at 9:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.