1
vote
1answer
190 views

How far a loopback packet sent from an application layer goes on TCP/P layers?

Assuming that I want to check if my ethernet card is working fine, if I send a ping from a cmd on Windows, how far the sent packet will go? I mean, the packet will fall down over all the TCP/IP layers ...
3
votes
1answer
902 views

Pinging localhost versus pinging 127.0.0.1

If I ping localhost, I receive a reply from ::1 which IIRC is the IPV6 loopback address. If I ping 127.0.0.1, I receive a reply from 127.0.0.1 as expected. Why is there a difference when hostname ...
0
votes
1answer
785 views

What protocols (and thus layers) are involved with pinging the loopback IP address?

RFC 3330 states, 127.0.0.0/8 - This block is assigned for use as the Internet host loopback address. A datagram sent by a higher level protocol to an address anywhere within this block should loop ...