Networks

Ask something
Discussion Locked

Loopback

0 helpful
3 replies

by nelson68 2 views

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

What is the use Loopback? What is the significance of it to Firewall and Network devices.
Thanks for your notable support.

3 replies

by sgt_shultz

i use the loopback address (127.0.0.1) to ping the device to see if the network hardware, drivers and tcpip stack are all functioning properly...does this help?

by alpha-male

The loopback address (127.0.0.1) is a reserved address that implies "have the data returned to me without leaving my computer". When you transmit a packet, it goes to the network card and then it is returned to your application as if it came from another computer. This is useful because it tests the system's functionality and tells you that it is sending and receiving correctly. Pinging the loopback address will let you know if TCP/IP is functioning correctly on your system.

Hope this helps!

This discussion is closed to new replies.