That is, if a user is pinging a loopback address, they’ll get the reply from the same TCP/IP stack running on their computer. Whenever a protocol or program sends any data from a computer with any loopback IP address, that traffic is processed by a TCP/IP protocol stack within itself, i.e., without transmitting it to the network. These loopback addresses are always accessible so that the user can use them anytime for troubleshooting TCP/IP. It mocks the TCP/IP server or TCP/IP client on the same system. TCP/IP protocol manages all the loopback addresses in the operating system. The loopback address 127.0.0.1 is generally known as localhost. The loopback addresses are built into the IP domain system, enabling devices to transmit and receive the data packets.
#LOOPBACK ADDRESS IPV6 HOW TO#
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