Answers:
it is a loop support ip address that loops right subsidise to the computer and go no where on earth. if you hold that on ur computer u should release the ip address and start over. u should really never see that contained by a home Environment. used largely within colossal business to check to kind sure connections work.
in general address starts near 127.
you expect IP address loopback 127.0.0.1
If you are conversation almost loop wager on, this is th interneal grating nouns to any notebook from itself, it make the electrical device compatible internally and externally for network.