When I search through the internet i found some topics related to IP and I am unable to found the answer, please tell me ,What is meant by looping back the IP addresses....
What is......
I assume you are referring to loop back IP address. If not, excuse my ignorance 
Loop back IP address 127.0.0.1 is used to test the TCP/IP protocol stack on your network interface (NIC/wireless). It is an IP address which you will never use in practical scenarios. A successful ping to this IP address indicates that TCP/IP is functional on your computer's network interface.
Loop back IP address 127.0.0.1 is used to test the TCP/IP protocol stack on your network interface (NIC/wireless). It is an IP address which you will never use in practical scenarios. A successful ping to this IP address indicates that TCP/IP is functional on your computer's network interface.
C
Loopback IP address is a special kind of number(127.0.0.1) that is designed to check whether your new local server.*Local host) working or not. Hence You can text, configure your local server using the loopback IP address.
@kev.ved ,clydebrown Is it means that if a computer have a looping back addresses is it acts like a server???
Nopes