What is IP Address?
An IP address short for Internet Protocol address is a unique number consisting of 4 parts separated by dots, e.g. 126.96.36.199
Every machine that is on the Internet has a unique IP address. If a machine does not have an IP number, it is not really on the Internet. Most machines also have one or more Domain Names that are easier for people to remember.
The IP address acts as a locator for one IP device to find another and interact with it. It is not intended, however, to act as an identifier that always uniquely identifies a particular device.