IP is originally an integer.

IP is a 32-bit binary number. When converted into decimal, it is four groups of numbers, and there are no three groups. The middle point is not a decimal point, but is used to distinguish the level. For example, through IP, you can know how many digits represent the network number. Several digits represent the host.

The IP address is a unified address format provided by the IP protocol. It assigns a logical address to each network and each host on the Internet to shield the differences in physical addresses.