IPv4

IPv4 is essentially the most broadly used model of the Internet Protocol. It defines IP addresses in a 32-bit format, which seems to be like 123.123.123.123. Each three-digit part can embody a quantity from 0 to 255, which implies the full variety of IPv4 addresses out there is 4,294,967,296 (256 x 256 x 256 x 256 or 2^32).

Each laptop or device linked to the Internet will need to have a novel IP tackle in an effort to talk with different programs on the Internet. Because the variety of programs linked to the Internet is rapidly approaching the variety of out there IP addresses, IPv4 addresses are predicted to expire quickly. When you think about that there are over 6 billion folks on the planet and many individuals have a couple of system linked to the Internet (for instance, at house, faculty, work, and many others.), it isn’t stunning that roughly 4.3 billion addresses will not be sufficient.

To resolve this downside, a brand new 128-bit IP system, referred to as IPv6, has been developed and is within the means of changing the present IPv4 system. During this transitional course of from IPv4 to IPv6, programs linked to the Internet could also be assigned each an IPv4 and IPv6 tackle.