IPv4

What is IPv4?

IPv4, or Internet Protocol version 4, is the fourth iteration of the Internet Protocol and is the most widely used protocol for routing data packets across the Internet. It is a fundamental communication protocol that enables devices to communicate with each other over a network. IPv4 uses a 32-bit address scheme allowing for a total of 4.3 billion unique addresses, which are typically represented in decimal format as four octets separated by periods (e.g. 192.168.1.1).

Each device connected to the internet, such as computers, smartphones, and servers, is assigned a unique IPv4 address to identify and communicate with other devices on the network. These addresses are essential for routing data packets to their intended destinations, ensuring that information is transmitted accurately and efficiently across the internet.

Despite its widespread use, the limited number of available IPv4 addresses has led to the development and adoption of IPv6, which uses a 128-bit address scheme and provides a vastly larger pool of unique addresses. However, IPv4 continues to be used extensively and is still the dominant protocol for Internet communication.