What is IPv4?
IPv4 (Internet Protocol version 4) is the IP protocol version that runs on the TCP/IP network layer. This protocol is responsible for transmitting data blocks from the sending host to the receiving host, which are identified by IP addresses. The view of IPv4 address entry is four decimal numbers ranging from 0 to 255, separated by dots. The length of the subnet mask can also be indicated through a slash. IPv4 is the fourth and most used version of IP. Currently, the new version of the Internet Protocol IPv6 is being actively used.