Stands for Internet Protocol, a numerical address assigned to each device connected to a computer network. IPv4 defines an IP address as a 32-bit number divided into four 8 bit octets, and is usually expressed as a dotted decimal number each ranging from 1 to 254. Eg
192.168.1.2
IPv6 uses eight 16-bit hexadecimal numbers separated by a colon. Eg:
fdaa:bbcc:ddee:0000:71a4:c9d5:57d4:ec99