A type of network adapter address used when multiple networks are linked. Known as a Layer 3 address, in IPv4 it is a 32-bit binary number with groups of 8 bits separated by a dot. This numbering scheme is also known as dotted-decimal notation. Each 8-bit group represents numbers from 0 to 255. An example of an IPv4 IP address is 113.19.12.102. Also see IPv4 and IPv6.