58.5. IP Addresses

An IP address consists of two parts: a network ID, which specifies the network on which a host resides, and a host ID, which identifies the host within that network.

58.5.1.

58.5.1.1. IPv4 addresses

An IPv4 address consists of 32 bits (Figure 58-5). When expressed in human-readable form, these addresses are normally written in dotted-decimal notation, with the 4 bytes of the address being written as decimal numbers separated by dots, as in 204.152.189.116.