|  | 1.3 | TCP/IP Addressing
| 1.3.1 | TCP/IP environment
In a TCP/IP environment, end stations communicate with servers or other end stations. This can occur because each node using the TCP/IP protocol suite has a unique 32 bit logical address. This address is known as the IP address. Each company or organization connected to an internetwork is perceived as a single unique network that must be reached before an individual host within that company can be contacted. Each company network has an address; the hosts that live on that network share that same network address, but each host is identified by the unique host address on the network.