Internet Protocol Addressing

• The IP address scheme is integral to the process of routing IP datagram’s through an internet work.
• Each IP address has specific components and follows a basic format.
• These IP addresses can be subdivided and used to create addresses for sub networks.
• Each host on a TCP/IP network is assigned a unique 32-bit logical address that is divided into two main parts which is the network number and the host number.
• The network number identifies a network and must be assigned by the Internet Network Information Center (InterNIC) if the network is to part of the Internet.
• An Internet Service Provider (ISP) can obtain blocks of network addresses from the InterNIC and can itself assign address space as necessary.
• The host number identifies a host on a network and is assigned by the local network administrator.