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IPV4 Address
IPV4 Addresses The IP layer of the TCP/IP protocol suite to identify the connection of each device to the Internet is called the Internet address or IP address. An IPv4 address is a 32-bit address that uniquely and universally defines the connection of a host or a router to the Internet. IPv4 addresses are unique in the sense that each address defines one, and only one, connection to the Internet. If a device has two connections to the Internet, via two networks, it has two IPv4 addresses. IPv4 addresses are universal in the sense that the addressing system must be accepted by any host that wants to be connected to the Internet. Address Space An address space is the total number of addresses used by the protocol. If a protocol uses b bits to define an address, the address space is 2 b because each bit can have two different values (0 or 1). IPv4 uses 32-bit addresses, which means that the address space is 2 32 or 4,294,967,296 (more than four billion devices could be ...
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