Ip Addressing

Internet Protocol Addressing

Communication over the internet is assigned an IP address that uniquely identifies the device and distinguishes it from other computers on the Internet. IP address is an identifier for a computer or device on a TCP/IP network.
An IP address consists of two parts, one identifying the network and one identifying the node, or host. All the nodes on a given network share the same network prefix but must have a unique host number.

Five IPv4 Classes:

Class A Network

Here, binary address starts with 0, so the decimal number can be anywhere from 1 to 126. Eg: 102.168.212.226, where “102” identifies the network and “168.212.226” identifies the host.

Class B Network

The binary address starts with 1 0, so the decimal number can be anywhere from 128 to 191. The number 127 is reserved for loopback. Eg: 168.212.226.204 where “168.212” identifies the network and “226.204” identifies host.

Class C Network

Out of 32 bits, first 24 bits identify the network and the remaining 8 bit indicates the host within the network. Eg: “192.168.0.172” where “192.168.0” identifies the network and “172” identifies the host.

Class D Network

Binary address starts with 1 1 1 0, therefore the decimal number can be anywhere from 224 to 239. This class supports multicasting.

Class E Network

Binary address starts with 1 1 1 1, therefore the decimal number can be anywhere from 240 to 255. This call network is used for experimentation.