Host Part: portion of the IP address that identifies the host within the subnet.Network Part: portion of the IP address that determines the subnet.Each of them require a unique IP address assigned. ethernet or wireless) while more complex equipments like routers could have several interfaces connected to different networks. Devices such as laptops (also called hosts) usually have only one connected interface (e.g. IP Address: a unique 32 bits number assigned to any device connected to a network.If some of these definitions sound a bit unclear, please keep reading as everything should be explained by the end of this post! IP Address terminologyīefore beginning with the address class explanation, it’s important clarify the terminology that will be used from now on. This latter will take care of converting it in binary for the use in the internal software and electronic circuits. The decimal notation 192.168.1.1 is more intuitive and always used for the manual configurations of a network device. The binary and decimal notations are two different ways of representing the same number, and so the same IP address:ġ1000000.10101000.00000001.00000001 = 192.168.1.1 The IP address of 32 bits is partitioned in 4 octets, so each of them can be converted to decimal notation. The IP Address is represented by a 32 bits binary number such as:Ī long string of bits is not easy to use for a human being, so to make the utilisation easier this number is normally broken into octets that are groups of 8 bits each (as illustrated by the dots inserted into the above binary string). The decimal/binary conversion is fundamental to understand how the network addressing and subnetting operate. They use bits that can only have two mathematical values: ‘0’ and ‘1’. Ever wondered how the IP Address Classes are defined and used in the network devices? If so, keep reading!Įlectronic devices such as computers and routers rely on an internal binary architecture.
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