NetworkID and HostID

Every IP address describes the networkID and hostID.

NetworkID is used to recognize the systems which are located on the similar physical network. Whole the systems on the network must have the similar networkID. It should be unique.

NetworkID is 130. 56. 30.57

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A HostID is used to identify a workstation, server, router or other TCP/IP hosts inside a network. It is used to uniquely identify every machine on the network. That has its own unique hostID for each and every machine

Example

HostID is 130.56.30.57

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Every IP address is 32 bits long and is composed of four 8 bit fields known as octets. The octet represents a decimal in the range 0-255.This format is known as dotted decimal notation.

Binary Format                                                     Dotted Decimal Notation

10000011 01101011 00000011 00011000                      131.107.3.24