Extron Electronics VN-QUANTUM User Guide - Manual (Page 104)

Appendix A: Guide to IP Addressing VN-QUANTUM User Guide
Page 104 I455GB issue 8
What is an IP Address?
A full explanation of IP addressing is beyond the scope of this user guide. However the following
details will provide you with enough information to get started.
An IP Address is a 32-bit binary number that is used to identify each device on an Ethernet network.
This number is usually represented by four decimal numbers (each in the range 0 to 255) separated
by dots, e.g. 198.123.34.240. This is called ‘dotted decimal notation’.
An IP Address is divided into two parts:
• the ‘network identifier’, and
• the ‘host identifier’.
On a given network each address must have the same network identifier value but have a unique host
identifier. There are, therefore, different ‘classes’ of address which define:
• the range of valid addresses, and
• which parts of the address are used for the network and host identifiers.
The most common IP Address classes are:
Class Name Valid Address Range Identifier Arrangement*
Class A 0.0.0.1 to 127.255.255.254 NNN.HHH.HHH.HHH
Class B 128.0.0.1 to 191.255.255.254 NNN.NNN.HHH.HHH
Class C 192.0.0.1 to 223.255.255.254 NNN.NNN.NNN.HHH
*Where:NNN = Network identifier
HHH = Host identifier