Extron Electronics VN-COMMANDER - Manual (Page 129)

I456GB issue 8 119
VN-COMMANDER User Guide Appendix A: IP Addressing
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