Extron-electronics VN-Matrix 200 Series User Manual download pdf (Page 98)

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, for example, 198.123.34.240. This is called “dotted decimal

notation”.

An IP address is divided into two parts:

• The network identifier

• 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

Private and Public Address Ranges

Within each of the above classes are a range of addresses designated as “private”

addresses. These are addresses which should only be used on private local networks and

intranets and cannot be accessed directly from the Internet.

10.0.0.0 – 10.255.255.255

172.16.0.0 – 172.31.255.255

169.254.0.0 –169.254.255.255

192.168.0.0 – 192.168.255.255

All other addresses outside these ranges are considered “public” addresses.

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Extron-electronics VN-Matrix 200 Series User Manual Page 98