Extron Electronics VN-Matrix 200 Series - Manual (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.
VN-Matrix 200 Series • IP Addressing 93