Extron Electronics MGP Pro Series User Guide - Manual (Page 112)

MGP Pro Series • Reference Information 106
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
NNN refers to the network identifier and HHH refers to the host identifier.
Choosing IP Addresses
If the computer and the MGP Pro are directly connected or connected via their own
independent network, follow the guidelines below for choosing the IP addresses.
However, if you intend to connect your computer and MGP Pro to an existing network, you
need to advise the network administrator and ask the administrator to allocate suitable IP
addresses.
On an independent network, it is generally recommended that you use the Class C format
(from 192.0.0.1 to 223.255.255.254).
There are two rules for choosing IP addresses:
• Network identifier must be the same for each IP address
• Host identifier must be unique for each address.
Applying these rules to Class C addresses, the first three decimal values of your IP address
must all be the same while the last value is used to uniquely identify each device.
The following is an example of a
valid Class C addressing scheme:
Device IP Address
Computer running the Windows-based control software 208.132.180.41
MGP Pro Signal Processor 208.132.180.42
NOTE: The host identifiers ( 41 and 42 in the above example) do not need to be
sequential or in any particular order. However, it is recommended that you group the
numbers for simplicity.
The following is an example of an invalid Class C addressing scheme:
Device IP Address
Computer running the Windows-based control software 208.132.180.41
MGP Pro Signal Processor 192.157.180.42
NOTE: The above addresses are invalid because the network identifier for each address
is not the same even though each IP address is unique.
You can perform a test from your computer to check that a device at a particular address is
responding correctly or to determine its address (see
Pinging for the IP Address on the
next page).