Extron-electronics ES3610_11 User Guide Manual de usuario descargar pdf (Pagina 52)

Appendix A: Guide to IP Addressing ES3610/11 User Guide

Page 52 I447GB issue 6

Choosing IP Addresses

If your RGB ADAPTER(s) and control PC are directly connected, or connected via their own

independent network, then follow the guidelines below for choosing your IP Address(es).

However, if you intend connecting your RGB ADAPTER (s) and control PC to an existing network, you

will need to advise the network administrator and ask them to allocate suitable addresses to you.

On an independent network you can (in theory) use just about any addresses you wish. However, it is

generally recommended that you use the Class C format (i.e. from 192.0.0.1 up to 223.255.255.253).

Remember that there are two rules for choosing IP Addresses:

• the network identifier must be the same for each address, and

• the host identifier must be unique for each address.

Applying these rules to Class C addresses, it can be seen that the first three decimal values of your IP

Addresses 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

Device 1 208.132.180.41

Device 2 208.132.180.42

Device 3 208.132.180.43

NOTE: The host identifiers (e.g. 41, 42, and 43 in the above example) need not 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

Device 1 208.132.180.41

Device 2 192.157.180.42

Device 3 209.100.123.43

NOTE: These are invalid because the network identifier for each address is not the same, even

though each IP Address is unique.

You can use the Ping command from your computer to check that a device at a particular address is

responding correctly (see page 54).

Subnet Mask

The Subnet Mask is another 32-bit binary number that is used to ‘mask’ certain bits of the IP Address.

This provides a method of extending the number of network options for a given IP Address. It works

by allowing part of the host identifier to be used as a ‘subnet identifier’. Any further explanation of this

facility is not relevant here.

However, it is important that you set the correct value for the Subnet Mask. The basic values depend

on the class of IP Address being used:

Class Name Subnet Mask

Class A 255.0.0.0

Class B 255.255.0.0

Class C 255.255.255.0

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 58 59

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Extron-electronics ES3610_11 User Guide Manual de usuario Pagina 52