Extron Electronics VN-QUANTUM User Guide - Manual (Page 107)

VN-QUANTUM User Guide Appendix A: Guide to IP Addressing
I455GB issue 8 Page 107
Using the ‘Ping’ Utility to Test Communications
You can test for communications between a Windows computer and another device on the same
network by using the Windows Ping utility.
From the Windows Desktop of the computer, click on the Start button, and select Run from the
pop-up menu.
The Run dialog box will appear.
In the Open box, type in the following command:
ping xxx.xxx.xxx.xxx –t
where xxx.xxx.xxx.xxx is the IP Address of the device (e.g. a VN Processor) that you want to test.
Click on the OK button or press the Enter key.
A text window will appear showing a series of response messages; these are explained below.
To stop the ping utility, press Ctrl + C on the keyboard.
Response Messages
When you run the Ping utility, it will display a series of response messages, which you can use to
determine the state of the communications link. For example, if you have ‘pinged’ a VN Processor
with the address 208.132.180.48, you should get a message similar to the following:
Reply from 208.132.180.48: bytes=32 time=2ms TTL=32
This is the correct response which indicates that the device at the specified address is communicating
correctly. Note that the response ‘time’ value may vary according to network traffic.
If you get the message...
Request timed out.
...this indicates that there has been no response from the specified address. Either the processor is
not receiving data from the computer or not sending data back. Check that the VN Processor is
powered-up and set to the same address that you ‘pinged’. Also, check that you are using the correct
type of connecting cables (i.e. ‘straight through’ or ‘crossover’) and that they are not damaged or
faulty.
If you get the message...
Reply from 208.132.180.48: Destination host unreachable.
…this indicates that the IP Address of the computer is not in the same ‘class’ (or subnet) as that of the
VN Processor. Check that the SubNet Mask on both the computer and the VN Processor are set to
the same value (see page 106). Also check that both IP Address are within the correct range for the
chosen class and are compatible (see page 105).