WebColour - Web Based LED Control
User Manual
7.0 - 23 November 2020
Page 5 of 25
+617 3899 1267
Determining the IP Address
If using a system that is NetBIOS enabled, the IP Address of the WebColour can be determined by pinging
the unit name.
To do this, open a command prompt window, and enter the command “ping unitname”. The result will
include the IP Address of the WebColour. An example of this is given in Figure 1, where the Unit Name is
webcolour and the returned IP address is 192.168.0.8.
If, however you are not using a NETBIOS enabled system or you have forgotten the Unit Name, there are
still options. Probably the best is the use of a broadcast ping and arp commands.
To do this, you will need to know your computers IP address and netmask. In a command prompt, you then
need to ping broadcast address. The broadcast address is the IP address with 255 in the positions where
there are 0’s in the netmask. For example, on a computer with an IP address of 192.168.0.23 and a netmask
of 255.255.255.0, the broadcast address is 192.168.0.255. Note that it may look like there is no response to
the ping command.
The next step is to enter the command “arp –a”
. This will provide a list of all the IP addresses that the
computer now knows (after the broadcast ping). One of these addresses will be the WebColour.
Unfortunately, each returned address must be tested (by attempting to access it in the web browser) to
determine which is the WebColour. This command sequence is shown for the above example in Figure 2.
C:\Users\Craig.DIGILIN>ping webcolour
Pinging webcolour [192.168.0.8] with 32 bytes of data:
Reply from 192.168.0.8: bytes=32 time<1ms TTL=255
Reply from 192.168.0.8: bytes=32 time<1ms TTL=255
Reply from 192.168.0.8: bytes=32 time<1ms TTL=255
Reply from 192.168.0.8: bytes=32 time<1ms TTL=255
Ping statistics for 192.168.0.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
Figure 1. Using the Ping Command to determine the IP Address.
