Discover the IP address assigned by DHCP

By default the Acme boards get the IP address from the DHCP server on your LAN this article explains how to discover its IP. If you prefere to assign a static IP address to it read this article: .

Reading the IP address from the Debug Port console

To use this method you need a Debug Port Interface.

Plug the DPI interface on the debug port and run on your PC a terminal emulator like minicom (Linux) or putty (Windows), select the serial port allocated for the DPI interface and configure it as 115200,8,N,1 then type [Enter].

You could see the Linux prompt:


Now type this command:

debarm~# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:04:25:ac:00:46
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::204:25ff:feac:46/64 Scope:Link
          RX packets:2857 errors:33 dropped:0 overruns:0 frame:29
          TX packets:270 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:175887 (171.7 KiB)  TX bytes:12757 (12.4 KiB)
          Interrupt:21 Base address:0x4000

The IP address assigned is indicated as inet addr. In this case it is equal to If no address is listed your DHCP is probably not working well or the netcable is detached.

Getting the IP address from the DHCP server on your LAN

If you have access to the administrator panel of the DHCP on your LAN this is probably the easiest way to discover the IP address assigned to the Acme board. You can identify the IP easily by searching for hostname netusg20 or ariag25 or MAC address that starts with 00:04:25:..:..:...

Using an IP Scanner

Another way to discover your IP address is by using the free utility Angry IP scanner available on this link

This utility is available for Windows, Linux and MAC and can scan all the hosts wired on your LAN getting its hostname as shown below

Using a shell script

A method (although not very fast) to discover your Acme board IP address is using this simple script:

echo "Usage: $0 "
while [ "$i" -lt 254 ]
  ping -c 1 -W 1 "$1.$i" > /dev/null
    if [ "$?" -ne 1 ]
        echo "$1.$i SUCCESS !"
        echo "$1.$i fail"
    i=$(( $i + 1 ))

Save it in a file (for example and enable as executable file with chmod +x then execute providing the base address of your LAN. For example:

./ 192.168.1

It will ping all the addresses from 1 to 254 on your LAN in that way:

Usage: ./ SUCCESS ! SUCCESS ! fail fail fail fail

The timeout on fail condition is 1 second so the test needs max 254 second to scan a C class network.

EUR 8.00

Debug Port Interface

DPI is an USB-to-serial interface to link the Acme boards debug port to a PC USB host port and have access at the Linux system console using a terminal emulator program like minicom, putty, hyperterminal, etc.

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