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IP address validation


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I'm creating a script that will apply an IP address, subnet mask, and a gateway when needed. In the script, we have two static settings, one for two different devices, as well as a setting that resets the ipv4 back to DHCP.

We are wanting to also allow the user to input an IP address through the script and apply it. So far, all is working well.

My issue here is with validation. Is there a simple way to make sure that the input is in the xxx.xxx.xxx.xxx format? No commas, no letters, that sort of thing?

Also, can an input mask be applied? Say something like having a box that has ---.---.---.---, with the user simply filling in the spaces, allowing some spaces to be empty to accommodate an IP address such as 23.123.23.1?

Near as I can tell, I have the rest done. I've searched through the forums for validation, and input masks, and am not really finding anything that I can (or know how to) use. Any help would be greatly appreciated!

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If you want to be able to validate an IP address I started a topic a while back that has a function in it that should do what you're looking for. You can find the thread

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There is an IP address textbox available in KODA to use in your GUI, then you can check whether the string given are digits or not.

I also attempted to do this but its actually harder to accomplish than i thought.

The first digit and last digit may not be 0 as the other middle 0 are allowed to be 0. Also 127.0.0.x may not be given as it is localhost.

To apply a (subnet) mask i did the following;

$arraySubnet = stringsplit($wildcard, ".")
$arrayIP = stringsplit($dstIP, ".")

if $arrayIP[0] <> 4 OR $arraySubnet[0] <> 4 then

  msgbox(16, "Error", "Invalid IPrange.")
else
  for $x = 0 to $arraySubnet[3]
    for $i = 0 to $arraySubnet[4] 
      $dstIP = $arrayIP[1] & "." & $arrayIP[2] & "." & $arrayIP[3] & "." & $arrayIP[4] + $i 
      GUICtrlCreateListViewItem($dstIP, $LVDST)
      ;~  msgbox(1,"", $srcIP)
    Next
    $arrayIP[3] += 1
  Next
EndIf

This works fine because my script reads from a database and the user is not allowed to edit the data... its just an example for subnetting, maybe its useful to you.

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