Lonk's example is missing an "in".. $ip is the var that enumerates the elements of the $ipList array.

You might want to try using InSubnet()
 Code:
If InSubnet('192.168.12.243', '192.168.8.0/21') 
  'Is in subnet!' ? 
EndIf

or even better, the IsInSubnet(), which takes an array of subnets and tells you which subnet a given IP is in..

Glenn
_________________________
Actually I am a Rocket Scientist! \:D