Ip Address Compare

[ZenKensei]

Group,

Would appreciate any thoughts, feedback or help that anyone can offer on this. I am looking for a way to compare the 2nd and/or 3rd octets of a computers IP Address to a set list and perform an action (Func Call)based based on the comparison. Here is the background. Our internal network has roughly +400 local LAN's across the country, each connected via WAN to 1 of 11 'Core' sites. Each core site and all Local LAN's share the same 2nd octet range of the Class B subnet. Example:

Core Site 1 - IP Address Assignment 11.22.xx.xx

Local LAN 1 - 11.22.33.xx

Local LAN 2 - 11.22.44.xx

Core Site 2 - IP Address Assignment 11.33.xx.xx

Local LAN 4 - IP Address Assignment 11.33.33.xx

Local LAN 5 - IP Address Assignment 11.33.44.xx

Thus, if the workstations local IP Address is 11.22.33.44 it would be connected to 'Core Site 1'.

I guess, more or less, I need a way to parse the second IP octet but I'm not sure what function to use. I would like to keep the process entirely within the AutoIt script if possible, i.e. using the @IPADDRESS variable and comparing to a list of subnets and doing a If Else routine. Just not sure about the parsing of the second octet.

Any thoughts would be appreciated and thanks in advance.

[CyberSlug]

StringSplit is your friend

$ip1 = "11.22.33.xx"
$ip2 = "11.22.44.xx"
$lan1 = StringSplit($ip1, ".")
$lan2 = StringSplit("$ip2", ".")
If $lan1[2] = $lan2[2] Then MsgBox(0,"","The second octets are equal")

You could also use StringInStr to get the position of the dot, then strip off the octets using StringLeft, StringTrimLeft, StringRight, etc.

Hope that helps

Edited March 18, 2004 by CyberSlug