The method to use is thus :

IP a.b.c.d => 
convert to 32-bit int => 
d 
+ (c * 256) 
+ (b * 256 * 256) 
+ (a * 256 * 256 *256)
-----------------------
= 32-bit representation of IP Address.
[download]

This shouldn't be too hard to do in Perl, give me a bit of time to work it out :)

UPDATE: Nevermind, alfie's done it above.

Azatoth a.k.a Captain Whiplash

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