aggregating single IP addresses into CIDRs?

[Gerald Jones]

Is there a perl way to take a list of IP unordered addresses in dotted quad
format and group them into more compact CIDR format?

TIA,
Gerald.

 

[Josef Moellers]

Is there a perl way to take a list of IP unordered addresses in dotted quad
format and group them into more compact CIDR format?

How about:
Convert to integer (doable if IPv4)
Or into one integer
Find the least significant "1".
Done

 

[John W. Krahn]

Is there a perl way to take a list of IP unordered addresses in dotted quad
format and group them into more compact CIDR format?

http://search.cpan.org/search?query=CIDR&mode=module


John