Name : perl-Net-IP
License: GPL or Artistic
URL : http://search.cpan.org/dist/Net-IP/
Summary: Perl module for manipulation of IPv4 and IPv6 addresses
This is the Net::IP module, designed to allow easy manipulation of
IPv4 and IPv6 addresses.
There is also a small application which uses the IP.pm module:
ipcount.pl. Basically, it's an IP address mini-calculator, it can
calculate the number of IP addresses in a prefix or all the prefixes
contained in a given range.