Doing CIDR mask calculations in perl

I recently had a need for an application that would allow a user to specify a host range and would require the user to make use of CIDR mask notation.

A quick look on search.cpan.org locates a number of options. I made use of http://search.cpan.org/~dougw/Net-CIDR-Lite-0.15/Lite.pm and it able to meet the requirements quite nicely.