perl-Net-Netmask

Net::Netmask parses and understands IPv4 CIDR blocks. It's built with an
object-oriented interface. Nearly all functions are methods that operate on
a Net::Netmask object.
There are methods that provide the nearly all bits of information about a
network block that you might want.
There are also functions to put a network block into a table and then later
lookup network blocks by IP address in that table. There are functions to
turn a IP address range into a list of CIDR blocks. There are functions to
turn a list of CIDR blocks into a list of IP addresses.
There is a function for sorting by text IP address.

          

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License: Artistic-1.0 or GPL-1.0+
URL: http://search.cpan.org/dist/Net-Netmask/