perl-NetAddr-IP -- Manages IPv4 and IPv6 addresses and subnets<hr>
<a href="http://search.cpan.org/dist/NetAddr-IP/">http://search.cpan.org/dist/NetAddr-IP/</a><hr>
This module provides an object-oriented abstraction on top of IP
addresses or IP subnets, that allows for easy manipulations. Version
4.xx of NetAdder::IP will will work older versions of Perl and does not
use Math::BigInt as in previous versions.
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