I strongly suggest not using this module for the following reasons:
* It has no tests beyond ok(1)
metacpan.org/source/JJMB/Net-IPv6Addr...
and yet it fails tests on most systems.
matrix.cpantesters.org/?dist=Net-IPv6...
* The main module relies on something called "Debug" yet does not supply that.
metacpan.org/source/JJMB/Net-IPv6Addr...
rt.cpan.org/Public/Bug/Display.html?i...
* Its documentation is completely unformatted.
metacpan.org/pod/Net::IPv6Address#DES...
* It has not been updated since 2008.