Net::IPv6Addr provides functions for parsing IPv6 addresses in all formats described by RFC1884. If Math::Base85 is installed, formats described in RFC1924 are also valid. It will generate "IP6.INT." strings (as described in RFC1886) if you are inclined to play with DNS records.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.