whois

Availability and IPv6 support

Name	IPv6 support	Supported operating systems
[http://www.linux.it/~md/software/ whois]	included	UNIX, Linux, [http://www.freshports.org/search.php?query=whois *BSD]

Another whois client. Because the RIPE client has lot of hacks and ifdefs and more complex programs lack features or are bloated.

It has some ugly hack finding out the right IPv6 repository