http://www.rfc-editor.org/rfc/rfc3646.txt
RFC 3646: DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6), R. Droms2003-12-01T23:00:00-00:00This document describes Dynamic Host Configuration Protocol for IPv6 (DHCPv6) options for passing a list of available DNS recursive name servers and a domain search list to a client.