Dibbler is a portable DHCPv6 implementation. It supports stateful (i.e. IPv6 address granting) as well as stateless (i.e. option granting) autoconfiguration for IPv6. Currently Linux 2.4/2.6 and Windows XP and Windows 2003 ports are available. It features easy to use install packages (Clickable Windows installer and RPM and DEB packages for Linux) and extensive documentation (both for users as well as developers). Dibbler is developed under GNU GPL licence. It means that it is free for all, including commercial usage.