KAME status

IPv6
Latest spec + corrections to spec
IPsec + IKE, all made in Japan
Good note PC support, flow control, ATM PVC
Routing daemons
IPv6 multicast
Bunch of IPv6-ready applications (ports/pkgsrc)
Various physical medium
Ethernet, ATM PVC, sync ppp, async ppp, satellite
mobile-ip6, queueing framework (diffserv), and other interesting things

Integrated into NetBSD, OpenBSD, FreeBSD and BSD/OS
For normal use, plain NetBSD/OpenBSD/FreeBSD installation is okay

Available from ftp.kame.net
Weekly SNAP kit: for those who want more hacking than stability