The Racoon2 project is a joint effort which provides an implementation
of key management system for IPsec.  The implementation is called
Racoon2, a successor of Racoon, which was developed by the KAME
project.  It supports IKEv1, IKEv2, and KINK protocols.  It works on
FreeBSD, NetBSD, Linux, and Mac OS X.  Racoon2 is provided under a
BSD-style license.

Homepage:
http://www.racoon2.wide.ad.jp/
