Hello folks, I would like to chime in on this thread. I have great interest in how this plays out. The Jagornet DHCPv6 Server is capable of providing specific addresses to clients based upon DUID and IAID using a filtering mechanism supported in the configuration file. Of course, predicting what the DUID/IAID may be from various clients is still a challenge. However, if this information is available, the Jagornet DHCPv6 server can support this model. Also, specific binding reservations will soon be supported. Logging is rather extensive as well. The server is Certified IPv6 Phase II Ready. Furthermore, version 2.0 beta will be available soon, which will include support for DHCPv4! Please find the free, open-source version of the IPv6 Phase II Ready Jagornet DHCPv6 server here: http://code.google.com/p/jagornet-dhcpv6/ Best regards, Greg Rabil Jagornet Technologies, LLC.