I have recently finished a project that adds support for limited aspects of RDPv6 to rdesktop. Specifically I have added support for SSL and SSL + CredSSP. These are the protocols that must be used when "High Security" or "Network Level Authentication" is enabled on the server side. The patch has been tested against Server 2008, 2008R2 and Windows 7 and both scenarios are working well.
A few notes:
--without-winbindand then built normally. Reconfigure rdesktop, adding
--with-samba=to your configure command line. With this option the rdesktop link will pull in 3-4 extra static libraries from the samba build. Thus there is no runtime dependency on Samba, only a built-time dependency. This is unfortunate and if someone could produce a better standalone NTLMSSP implementation that would obviously be a great improvement.
We hope these are useful to the community and can help to jump-start RDPv6 support in the rdesktop trunk.
- David Joyner