Wcf net.tcp port sharing - links

Sample:
http://blogs.msdn.com/drnick/archive/2006/08/07/690331.aspx
http://blogs.msdn.com/drnick/archive/2006/08/08/690333.aspx

MSDN documentation:
http://msdn2.microsoft.com/en-us/library/ms734772.aspx

Teredo:
http://www.microsoft.com/technet/network/ipv6/teredo.mspx