The 6to4 interface {0} on the DirectAccess server is not available. Ensure that there is a global IPv4 and IPv6 address on ...

The 6to4 interface {0} on the DirectAccess server is not available. Ensure that there is a global IPv4 and IPv6  address on one of the interfaces, and then enable the interface for forwarding. Run the command "netsh int ipv6 set int "{1}" forwarding=enabled" from an elevated command prompt.