We have a working DirectAccess solution in place with no issues for inbound connections from DA clients. We are wanting to manage these clients from SCCM and so I've looked at setting up manage out for this.
I have configured a group policy linked to a security group for manage out clients where I have enabled an ISATAP router and set this as a DNS entry for the internal IP address of our DA server (we only have one). I have also enabled ISATAP in the same group policy, as suggested in the various walkthroughs of this set up.
I have checked clients and the ISATAP interface is enabled via group policy, but they are not receiving an IPv6 address on their tunnel adapter from the ISATAP router. They only have an IPv6 link-local address defined.
Can anyone point me into the direction of why this would be the case?