Hello,
Thank you for writing to Microsoft Community Forums.
I understand your concern, as this issue is related to configuring demand dial interface from Remote Access Management, I would suggest you to post your query in the TechNet forums. Where you will find support from professionals who are dedicated to handle issues with Routing and Remote Access. They will be able to assist you better with this issue.
Regards,
Sandeep Kumar M
Microsoft Community – Moderator