User753101303 posted
Hi,
What happens currently? Do you have some authorization in place? If not see
https://msdn.microsoft.com/en-us/library/8d82143t(v=vs.85).aspx
ASP.NET should do this out of the box ie if a page is not allowed, ASP.NET direct the user to the login page and keep the return url so that once logged the user can be directed back to the page he tried to access.
For now I asume this link is not configured to be restricted only to some users ?