I am looking for help in understanding how to authenticate users to all subdomains of a domain using forms authentication. I have a toplevel domain.com which allows anonymous access to most of the site (I have a secured directory that requires login) and provides an asp.net login control. All this is working fine.
However, I need to allow users to login using the login control at the top-level domain and be authenticated (and redirected) to a subdomain: sub.domain.com. I have set up the subdomain to be secure and it is working as expected. How can I allow users who sign in to the top-level be authenticated to the subdomain as well. FYI - both domains are hosted on the same server.
Thanks for any help.