Suppose you need to publish some sites both internally and externally using TMG 2010...
When a user is "internal" (connected to the LAN), we do not want users to enter extra authentication to access the site as they are already logged in using their active directory account.
When the same user is "external" (coming in through the internet - we have a hardware firewall in front of the TMG), we want the users to enter their userid/password before being admitted to the same site.
Is this is configuration that can be setup with TMG 2010? How should this be done?