Hi owlinrye,
Thanks for posting here.
So the TMG is set as an internet gateway in this environment ? I know that we can implement such restriction by setting TMG rules or policy on it (could also restrict non-domain joined hosts).
Access design guide for Forefront TMG
http://technet.microsoft.com/en-us/library/dd897017.aspx
Anyway, not a expert of TMG and please post to TMG forum in order to get the most professional responses :
http://social.technet.microsoft.com/Forums/en-US/Forefrontedgegeneral/threads
Thanks.
Tiger Li
Tiger Li
TechNet Community Support
