That's right! TMG Beta 2 firewalls sport an industrial strength IPS. This isn't you grandfather's IPS (you know, the one that spits out false positives all day and is of little use in actual practice). This IPS is based on GAPA and goes by the name of Network Inspection System. There's no news or information on the Internet yet regarding this feature, and the help file doesn't contain any details. If you want to know more about GAPA, check out http://research.microsoft.com/en-us/um/people/helenw/papers/2005-133.pdf This will give you a clue as to the power of the TMG firewall's new NIS IPS.
Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer