NNA and TMG(Threat Management Gateway-Microsoft Forefront)

[rashid2014]

hello!
is that the blocking may be due to the function of TMG which is a secure web gateway, a kind of firewall??

[sreinhardt]

It's possible, but any configuration on that, we would be unable to help with as it is well outside the scope of nagios support. It sounds like either the TMG server needs a service that sends netflow data, which on Windows does generally require something like flowtraq, or that you need to allow it to send outbound, I can't really tell you if TMG already has flow exporting, and if it did, how you would go about setting it up.