After some battle with our new ASA I finally got a Site-to-Site VPN between our office and our datacenter. Now I've got a new challenge..
From our office (172.30.10.0/24) I can connect to our datacenter network (192.168.100.0/24) and I can access the devices there. But when I want to access devices on our office network I can't connect. I used the Site-to-Site wizard from both the ASA and the forefront but It seems something is not configured on our Forefront TMG but I can't figure out what it is.
When I try to ping to a device on the office network from a client it gives me "Reply from 172.30.5.10: Destination host unreachable." and if I ping it from our Forefront TMG server it just gives me "Request timed out.". If I monitor the log of the Forefront it doesn't even mention the connection or ping...