Server 2008 Firewall problems

The new 2008/Vista firewall seems like a good idea, but it doesn't work the way I would expect it to...that, or I don't know how to use it.

Here is what I'm trying to do: I have a 2008 machine with two network interfaces. One of them is connected directly to the internet, the other is connected to an internal LAN. When the computer is connected only to the internal LAN and the connection is set as a "Private Network", obviously all the filesharing, etc works (as per the firewall rules). And if the other connection (to the internet) is active and set to a "Public Network", obviously the filesharing, etc is disabled/blocked.

Anyway, you would think that since the internal interface is set as a "Private Network" and the internet interface is set to "Public Network" that windows firewall would apply the "private network" rules to the internal interface and the "public network" rules to the external interface. The problem is windows will apply the strongest rules (public network) to all interfaces even if only one interface it set to a public network....wtf? why?

Is there any way to have per-interface settings? Or does anyone have a solution for my problem (short of using a different firewall)?

have you tried editing the firewall rules per interface from the firewall management mmc?

Could you be slightly more specific? I don't see any per interface area.

well, I guess there aren't per interface rules, I thought I saw that somewhere., guess just inbound/outbound. Have you tried installing ICS? I would imagine that you need to do that or setup whatever they call that in 2008 . . .

ICS for large networks is Routing and Remote Access.

LOL, thanks. We always just use a real router or firewall . . . never understood why people use windows server as a router . . .

I'm not using Windows as a router, I don't want to. I just want the server to have direct access to both networks.