DirectAccess 2012 - Best way to deploy between two firewalls (NAT'd)

We are deploying DirectAccess 2012 and have a requirement that traffic from the internet (red) must be proxied through the DMZ (yellow) before touching anything on the internal network (green). I will initially only be configuring it to use IP-HTTPS (no
teredo). We have two firewalls, one on the perimeter (FW1), and one between the DMZ and internal networks (FW2).
I'm trying to determine the best way of deploying this in our environment. I've come up with two possibilities:
1. Deploy with two network cards, each connected to separate DMZs. In this scenario, NIC 1 would contain the internet facing IP in DMZ 1 (say 10.10.10.2 and NAT'd by FW1), and NIC2 would contain an internal facing IP on DMZ2 (say 10.10.11.2). NIC2 would
be routable to the internal subnets via the internal firewall.
Crude diagram: Internet -> FW1 -> 10.10.10.2---DA---10.10.11.2 -> FW2 -> Internal network
2. Deploy with one network card in the DMZ. This would be NAT'd by FW1, and then pass traffic through to to FW2. Since I'd be allowing all TCP/UDP traffic (as per MS) through FW2 to the primary network, this method seems unsafe to me.
Crude diagram: Internet -> FW1 -> 10.10.10.2---DA -> FW2 -> Internal network
What is the best and most secure way to deploy this in the DMZ? I do not want to put an internal network IP directly on the DirectAccess server, as it needs to go through FW2 before reaching internal. The DA server should be isolated in the DMZ.
Advice is appreciated.

Hi,
The first solution is better. The DA server is under the protection of FW1, and the DA server
already offers certain security itself, such as the requirement of a Computer Certificate, domain membership (which mean domain authentication) and so on.
Here is a related threads,
DirectAccess 2012 + Security concerns
http://social.technet.microsoft.com/Forums/windowsserver/en-US/2e394a72-d263-449f-9ec2-02701aa8cb96/directaccess-2012-security-concerns?forum=winserver8gen
Hope this helps.
Steven Lee
TechNet Community Support

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>
>
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sangita wrote:
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sangita wrote:
Rob,
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http://edocs.bea.com/wls/docs81/admin_ref/ant_tasks.html
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HELLO!!! WELCOME BACK!! I THINK YOU SHOULD USE
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http://en.wikipedia.org/wiki/Security_Identifier
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Attachments:
GrabWhileLoop.png ‏34 KB
MainWhileLoop.png ‏68 KB

Thanks for the comment. I have looked into the producer/consumer architecture, but to be honest, I'm not quite sure how everything will work while doing that. I have seen the example codes, and I have thought about implementing (or at least attempting to) but I'm still unconvinced that it will run that much more efficiently. There is other setup outside of the images that had to be done outside of either while loop. Also, I don't know where I would put both loops.
Last time, I attempted to put the grab while loop inside of the state machine. Things got chopped because it took so long to go through the main while loop's "acquisition" state (which is really the processing state). I needed both to simultaneously run. The grab reset every time it went to the "grab" state which is not what I wanted. The only way I can thing to have combatted this was to combine the grab and acquisition in the same state. If that were to happen, I'd take out the for loop and grab one image at a time. However, that would still probably make things even slower than they already are.
In terms of the doing something before an image is assigned in for loop, I don't need that pixel sum value to refresh too quickly. As it is already, the main while loop is slow enough as it is, so I am more afraid that everything will run too slowly the more I do. I know where the bottleneck is in my code, but I can't really see a way to "even out the flow". Even if I moved to the other architecture, I feel it'd take the same amount of time that it does already.
From my debugging, the Image local variable in the main while loop seems to refresh as quickly as the grab while loop spits it out. Granted once the main while loop finally completes, main images have gone by. This is what has to be though because it just take up so much processing power to run through the main while loop state.
As a side note, does labview have an issue with acquiring images in real-time that you have heard of? I ask because when I run the code, there is a solid white line that I'm supposed to see in my display. Every time things either time out or something, the line moves which is not supposed to happen. The line also moves every time I place my mouse cursor in the display or if I spin the mouse wheel to scroll. If I don't do either of those things, it'll eventually move on its own.

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