How Can I access to the DMZ from behind TMG?

Hello I have Zywall USG 100:

wan connected to ISP, ip from dhcp.
Lan1 with a pc and a network behind a TMG
dmz with a NAS.

I can access to the NAS from Internet and LAN1 pc1, but I can't access behind the TMG.

I think I need to configure the TMG to route to the NAS / DMZ but I don't know how to do.

Zywall
limmontreefreeAsked:
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Cyclops3590Connect With a Mentor Commented:
i don't know the exact commands you would need to do since I don't have experience with either of those devices, but you're on the right track.  I would do the following

1) on TMG, configure a default route 0.0.0.0/0 to forward all traffic to 192.168.4.1
2) on Zywall configure a route for 192.168.1.0/24 to go to 192.168.4.2

That should solve your routing problem
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limmontreefreeAuthor Commented:
You help me with your answer.

really TMG takes Routes With RIP but the Zywall firewall Drop the DMZ packets to inform the DMZ Route.
Thanks
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Cyclops3590Commented:
why are you using RIP?  looks like a fairly small network, I would just use static routes and simply things.
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limmontreefreeAuthor Commented:
It's easier check the RIP checkbox.

Thanks
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victorguillenCommented:
I have a similar problem. I'm using ZyWall USG 50 and I can successfully access the FTP server, from inner LAN (behind TMG in your case) and from the Internet to the DMZ; what I cannot access, is the Web UI of the Cloud Drive. I use WD My Cloud.

I don't want to do a port forwarding to 80 as I did for the FTP (I'm doing port forwarding on 21 to My Cloud), because I plan to use My Cloud only as FTP; and for a Web Server, I'm planning to use a full Windows Box, and I will forward my HTTP 80 traffic to that Box, but at the same time I want to be able to get access to the web UI in My Cloud; my setting is exactly the same as yours.
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