Firewall > DMZ
If you have a client PC that cannot run an Internet application properly from behind the firewall, you can open the client up to unrestricted two-way Internet access. This may be necessary if the NAT feature is causing problems with an application such as a game or video conferencing application. Use this feature on a temporary basis.
The computer in the DMZ is not protected from hacker attacks.
> IP Address of Virtual DMZ Host