Cisco Routers :: Setup DMZ With RV042G And Single IP

May 11, 2013

I'm trying to set up a single web server in a DMZ using the RV042G and the docs seem woefully inadequate to explain how this is accomplished.
 
I've attach a picture of my setup..
 
I'm assigned a single Public IP.. in the example I've used 172.16.5.22 and so I've set the WAN interface for static IP.
 
The DMZ port is not obvious how to set up.. So I've chosen to define a private subnet and throw the web server in there. As I activate the DMZ, I specify a "subnet" and its address as 10.10.10.1, which I'm assuming goes to the DMZ/WAN port. I assign my webserver the address 10.10.10.3.
 
I leave the Access rules in their default condition.
 
I am a little unsure as to how to setup the static IP info for the web server.
 
Gateway:  10.10.10.1  ?
DNS:        10.10.10.1?  or 172.16.5.1? 

Problem #1
=========
My first problem is that the webserver cannot access the Internet. I get a timeout when I open the browser. I've tried every address there as the gateway and DNS..
 
Problem #2
========
If a person on the WAN side is attempting to connect to 172.16.5.22:80, how does the RV042G know to send it to the 10.10.10.3 device? It doesn't know what address the webserver is assigned; I just gave it a 10.10.10.1 address as the subnet address.
 
I think I'm missing something, conceptually here.
 
Can, in fact, you use the RV042G in this fashion with only a single public IP address? There is almost no information on how the router actually routes traffic when you choose either 'subnet' or 'range' (where the DMZ is in the same subnet as the WAN)

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[code]....
 
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