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How do I setup a DMZ?

I have AT&T DSL with 5 IP's and a Netopia 3347 router.
Currently using one IP setup with NAT to the private addresses behind the firewall and port 80 forwarded to the web server.
I'd like to create a true DMZ with web servers outside the firewall using the currently unused 4 IP addresses.  Can anyone provide any guidance on how to accomplish that?
1 Solution
That router does not seem to support multiple NAT maps.

So I am not 100% sure about this.  It does support VLAN's.  So you could try and setup a VLAN that uses the public IP addresses.  Then, if possible, turn off NAT'ing for that VLAN.  

I don't know if you can turn off NAT'ing for a single VLAN on that router.  And if you do turn of NAT'ing that means the router will no longer be providing any firewall functions for that specific VLAN.  The router only does firewall functions when it is doing NAT'ing.

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