Double NATing - setup ASUS RT-AC68U behind Pace 5168N-010 modem

I Found the solution below which does NOT quite work in my case but a variation did. When I select the "Choose" button I loose the ability to select ‘forward ALL traffic' (selection disappears with choose button click). But since my computer/router is identified already by its MAC no need to (i think) which allows me to then select "Allow all applications (DMZ mode)".

The simple testing that I did appears to work (usage and windows troubleshooter) just not sure what I can do to adequately test it. Any suggestions appreciated.

If I discover any problems with this configuration I will update this post.

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SOLUTION FROM WEB
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Detfree23

Tutor

Dec 29, 2016 1:32 PM

Re: Is Pace 5268ac capable of bridge or IP passthrough mode?

The answer is YES! I just did it (with ATT support). All steps are done through Ethernet.



Step one: Connect the ATT router..(say ethernet port 1), connected to your WAN Ethernet port on your personal Router.

Step two: Connect an Ethernet cable from your computer to the LAN connection to your router.

Step three: Find the "DHCP IP address" from your WAN interport on your personal router (will likely be 192.168.1.x or the typically the DHCP Gateway Address)- Make note that the ATT Pace 5268AC's default is 192.168.1.254).

Step three .a: Log in, or while logged into your personal router, set the WAN Connection type to Automatic IP or what ever setting the router has that will automatically acquire an IP from the PACE 5268AC modem.

Step four: Go to the PACE FIREWALL page - "Applications/Pinholes and DMZ, and look for section "1". In that area there will be a Cell window where you can type in the known WAN address of your personal router (192.168.1.x).

Step five: Put that IP address in the window and click the button to the right called CHOOSE.

Step six: Scroll down to Options "2" area and at the bottom there is a radio button to ‘forward ALL traffic to your (it says computer, but we know it's your router)’. Enable that button and click on the save button.

Step seven: If you look at the STATUS tab on the ATT FIREWALL Status tab now, you'll see ALL/ALL inbound traffic to be directed to your ROUTER.

Step eight: Turn off your router now.

Step nine: Reboot the ATT PACE 5268AC router and wait until you see the "Service" light come on blinking actively. This will take oh....2 minutes? Once the Service light is on....turn your personal router on

Step ten: After your personal router boots, log into it and you should see the WAN interface with the PUBLIC IP on it.



Note: all ports will be forwarded and open. Make sure your router has only ports open that you want open.
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