01-15-2013 3:14 PM
Setting up IP Passthrough with 3rd Party Router
Connect a computer into one of the Ethernet ports on the back of the NVG510 using an Ethernet cable. Use another Ethernet cable to connect the WAN port of the 3rd party router to another of the Ethernet ports of the NVG510.
1. Open your browser and browse to 192.168.1.254
2. Under the Device section next to status click on "Device List"
3. Your IP Address/Name of your Computer and 3rd party router should show up in this list as the only two connected devices.
4. If you are not able to find out which device is which you may run the "ipconfig" command in windows by
5. Write down or copy the IP address and Mac Address from the Device list that isn't your computer and then Click on "Firewall" at the top
6. Below "Firewall" click on "IP Passthrough"
7. Under the IP Passthrough section fill in the following
8. Click "Save" at the bottom and power cycle the NVG510 and the 3rd party router.
9. Unplug computer from NVG510 and connected to your router and wait for both to come back up.
10. Once both the NVG and router are up open a browser and verify you are able to browse.
03-13-2013 4:39 PM
These settings do not work on Cisco WRVS4000N. I have tried several different recommendations for using the NVG510 and, unfortunately, the firmware design is poor and the only way to get IP passthrough to work properly with business-grade routers is by purchasing a static IP from AT&T at an additional monthly cost.
03-13-2013 5:20 PM
One thing worth trying that is not listed in the steps is statically setting up the Cisco WRVS4000N with an IP in the pool that is designated in the NVG510, and then creating a default route on the Cisco WRVS4000N with the gateway address (default 192.168.1.254). That should work. You still have to go through the steps listed in the article on top of this.
03-13-2013 5:40 PM
Thanks, David. Your recommended setup is the only setup that works, but is not industry best-practice. This complicates port forwarding and the use of DDNS services.
With services such as PPoE in bridge (previous AT&T DSL) and true DHCP (Comcast/ Xfinity), this was never an issue because the router could be given the WAN address and the modem was used as a dedicated passthrough gateway.
03-13-2013 5:50 PM
Yes, you are correct about that. Unfortunately, it is just a work around for right now. I do apologize for any inconveniences this has caused. The only thing I can say is I, along with many others, have voiced these issues towards the appropriate work group that can influence the next firmware and hope for a solution that accommodates as many people as possible.
08-12-2013 10:19 AM
"Plug one computer into an Ethernet port on the back of the NVG510 and the 3rd party router." needs clarifying. I'd suggest:
"Connect a computer into one of the Ethernet ports on the back of the NVG510 using an Ethernet cable. Use another Ethernet cable to connect the WAN port of the 3rd party router to another of the Ethernet ports of the NVG510."
I'd do it myself, but I don't have edit privileges on this document.
08-12-2013 11:06 AM
09-01-2013 1:48 PM
Basic question: with the above instructions, can I plug in my new apple time capsule to the nvg510 and all will be happy and working? I'll be using the wifi from the apple device, and the motorola is just used as a DSL modem? Or do I need to work through another series of changes on the time capsule?
09-02-2013 7:27 AM
Micahel-kun, I would follow the instructions above, treating the Apple Time Capsule as the "3rd party router" in the instructions.
09-07-2013 5:19 PM
Thanks all. So I understand, is this a solution that if AT&T changes the IP address everything will still work?
09-08-2013 5:42 AM
Yes, you'll be fine. But it's not likely your public IP address will change on U-verse.
09-08-2013 8:48 AM
So I tired the above with a new 2013 Airport Time Capsule (wifi base station and remote back up disk).
All seemed to work fine: I connected my MacBook Pro to the NVG510 via standard ethernet ports, then the Time Capsule WAN to the NVG510. In Safari, I went to 192.168.1.254, found the MAC address of the Time Capsule, and then dropped that into the IP Passthrough field. Saved these settings, and then restarted the NVG510 via the website, and restarted the Time Capsule via Apple's Airport Utility.
First odd thing: the name of the NVG510's old wireless network was still active and listed under wifi networks. So I selected the wifi network of the Time Capsule, and the internet status light in Airport Utility was yellow (disconnected), but the Time Capusle showed green. I then switched to the old NVG510's network, and the internet icon showed a green status, but the Time Capsule was not connected.
I went back 192.168.1.254 and double checked that my new settings were still there, and they were. In Airport Utility, I checked that the wireless mode went from bridge to DHCP + NAT, and it was.
Instructions in a link above mention to turn off the wifi option on the NVG510 via 192.168.1.254. I DID NOT do this, as it was not part of these main steps.
The only other thing worth mentioning is that the Time Capsule was originally automatically set up to join the NVG510 network in bridge mode. I named the TC's wireless network, and that was that. So am I missing any settings that I need to change on the Time Capsule?
Thanks for any thoughts. I would love to get this setup so it can use 802.11ac with my new MacBook Air.
09-08-2013 9:48 AM
You may turn off the NVG 510's wireless network or not as you choose as there are reasons to leave it on, and reasons to turn it off. In a router behind router configuration, you'd normally turn it off. Until you do so, it will still broadcast its SSID for you to use.
I'm not sure what the "Internet status light" in the Airport Utility is intended to show. It may be the result of a Apple server's probe to see if it can get to your ATC from the Internet for remote access.
09-09-2013 10:34 AM
I spoke with Apple wireless tech, and they said they built the Airport Time Capsule to work with U-verse easily. They mentioned on the NVG510 just to turn off the wifi capabilities. A few adjustments to the Time Capsule and all should be good. I'll test this later in the week and report back.
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