NVG589 NAT loopback / reflection possible?

Teacher

NVG589 NAT loopback / reflection possible?

I have several camera's behind the NVG589. I have them updating to dyndns.org. The goal being that you can resolve the name internally behind the NVG589 and externally using the same name (ie mycameraname.dyndns.org). Some camera software allows you to enter the LAN IP and external dns name if your using 3G/4G connections. It doesn't solve the problem if you connect to another LAN and want to view the camera's on your local network behind the NVG.

 

Being able to resolve that info is commonly refered to as NAT loopback.or LAN reflection. Several routers can do this but looking through the forums and reading the NVG589 docs, I don't see a specific yes/no. I know I can dumb the NVG down and use my own router but I'd rather not if someone knows how to do this on the NVG.

 

Thanks in advance! 

Message 1 of 29 (3,597 Views)
Highlighted
Community Support

Re: NVG589 NAT loopback / reflection possible?

[ Edited ]

Hi hallfleming,

 

Sorry for the late response. With our routers, we do not  have the ability for NAT loopback. The closest thing you can come to it is Passthrough mode, which will assign your device the public IP address. 

Instructions for that can be found here.

 

Hope this answers your question.

 

-David T

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
Employee Contributor*
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
Message 2 of 29 (3,547 Views)
Teacher

Re: NVG589 NAT loopback / reflection possible?

Thank you for the reply and clear answer to the question.

Message 3 of 29 (3,536 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

IP passthrough mode will NOT work with your router behind the NVG589 (unless one has a WAN IP address, aka internet IP address, to assign to one's router behind the NVG589).

Message 4 of 29 (3,330 Views)
Tutor

Re: NVG589 NAT loopback / reflection possible?

This is a more recent thread, with a possible solution to the NVG589 loopback problem:

 

 https://forums.att.com/t5/Residential-Gateway/Will-using-your-own-router-allow-loopback-connections/...

Message 5 of 29 (3,115 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

Just wondering...why did someone rate my post with one star?

Message 6 of 29 (2,904 Views)
ACE - Expert

Re: NVG589 NAT loopback / reflection possible?

My guess would be that it got one star because it doesn't make any sense.

 

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 7 of 29 (2,900 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

NAT loopback doesn't work.

 

One needs to assign another (WAN) IP directly to something to hit it from the internet.

 

Nothing diffcult about that.

Message 8 of 29 (2,890 Views)
ACE - Expert

Re: NVG589 NAT loopback / reflection possible?

True, the NVG589 does not support NAT loopback.

 

What this has to do with whether IP Passthrough will work or not, I have no idea.

 

The statement "One needs to assign another (WAN) IP directly to something to hit it from the internet." is equally perplexing.  If you turn on IP Passthrough to a router, that router will be given the public WAN address from the RG when it asks for it via DHCP and incoming traffic not meant for the IPTV devices will be sent to that router.  Okay, some routers may have trouble with the RG's DHCP implementation and need to configure the address statically to keep the connection reliable.

 

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 9 of 29 (2,866 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

Very simply.

 

IP passthrough doesn't work (well/ easily) on most ATT routers.

 

Instead of IP passthrough get a second (WAN) IP and assign it to second router which can be done with ATT stock routers easier than IP passthrough.

 

Yet again what is difficult to comprehend about this?

 

Lets just end it here.

 

Message 10 of 29 (2,859 Views)
ACE - Expert

Re: NVG589 NAT loopback / reflection possible?


schnappi wrote:

Very simply.

 

IP passthrough doesn't work (well/ easily) on most ATT routers.

  


IP passthrough works fairly well on the RG's that support it (the Motorola/Arris branded ones).  On the 2WIRE/Pace branded ones, the equivelent functionality is called DMZplus.  It works fairly well too.

 

However, AT&T's RG firmware seems to have a consistant problem with intepreting the DHCP spec like everyone else and renewal replies come from a non-standard address.  Some consumer routers are okay with this, some aren't.  This applies for any reason your router is configured to use a DHCP address (i.e. whether its in IP Passthrough mode or not, though very few would recommend that configuration...).  It could also cause problems for other equipment that used DHCP to obtain an adress directly from the RG.

 

So... I'll go for "easily."  "Well," not so much.  And your original post still makes little sense, due to the "unless one has a WAN IP address, aka internet IP address, to assign to one's router behind the NVG589," since every U-verse customer is assigned at least one WAN IP address.

 

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 11 of 29 (2,826 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

What do you not understand about devices having their own IP address on the internet instead of being behind a NAT?

 

If one were to buy an extra IP address from UVerse one could assign the extra WAN IP address to their own router behind their ATT router. It might be easer to assign a second WAN IP address to a device than it is to get "IP passthrough" mode to work.

Message 12 of 29 (2,801 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

[ Edited ]

If you wish to continue to talk about making little sense; many things ATT does make little sense (for everyone except ATT's bottom line), like requiring use of their own modem/router combination device and charging a $7 fee for it every month.

 

Cable internet companies can make consumer internet work with just a modem. ATT probably could probably do so with (non-cable) UVerse if they wanted to.

Message 13 of 29 (2,800 Views)
ACE - Expert

Re: NVG589 NAT loopback / reflection possible?


schnappi wrote:

What do you not understand about devices having their own IP address on the internet instead of being behind a NAT?

 


I know things about end devices having their own public IP address that would keep you awake at night.

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 14 of 29 (2,787 Views)
Mentor

Re: NVG589 NAT loopback / reflection possible?

Glad this can end with a good sense of humor!

Message 15 of 29 (2,783 Views)
Share this topic
Announcements

Welcome to the AT&T Community Forums!!! Stop by the Community How-To section for tips on how to get started.