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Old September 1st, 2013, 10:50 AM
Spirrwell Spirrwell is offline
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Default NAT Loopback B90-755044-15

I recently got my hands on a Netgear 7550 which is apparently from Frontier, but it works nicely. The only problem is that I can't access a local server using my public IP unless I'm on a computer outside my own network, which after asking around I found out that this is referred to as NAT Loopback and not all routers\gateways\whatever support this.

I'd like to know if it's possible to set it up on this device. I haven't been able to get it to work. Perhaps if I were to install the generic Netgear firmware it would work, but I don't know, any help?
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Old September 1st, 2013, 03:42 PM
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jmizoguchi jmizoguchi is offline
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Default Re: NAT Loopback B90-755044-15

This model is ISP specific branded unit

You need to consult issues with your ISP suppport
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Old September 1st, 2013, 10:55 PM
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Default Re: NAT Loopback B90-755044-15

Quote:
Originally Posted by jmizoguchi View Post
This model is ISP specific branded unit

You need to consult issues with your ISP suppport
My ISP isn't going to help me, because my ISP isn't Frontier. It doesn't matter the ISP brand. I could flash the firmware with generic Netgear firmware. I asked for help here, please give me help HERE.
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Old September 2nd, 2013, 05:17 AM
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Default Re: NAT Loopback B90-755044-15

There is no Netgear firmware for this model since model is for ISP to supply customers

Any limitation can be flashed firmware that on this device
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Old September 2nd, 2013, 05:59 AM
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Default Re: NAT Loopback B90-755044-15

What's the point of being able to access your server by it's public ip - it's just as easy to access it via the private.
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Old September 2nd, 2013, 06:57 AM
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Default Re: NAT Loopback B90-755044-15

Quote:
Originally Posted by jmizoguchi View Post
There is no Netgear firmware for this model since model is for ISP to supply customers

Any limitation can be flashed firmware that on this device
I'm fairly sure there is. I downloaded the source code to the firmware yesterday from Netgear. It's open source, which means I could probably attain the source from Frontier if it's a GNU GPL license.

I got it right from here http://kb.netgear.com/app/answers/de...mers-%28gpl%29

I haven't opened it up yet, but it may have an already pre-compiled binary, and if not I could compile it or find the binary most likely. It's the same exact version that's on my modem except it's not branded.

I'm not sure what you were trying to say with that second sentence, so I'll ignore that for now.

But as for accessing it from my private IP, sure it does work, but the problem is I like to see whether or not my servers are properly running. If I'm running a web server I could go through the pain to use a proxy to check to see if my website is working, but for a game server I have no real way of knowing if people can connect to it until somebody does. Sure there's online services to check if my ports are open, but that doesn't help if I made some other mistake like forwarding a port with the wrong computer.

Anyway, help is much appreciated. I'm looking for a solution, so please refrain from the redirects here, I just want a definite answer, can it be done, or can't it? If it can, how?
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Old September 2nd, 2013, 08:27 AM
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Default Re: NAT Loopback B90-755044-15

Because this unit is ISP branded firmware any bug or issues resides in branded firmware or whoever ISP you are using also blocking the ports

Otherwise I say you need to compile your own firmware if ISP don't block the
You need check open source and make new one if that helps
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Old September 2nd, 2013, 09:20 AM
Spirrwell Spirrwell is offline
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Default Re: NAT Loopback B90-755044-15

I'm still not understanding what in the world you're saying, but I will make it perfectly clear what I mean. The modem is a Frontier branded modem. Frontier, is an ISP which I am NOT using. The modem however still works fine, I could've easily ended up with a Verizon branded version of the modem, or AT&T, it doesn't matter. It's all the same with the exception of a different logo.

My ISP doesn't block ports, this is specific to the device, nothing to do with my ISP or anybody else's. I just want to enable NAT Loopback on the modem, but I don't know how or if it's supported by the modem.

What I've been describing was working perfectly fine when I was using another modem in bridge mode and setting everything up through a router. I did NOT attain this current modem from my ISP, I got it on my own. Whether or not it's branded as Frontier or any other ISP is irrelevant. I'm just trying to setup my Netgear 7550.

There's virtually no documentation on the modem. So I'm at my default gateway 192.168.254.254, I'm logged in, what do I do to enable NAT Loopback if possible? Is there a checkbox to enable it? Do I have to modify the routing table? What do I do to make it work? OR is it not possible?
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Old September 2nd, 2013, 10:10 AM
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Default Re: NAT Loopback B90-755044-15

Loop back is no supported on all Netgear home end router
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