NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

jjstewar2's avatar
jjstewar2
Aspirant
Dec 09, 2021
Solved

Router Doesn't seem to be allowing Port Forwarding

I have been trying to set up port-forwarding for microsoft remote desktop. I know I can use teamviewer or one of those, but I want to do it this way with Port forwarding. I've been troubleshooting...
  • jjstewar2's avatar
    jjstewar2
    Dec 17, 2021

    So, I figured it out with what you were saying and one of my co-workers because he uses the same ISP that I use and has the same modem that I have. I apprecaite your help and your posts including others that have posted. Here is what a co-worker and I found with your help.

     

    First we looked at my Public IP address.

     

    1. Then we looked at the IP address for the router (not the gateway IP or the IP for the router as a gateway for my computer. The IP address is found in the connection status of the advanced settings. We found that they did not match. So,

     

    2. We then looked up who the IP addresses belong to using a variety of websites until we found AbuseIPDB.com. This website showed us the information we were looking for.

     

    3. First we typed in the Public IP address that showed in my web browser when I typed "What's my IP address?". Ex: 5.2.97.482

     

    4. Second, we looked up the IP address that was showing up on my router after it went through the modem. Ex: 104.25.64.13

     

    5. When I got the results back, the first IP address showed who my ISP was as it should have been. The second IP address was the interesting one as the result to that showed, "Carrier-Grade NAT RFC6598". That is what confused us. My co-worker is paying for a static IP through our ISP which allows him to port forward and why I wasn't port forwarding. We also found a forum or posting talking about what the Carrier-Grade NAT means.

     

     

    If you don't already know or for anyone else that might be looking into reasons why they may not be able to forward, here is a basic explaination.

     

    The ISP (Greenlight Networks in this case) is using the public IP for more than just you (one customer). It is going through their router first before going to individual modems in the homes of their customers which then gives them a different IP address. Then that IP address is used by your router and modem to get to their router which then goes to the internet. They don't allow the port forwarding unless you pay for a static IP. It's a way to grab money.

     

    Greenlight Networks is a very good company in the Upstate new york area. They are charging me about $50 a month for 500mbps upload and download. They are a fiber optic company. And that is why I am not able to use Microsoft's Remote Desktop.