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tburba56's avatar
tburba56
Tutor
May 25, 2023
Solved

Hidden Port Forwarding values RBR760

I changed ISPs to AT&T Fiber. I didn't want to use their equipment as I needed to continue with my Orbi760 with a number of static IP addresses. We did an IP Passthrough from the AT&T modem/router to...
  • tburba56's avatar
    tburba56
    May 25, 2023

    Thanks for spelling it all out for others that may read this later. Your answer is much more straightforward and complete.

    I already had it set up with the IP Passthrough. I messed up by not clearing the routing table on the AT&T device by doing a reboot of it with the Orbi disconnected. I should have let the tech do the IP Passthrough AFTER rebooting the AT& T device.  The table would have been clean and not forced the 192.168.173.xxx to be reset to 10.0.0.xxx. That's all done now and seems everything is back working again. 
    I appreciate your insight. Thanks again. 

FURRYe38's avatar
FURRYe38
Guru - Experienced User
May 25, 2023

Not sure why the Orbi would have changed to 10.x pool range. Default IP pool range for NG routers is 192.168.1.1 not 192.168.173.x. Unless it's incorrectly detecting 192.168.1xx.x

.1.1 should work on Orbi. What happens if you manually change back to 192.168.1.1 on the RBR?

 

tburba56's avatar
tburba56
Tutor
May 25, 2023

Actually, it turned out to be the AT&T Modem/Router. Once connected to the Orbi, any settings regarding Port forwarding remained in the AT&T device routing table. No wonder I couldn't see them. Once I rebooted the AT&T device, then I could set the port forwards as I needed. Most everything is working. I still have an issue with my Channels DVR and port 8089 when I am away from my house. But I was able to set it. Before I got errors it was already set.  I'll have to dink around with that on something other than my cell. I may not have enough bandwidth on my mobile to run TV over cellular. May have to be wifi only. 

Thanks for responding

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    May 25, 2023

    If your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
    https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
    Couple of options,
    1. Configure the modem for transparent bridge or modem only mode. Then use the Orbi router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
    2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode.
    3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router. https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop
    Try option #2 first...Then you won't need to do any PF configurations on the RBR. Or use AP mode on the Orbi system.

    • tburba56's avatar
      tburba56
      Tutor
      May 25, 2023

      Thanks for spelling it all out for others that may read this later. Your answer is much more straightforward and complete.

      I already had it set up with the IP Passthrough. I messed up by not clearing the routing table on the AT&T device by doing a reboot of it with the Orbi disconnected. I should have let the tech do the IP Passthrough AFTER rebooting the AT& T device.  The table would have been clean and not forced the 192.168.173.xxx to be reset to 10.0.0.xxx. That's all done now and seems everything is back working again. 
      I appreciate your insight. Thanks again.