Double NAT situation, any suggestions?

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  • Updated 2 weeks ago
Here is my situation, I have a primary and secondary LTE wireless internet connections, each going through what seems a double NAT at the LTE radio before the router. I use my cell phone carrier as a 3rd connection. I am unable to use SmartLink no matter what I've tried regarding port forwarding etc. However using SoftEther I am able to connect from my cell phone carrier via my laptop to my 6700 in the shack via SmartSDR, but if I use the secondary LTE connection as the internet connection on the laptop, no luck at all. 
Using a TP-Link WDR3500 for primary internet router and a NetGear R7000 on the secondary internet connection.
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Mike - VE3CKO, Elmer

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Posted 2 weeks ago

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Kari Gustafsson

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Hi, I used to utilize remote rig boxes and this I found on their forum. I am not sure it applies today. VPN and double NAT:s is over my competence level :(
"What the others say is true, there is double natting so the WAN side of your router has a private IP address. That is a problem, but not the only problem. Unfortunately, just using DDNS to map to a public address is not sufficient because Bell seems to block incoming connections to the public addresses. The only way I was able to get it to work is to set up a VPN between my remote site and my control site. There are different ways of doing that, including routers at each end that have site-site VPN capability. Another way is use a computer at remote site that hosts the VPN session. I use LogmeIn Hamachi and some router software on a desktop computer at the remote site for this, but you should also be able to do it with a raspberry pi running free RemoteQTH server software to do the VPN.

I hope that helps, and that it doesn't completely discourage you.

73 Mark VA2MM"

73 Kari SM0HRP