I’ve tested this on 3 devices, and using several different devices behind the Teltonika, and port forwarding just doesn’t want to work.
For testing purposes, I have connected the WAN port of a brand new RUT 200, running FW
RUT2M_R_00.07.10.4 to my network.
The WAN port is connected has an IP address of 192.168.10.124
There is a device connected to the LAN port, (no changes to standard config) on 192.168.1.20 serving HTTP pages on port 80. If I connect to the RUT200 wireless AP I can see the expected web page on 192.168.1.20
I have added the below rule to forward port 8888 to port 80 however I can’t get the web page to appear when I browse to http://192.168.10.124:8888/
This is really frustrating - there has to be something I’m missing, have put a device with node red on it (port 1880) and that gives the same results. It just looks like port forwarding isn’t working at all.
I’ve read Port Forward: Accessing LAN devices - Teltonika Networks Wiki countless times and I’m convinced I haven’t missed anything - the remote config access works on 192.168.10.124 when enabled and the DDNS stuff will come later when it’s being used in production.
I’m testing - the WAN address of the RUT is 192.168.10.124
The machine I am testing from is on the same subnet (its address is 192.168.10.182, subnet mask 255.255.255.0).
Surely the teltonika should port forward the requests as the port forwarding rule above says- it shouldn’t matter that the WAN port is on a class C subnet and not a public IP as the test machine is in the same range.
The rules look permissive enough.
Could you disable the port forwarding and add a route to 192.168.1.0/24 via 192.168.10.124 on your test PC then access 192.168.1.20:80 and :1880 directly ?
Does that work ?