I have a Traccar server on the LAN behind RUT955 router with mobile WAN, and am unable to access the server from outside ( using Teltonika tracers).
I have set default settings in the router and added port forwarding to the correct port to the appropriate server PC.
Also unable to ping the allocated DDNS hostname from outside, although ping is allowed in traffic rules, and have enabled ICMP requests.
I also have a GNSS base station tcpip NTRIP server and need to allow access to that port too. ( also forwarded that port) but again unable to access the server from outside the router.
This is a fairly common thing to do and the system has worked before by default on other routers eg BT smarthub, EEsmarthub etc.
Which traffic rule should I use to allow access from outside the WAN to these ports ( apart from the forwarding rule) without allowing access to all ports?