Open zyxel Keenetic 4G port with USB modemom?

Question

network hardware

Good afternoon!!! Tell me, I can’t forward the port. This means the zyxel Keenetic 4G router (2nd generation firmware), the MTS modem is connected to it. On the local network Registrar with ip 192.168.1.35 . The port to connect to it needs to be 37777 open. In the NAT settings of the broadcast, I prescribe for the USB modem 0 interface. But nothing happens, I check the port is open or not. In the Internet, services write that the port is closed! The application does not connect.! Tell me! Thank you !!!

Answer 1

most likely it won’t work out due to the fact that the usb modem is already sitting behind the provider’s nat ports are blocked by the provider
, you can check by connecting the usb modem to your computer and see your ip on the network if it is gray leave these attempts to
find out your external ip 2ip.ru
find out it is gray or white https://zyxel.kz/kb/2730/
will be solved only by a registrar with p2p support or vpn setup on zyxel