TCP UDP Port Forwarding with Cirrus LTE Modem

resjus10 · 2020-08-02T06:30:54.572Z

Hi everyone. Thank you for your help.

How can I enable TCP UDP port forwarding on the LTE modem of Cirrus model GL-AP1300LTE? I do not use the WAN and settings only allows me to specify the WAN option for port forwarding under Admin Panel > Firewall > Port Forwards > External Zone. The settings do not have an LTE modem option for the External Zone.

I thought about using the AT Command to open a TCP UDP Socket Service on the Quectel EC25 modem, but will that open the port to the LAN also? Thank you.

alzhao · 2020-08-04T09:04:26.242Z

port forward in the WAN, means the WAN zone in firewall, which includes LTE modem connections.

WAN in firewall <==> cable wan, repeater, modem, tethering

resjus10 · 2020-08-04T09:42:25.762Z

Thank you. How do I set the WAN to use the VPN public IP instead of the LTE modem IP?

alzhao · 2020-08-04T10:18:42.102Z

resjus10:

How do I set the WAN to use the VPN public IP instead of the LTE modem IP?

You can try in luci->network->firewall and add your vpn interface in the wan zone.

resjus10 · 2020-08-04T11:27:44.671Z

Thank you for telling me about Luci – I have never used OpenWRT, so I appreciate your help.

I successfully added the OVPN to the WAN Zone. How do I specify that the OVPN IP is used for port forwarding the gateway instead of the MODEM IP?