Quectel ec200a-eu LTE modem does not route traffic

[AndrewZ]

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[Solved] Openwrt and EC200A-EU with NCM proto

For ECM mode to work you need to send to the modem AT+QNETDEVCTL=3,1 once and the modem will dial automatically on its own and you will need to have just a regular DHCP interface on OpenWrt side. In NCM mode the connection script will send AT+QNETDEVCTL=1,1 every time to initiate the connection, then it will use the same DHCP mechanism to get the IP address from the modem, but first you need to disable the auto dial you set before, so send once AT+QNETDEVCTL=0,1 Please do not do anything desc…