LPWA - Network connections with Network Manager (plus ModemManager and libqmi)

Owned by Nikolay Henneberg
18 Sept, 2023
1 min read

USB Connect LPWA based on Qualcomm Chipsatz supporting QMI interface. QMI is Qualcomm's proprietary protocol for using Virtual Ethernet on the USB-Connect LPWA to establish IP connectivity with the mobile operator.

The following documentation describes how to configure the required applications: Network Manager, Modem Manager, libqmi.

Step 1: Stop and disable dhcpcd.service

sudo systemctl disable dhcpcd.service sudo systemctl stop dhcpcd.service

Step 2: Start and enable the following common packages the next time you boot to ensure proper modem operation and to avoid interference.

sudo systemctl enable ModemManager.service sudo systemctl start ModemManager.service sudo systemctl enable NetworkManager.service sudo systemctl start NetworkManager.service

Step 3: Set up your mobile network by changing the APN address to your own.

sudo nmcli connection add type gsm ifname cdc-wdm0 con-name mymodem apn test.iot.de

Step: 4: Connect to the mobile network

Step 5: Restart operating system

Step 6: Check the assigned IP address and test the connection

Step 7: To test the connection

You will get something similar to that: