USB Connect LPWA can perform dial-up network (DUN) connections supporting the Point-to-Point Protocol (PPP). Below we give an example of how you can connect to the Internet using app WvDial. WvDial is a Point-to-Point Protocol Dialer: it dials a modem and starts PPP in order to connect to the Internet.
Step 1: Install wvdial
sudo apt install wvdial
Step 2: Edit /etc/wvdial.conf for the follows
[Dialer Defaults] Init1 = ATZ Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 Init3 = AT+CGDCONT=1,"IP","lpwa.vodafone.com" Username = gdsp Password = gdsp Phone = *99***1# New PPPD = yes Modem Type = Analog Modem Stupid Mode = 1 CarrierCheck = No Check DNS = 1 Dial Command = ATD Modem = /dev/ttyUSB1 ISDN = 0 Baud = 115200 ; Phone = <Target Phone Number> ; Password = <Your Password> ; Username = <Your Login Name>
Change APN lpwa.vodafone.com and modem port /dev/ttyUSB1 to your own
Step 3: Start connection via command
The module must be attached to the network before starting the WvDial.
sudo wvdial
Step 4: Wait for connection
pi@raspberrypi:~ $ sudo wvdial --> WvDial: Internet dialer version 1.61 --> Initializing modem. --> Sending: ATZ ATZ OK --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 ATQ0 V1 E1 S0=0 &C1 &D2 OK --> Sending: AT+CGDCONT=1,"IP","lpwa.vodafone.com" AT+CGDCONT=1,"IP","lpwa.vodafone.com" OK --> Modem initialized. --> Sending: ATD*99***1# --> Waiting for carrier. ATD*99***1# CONNECT 150000000 --> Carrier detected. Starting PPP immediately. --> Starting pppd at Tue Feb 28 13:35:55 2023 --> Pid of pppd: 1627 --> Using interface ppp0 --> local IP address 100.97.28.119 --> remote IP address 10.64.64.64 --> primary DNS address 217.14.160.130 --> secondary DNS address 217.14.164.35
To exit the connection, enter the command CTRL+C
Troubleshooting
Sometimes it may happen that WvDial exits without closing the PPP interface. This means that when WvDial is restarted, it will no longer work properly. The following application helps restart USB Connect LPWA to close the PPP interface.
Step 1: Install libqmi-utils
sudo apt install libqmi-utils
Step 2: Reset USB Connect LPWA
sudo qmicli --device=/dev/cdc-wdm0 --dms-set-operating-mode="reset"