Use Wvdial for connecting cellular network RPI

Sinamics

This explains the installation of wvdial on RPI . This is tested and working with Huawei 3276
First, install usb modeswitch

sudo apt-get install usb_modeswitch

Type lsusb to ensure that your modem is attached correctly. Note the 12d1:14fe (For Huawei 3276 modems) which is the ID
Save a file as /etc/usb_modeswitch.d/idVendor:idProduct where idVendor and idProduct are those currently appearing. In this example file would be called /etc/usb_modeswitch.d/12d1:14fe .

ltVendor=  0x12d1
DefaultProduct= 0x14fe
 
TargetVendor=  0x12d1
TargetProduct= 0x1506

MessageContent="55534243123456780000000000000011062000000100000000000000000000"

Reboot.
After inserting Huawei modem, type dmesg to verify that ttyUSB1 is registered.

image 1958810394557d52bed085a717236760.png

First download and install wvdial.

sudo apt-get install wvdial

Then edit the configuration file

sudo nano /etc/wvdial.conf

add the lines bellow, also remember to set correct APN

[Dialer Defaults]
Init1 = ATZ
Init2 = ATE1
Init3 = AT+CGDCONT=1,"IP","YOUR_APN"
Stupid Mode = 1
MessageEndPoint = "0x01"
Modem Type = Analog Modem
ISDN = 0
Phone = *99#
Modem = /dev/ttyUSB0
Username = { }
Password = { }
Baud = 460800
Auto Reconnect = on

To allow wvdial to connect automatically during reboot we need to edit interfaces.

sudo nano /etc/network/interfaces

add these lines

auto ppp0
iface ppp0 inet wvdial

After reboot, type ifconfig and verify that your PPP connection has assigned ip adress.

image 1832172238557d52c86c1c3897885178.png

Chuckster1

I'm not seeing ttyUSB1 being registered.

Does usb-modeswitch have to be installed? Also, cannot save the file as /etc/usb_modeswitch.d/12d1:14fe , because it is a directory...should this be /etc/usb_modeswitch.d/12d1:14fe.CONF?

Sinamics

Chuckster
Yes you need to install usb_modeswitch

sudo apt-get install usb_modeswitch

See also this link.
http://www.cmtsinfo.net/index.php?howto=3g

Chuckster1

I'm still not understanding this...

In this example file would be called /etc/usb_modeswitch.d/12d1:14fe

This is a directory, and cannot be saved. Is there a file extension that should be at the end of this? I'm probably missing something very simple.

Sinamics

Do you have a folder named 12d1:14fe under usb_modeswitch?
Goto folder /etc/usb_modeswitch.d/ and then try to create that file 12d1:14fe.

Derek_Arsenault

I tried

sudo apt-get update...

then.

pi@navio-rpi ~ $ sudo apt-get install usb_modeswitch
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package usb_modeswitch

Derek_Arsenault

Found the issue...I had to run this first:

sudo apt-get upgrade

Roberta_Gil_Cembrano

Hello Bernt, I have a question for you.
- Raspberry B+
- wheezy jessie image
- modem usb huawei k3765
- IP Public static

I have problem with start automatic wvdial when I boot the raspberry, I don´t have any problem if I type wvdial in line command, it´s ok, but I would like automatic this process.

I have made a script in /etc/init.d (I´ve copied skeleton and named it wvdial) and it start when I boot because with ps ax I watch the process but I haven´t got connection.

In the other side if I put in /etc/network/interfaces the lines that you say in this tutorial it don´t run neither. I´m sure that I´m doing anything incorrect but I don´t know what.
I´ve tried read lots information in google before ask you. Thank you very much for your teach and time.

Sinamics

Could you please post the /etc/network/interfaces content here.
You dont need any script in /init.d/ if you use interfaces.

Roberta_Gil_Cembrano

Hello Bernt, thanks

cat /etc/network/interfaces

source-directory /etc/network/interfaces.d 
auto ppp0
iface ppp0 inet wvdial

auto lo
iface lo inet loopback
 
iface eth0 inet manual
 
allow-hotplug wlan0
iface wlan0 inet manual
        wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
 
allow-hotplug wlan1
iface wlan1 inet manual
        wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

We erased the script how you said me. When I reboot the raspberry and type ifconfig it only show lo and eth0 connection but no ppp0

When I put ps ax console show me

319? S /usr/bin/wvdial,

Init the process but I have not connection.

Thanks.

Sinamics

Type this line just after reboot, and tell me what is says

cat /var/log/syslog | grep wvdial

Roberta_Gil_Cembrano

Thanks Bernt

cat /var/log/syslog | grep wvdial

Jan 9 23:19:42 raspberry pppd[725]: Can´t open options file /etc/ppp/peers/wvdial: Permission denied
Jan 10 02:11:27 raspberry systemd[1]: Starting LSB: wvdial 
Jan 10 02:11:27 raspberry systemd[1]: Started LSB: wvdial 
Jan 10 02:18:51 raspberry systemd[1]: Stopping LSB: wvdial 
Jan 10 02:19:05 raspberry systemd[1]: Starting LSB: wvdial 
Jan 10 02:19:05 raspberry systemd[1]: Started LSB: wvdial 
Jan 10 02:36:58 raspberry systemd[589]: Failed at step spawing /etc/init.d/wvdial: No such file or directory
pi@raspberrypi: $

How I read permission denied, I´ve typed chmod 755 in that file but the issue continue...

Sinamics

Check who is the owner of the file. It should be root.

ls -l /etc/ppp/peers/wvdial

Try to set correct persmission to wvdial.

chmod 644 /etc/ppp/peers/wvdial

Or you could try to add user root.

chown root.uucp /usr/sbin/pppd /usr/bin/wvdial

Sinamics

Are you using Wheezy or Jessie image? I never had this issue running Wheezy.

Roberta_Gil_Cembrano

Hello Bernt, I have Jessie image.

Try to set correct persmission to wvdial.

 chmod 644 /etc/ppp/peers/wvdial

I have now -rw-r--r-- 1 root root 30 May 23 2012 /etc/ppp/peers/wvdial
Done but Issue continue...i don´t have connection with wvdial on reboot

Or you could try to add user root.

chown root.uucp /usr/sbin/pppd /usr/bin/wvdial

Done but Issue continue...i don´t have connection with wvdial on reboot

Thanksss

Sinamics

hmm..
Strange. So try to remove the /etc/network/interfaces part.
Then create a script e.g

 nano modem.sh

and we use sudo to start wvdial. that will give us correct permissions.
Also try to add sleep value before execution of wvdial.

sleep 15
sudo wvdial

copy file to /etc/init.d/ and chmod 755 to the file.
To autostart during startup, do:

update-rc.d modem.sh defaults

Or did you try this already??

Roberta_Gil_Cembrano

Hello Bernt, thanksss, the solution is near....I´ve copied a script and type two lines at the end

sleep 15
sudo wvdial

Then I´ve named it modem.sh , chmod 755......., update-rc.d modem sh defaults and when I reboot the raspberry, it connect¡¡¡¡ It´s a great step.

For stop wvdial I´ve typed in command line sudo killall wvdial, the led of my modem turn off, then I´ve typed shutdown command for turn off the raspberry but during the process the led of my modem turn on and the raspberry turn off 4 minutes later, is normal??

Answer your question, I tried something similar but I´m sure that I didn´t remove /etc/network/interfaces part.

Thank you very much one more time

Sinamics

Thats great news. I dont know if that is normal or not. I always unplug the power cable when power down the pi.

Roberta_Gil_Cembrano

Hello Bernt, is possible know RSSI (and others data) from modem USB with a command, like AT+......?? Thank you very much