INSTALLING AND CONFIGURING USB 3G DATA ON CENTOS/RHEL

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In this tutorial, How to installing and configuring USB 3G/4G Data on CENTOS/RHEL.

INSTALLING AND CONFIGURING USB 3G DATA ON CENTOS/RHEL


To install wvdial usb_modeswitch usb_modeswitch packages for USB 3G modem.

$ sudo yum install wvdial usb_modeswitch-data usb_modeswitch

To check log

$ dmesg | grep tty

Plug and connected and detected for USB 3G modem on CENTOS/RHEL. To configure wvdial

$ vi /etc/wvdial.conf 

The content wvdial file as below

[Dialer 3gviettel]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CGDCONT=1,"IP","e-internet"
Stupid Mode = 1
Modem Type = Analog Modem
ISDN = 0
Phone = *99#
Modem = /dev/ttyUSB0
New PPPD = yes
Username = { }
Password = { }
Baud = 460800
Auto DNS = off
check DNS =no
Auto Reconnect = on

Loading module USB 3G/4G modem

$ modprobe usb_wwan usb-storage usbserial

Running wvdial for 3gviettel

$ wvdial 3gviettel &

Yeh, You can add DNS in /etc/resolv.conf file.

$ vi /etc/resolv.conf

The content resolv.conf as below

nameserver 8.8.8.8
nameserver 208.67.222.222

Debugging steps for USB 3G/4G Modem


To use usb-devices or lsusb command

$ usb-devices

Or

$ lsusb

Conclusion

Thought the article, How to "INSTALLING AND CONFIGURING USB 3G DATA ON CENTOS/RHEL" as above . You want to become Devops :) .  I hope will this your helpful.

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