通過wvdial完成4G自動撥号上網

先安裝wvdial：

sudo apt-get install wvdial           

wvdial需要一個撥号配置檔案：

/etc/wvdial.conf           

移動卡或者電信卡配置檔案如下：

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0
Init3 = AT+CGDCONT=1,"IP","3gnet"
Modem Type = Analog Modem
Baud = 9600
New PPPD = yes
Modem = /dev/ttyUSB0
ISDN = 0
Phone = *99#
Password = card
Username = card
Auto DNS = on
           

聯通卡配置檔案如下：

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0
Init3 = at+cgdcont=1,"ip","uninet"
Modem Type = Analog Modem
Baud = 9600
New PPPD = yes
Modem = /dev/ttyUSB0
ISDN = 0
Phone = *99#
Password = card
Username = card           

儲存後退出，背景執行wvdial:

wvdial&