Linux 天翼3G上網

華為EC122

硬體資訊如下:

$ lsusb | grep -i Huawei Bus 003 Device 006: ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem $

這個3G網卡支援中國電信天翼3G标準CDMA2000 ，下載下傳核心網速剛開始為40K/S，然後彪到了200K+/S (不是在做廣告……)

筆者使用軟體平台為Debian5.02，系統具體參數為

$ cat /proc/version  Linux version 2.6.26-2-686 (Debian 2.6.26-19) ([email protected]) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Wed Aug 19 06:06:52 UTC 2009 $

1. 安裝驅動

插入3G網卡到USB接口後，GNU/Linux識别該硬體，自動将其挂載到 /media/ChinaTelecom 目錄下

$ pwd /media/ChinaTelecom $ ls -F AutoRun.exe*  autorun.inf*  autorun.sh*     Linux/  SysConfig.dat* autorun.ico*  autorun.ini*  install_linux*  setup/ $ ./install_linux

這樣，驅動就安裝好了……快吧

2. 配置撥号上網

筆者喜歡用 wvdial 同時管理 “3G、連手機藍牙、連手機USB” 3種撥号方式 ，是以下面介紹用 wvdial 3G撥号及其配置過程

先介紹配置過程:

插入3G網卡到USB接口後，待其識别該硬體，運作

$ sudo wvdialconf [sudo] password for c-aries:  Editing `/etc/wvdial.conf'. Scanning your serial ports for a modem. ... (省略) Found a modem on /dev/ttyUSB_utps_modem. Modem configuration written to /etc/wvdial.conf. ttyUSB_utps_modem<Info>: Speed 115200; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0" ttyUSB_utps_pcui<Info>: Speed 9600; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

這裡預設配置已寫入檔案 /etc/wvdial.conf 如下

$ cat /etc/wvdial.conf [Dialer Defaults] Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 Modem Type = Analog Modem ; Phone = <Target Phone Number> ISDN = 0 ; Username = <Your Login Name> Init1 = ATZ ; Password = <Your Password> Modem = /dev/ttyUSB_utps_modem Baud = 115200

修改成

[Dialer 3G] Phone = #777 Username = [email protected] Password = vnet.mobi

撥号運作指令

$ sudo wvdial 3g --> WvDial: Internet dialer version 1.60 --> Cannot get information for serial port. --> Initializing modem. --> Sending: ATZ ATZ OK --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 --> Modem initialized. --> Sending: ATDT#777 --> Waiting for carrier. ATDT#777 CONNECT --> Carrier detected.  Waiting for prompt. ~[7f]}#@!}!}!} }5}"}&} } } } }#}%B#}%}%}&&qe8@F~ --> PPP negotiation detected. --> Starting pppd at Sun Mar  7 09:44:49 2010 --> Pid of pppd: 26853 --> Using interface ppp0 --> pppd: ≒s HPs  --> local  IP address 113.113.169.226 --> remote IP address 10.10.88.48 --> primary   DNS address 202.96.128.86 --> secondary DNS address 220.192.32.103

撥号成功 : )

3. 附贈-我的wvdial.conf

[Dialer usb] Init2 = AT&FE0V1&C1S0=0 Init3 = AT+cgdcont=1,"IP","CMNET","",0,0 Password = 172 New PPPD = yes Phone = *99***2# Idle Seconds = 3000 Modem Type = USB Modem Stupid Mode = 1 Baud = 460800 Auto DNS = 1 Dial Command = ATD Ask Password = 0 Username = 172 FlowControl = NOFLOW Modem = /dev/ttyACM0 [Dialer bt] Modem Type = BlueTooth Modem Modem = /dev/rfcomm0