Att 3G on Ubuntu

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This is how I got my ATT (Cingular) Sierra Wireless 3G card running on Ubuntu

Contents

[edit] Pre-configure info

Ubuntu Version

Linux D430-Chad 2.6.22-14-generic #1 SMP Tue Dec 18 08:02:57 UTC 2007 i686 GNU/Linux

Sierra Card Version

Sierra Wireless AirCard 875

Laptop

Dell Latitude D430

The drivers are already part of this distribution so I did not use anything from the sierra website

Check if you drivers are available

modinfo sierra

Look for the following in the output (or something similar)

filename: /lib/modules/2.6.22-11-generic/kernel/drivers/usb/serial/sierra.ko
license: GPL
version: v.1.0.6
description: USB Driver for Sierra Wireless USB modems
author: Kevin Lloyd srcversion: DF9B9270E7912A55059D7CC…

[edit] Configuring

Next simply create 3 files First:

vi /etc/ppp/peers/cingular

Past the following:

hide-password
noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/cingular"
debug
/dev/ttyUSB0
115200
defaultroute
noipdefault
user "WAP@CINGULARGPRS.COM"
remotename cingular
ipparam cingular
usepeerdns

Second:

vi /etc/chatscripts/cingular

Past the following

ABORT BUSY ABORT 'NO CARRIER' ABORT VOICE ABORT 'NO DIALTONE' ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT DELAYED
'' "ATZ" 'OK' 'AT+CGDCONT=1,"IP","ISP.CINGULAR"'
OK-AT-OK "ATDT*99***1#"
CONNECT \d\c

Third:

vi /etc/ppp/chapsecrets

Past the following:

"WAP@CINGULARGPRS.COM" * "cingular1"

[edit] Connecting

Plug the card into the PCMCIA slot on your machine and wait for the blue power light to steady and for a pale red light to activate next to the 2G or 3G symbols. Once that happens, type

pon cingular 

into a terminal window and you should be off and running.

Once the pale red light turns from red to blue, you’re connected.

If you want to watch what it’s doing, open up a terminal window and type

sudo tail -f /var/log/messages

[edit] Reference

http://redmonk.com/sogrady/?p=1750&akst_action=share-this
http://www.sierrawireless.com/faq/ShowFAQ.aspx?ID=601
http://www.itguyonline.com/blog/2007/03/14/cingular-aircard-875-2/
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