On Fri, Mar 2, 2012 at 4:49 PM, Roger <arelem@bigpond.com> wrote:
On 03/03/12 00:21, Antonio Olivares wrote:

--- On Fri, 3/2/12, Roger<arelem@bigpond.com>  wrote:

From: Roger<arelem@bigpond.com>
Subject: Re: Need help USB modem
To: users@lists.fedoraproject.org
Date: Friday, March 2, 2012, 4:17 AM
I have the laptop here at home for
the weekend and still have trouble getting the Sierra
aircard 312U modem to work.

Following instruction on the Sierra site: http://www.sierrawireless.com/Support/SupportCenter.aspx

-Have installed the kernel module provided by Sierra for the
latest kernel.
-modinfo sierra shows the correct version

-modinfo-sierra_net shows that ist's installed in
/lib/modules/x/x/x/x/x/x/sierra_net.ko

-ls /dev/ttyUSB* shows /dev/ttyUSB0 to3

ifconfig does not show the usb,
it only has etho, lo and wlan0 so now I'm stuck as to where
to go from here.

Can someone please advise
thanks in advance
Roger




-- users mailing list
As a root user,
$ su -
passwd:

do the following:

# wvdialconf /etc/wvdial.conf

it will scan for modem port, and hopefully it finds /dev/ttyUSB0 or your true modem port.  Edit the file /etc/wvdial.conf as root user and add your username, password and ISP phone number(Your isp that you use to connect), then add a line "Carrier Check = no", "Stupid Mode = yes" to the /etc/wvdial.conf file and save it.  Then, as root user do

# wvdial

and it should attempt to connect to the internet with that information that you have input into the wvdial.conf file.  If all is well you should see something like CONNECTED and some numbers (nameservers ) add these numbers to /etc/resolv.conf and you should happily browse with your shiny new USB modem.  Hope this helps.

Thanks Antonio and Rick
This is where I got to last night and this morning.
Have tried in both Fedora 16 and Ubuntu oneric. Ubuntu is on the student's laptop.

sudo wvdial reports:

--> WvDial: Internet dialer version 1.61
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT+CGDCONT=1, "IP", "telstra.internet"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
CONNECT 21000000
--> Carrier detected.  Starting PPP immediately.
--> Starting pppd at Sat Mar  3 09:21:43 2012
--> Pid of pppd: 1965
--> Using interface ppp0
--> Disconnecting at Sat Mar  3 09:21:45 2012
--> The PPP daemon has died: A modem hung up the phone (exit code = 16)
--> man pppd explains pppd error codes in more detail.
--> Try again and look into /var/log/messages and the wvdial and pppd man pages for more information.
--> Auto Reconnect will be attempted in 5 seconds
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT+CGDCONT=1, "IP", "telstra.internet"
OK
--> Modem initialized.

It then repeats the above a number of times.

^CCaught signal 2:  Attempting to exit gracefully...
--> Disconnecting at Sat Mar  3 09:21:49 2012

I have tried both telstra.bigpond and telstra.internet, makes no difference.


Roger

--
users mailing list

It sounds like you are making some progress at least.  I came across this while looking for more information:

http://us.generation-nt.com/answer/sierra-aircard-312u-not-connecting-help-203152682.html

Which basically says that the usb device address is incorrect and needs to be changed.  

Try using different USB device files in /etc/sysconfig/network-scripts/ifcfg-ppp0

The line of interest is MODEMPORT=/dev/ttyUSB3
 
See if maybe ttyUSB0, ttyUSB1, or ttyUSB2 work instead (provided it is using ttyUSB3).