Arch Linux

gatlin

Member

Registered: 2008-11-06

Posts: 8

Verizon CDMA card

I am a relative newcomer to Arch Linux from Xubuntu, and I tried and tried to find this topic online and thus apologize if this is something fairly obvious.  That said ...

I have a Verizon CDMA card (model PC5750) on loan from work.  Under Xubuntu I found a tutorial which explained how to make the connection using Gnome-PPP (ergo wvdial) and when I tried to duplicate those steps, it didn't work.  I checked the log and it said exit-code 4.  So I did this

sudo modprobe ppp_generic

and also found a /etc/ppp/peers/provider file on these very forums.  I also added ppp0 to my interfaces list in /etc/rc.conf and set it to dhcp.  When I connect now it claims it is connected, but I can't ping anything and it appears to have merely tricked itself. 

I can post whatever is necessary.  Disclaimer: I had the network daemon off on startup (I never ever connect to the hardwired ethernet connection, wasted startup time) but did manually start it before attempting to connect.

The steps, by the way, that I performed under Xubuntu: http://ubuntuforums.org/showthread.php?p=4764866

aport

Member

From: San Diego

Registered: 2008-02-20

Posts: 99

Re: Verizon CDMA card

For CDMA cards I use the usbserial or airprime driver, which mounts the modem as /dev/ttyUSB0

edit: Use this guide. http://forums.fedoraforum.org/showthread.php?t=170664

Last edited by aport (2008-12-09 03:19:55)

gatlin

Member

Registered: 2008-11-06

Posts: 8

Re: Verizon CDMA card

Thank you very much, but unfortunately that did not exactly solve the problem.  I followed that guide to the T, and I get the following:

[gatlin@baruch ~]$ sudo wvdial
--> 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
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT
--> Carrier detected.  Starting PPP immediately.
--> Starting pppd at Tue Dec  9 06:55:12 2008
--> Pid of pppd: 2786
--> Using interface ppp0
--> pppd: ?'3 
--> pppd: ?'3 
--> pppd: ?'3 
--> local  IP address 70.197.2.99
--> pppd: ?'3 
--> remote IP address 66.174.184.64
--> pppd: ?'3 
--> primary   DNS address 69.78.96.14
--> pppd: ?'3 
--> secondary DNS address 66.174.92.14
--> pppd: ?'3

When I set up essentially the same settings in gnome-ppp, the connection reports that it is successful and even dutifully adds an icon to my system tray, but ping / Firefox cannot resolve any host names. 

I am not quite sure what is wrong.  To the best of my knowledge the ppp daemon was not running but I read on another forum about dialup that wvdial handles that for me.

edit: fwiw I have the stock Arch-provided kernel, and now have ppp0 commented out in the interfaces array in /etc/rc.conf, though I'm not sure how much that matters.  Additionally, changing /dev/ttyACM0 to /dev/input/ttyACM0 or rebooting the machine with the card in it has no noticeable effect.

Last edited by gatlin (2008-12-09 05:02:52)

aport

Member

From: San Diego

Registered: 2008-02-20

Posts: 99

Re: Verizon CDMA card

What is the output of:

ifconfig ppp0

route -n

gatlin

Member

Registered: 2008-11-06

Posts: 8

Re: Verizon CDMA card

ifconfig reported that it could find no such interface, and route -n started what looked like what would have been a table of values related to kernel-level network devices, but wrote nothing.

My hunch is that I am missing a kernel module of some kind, but I am lost.  Thank you for waiting so long! Was unavailable for a few days.