GPRS card connected to the GPRS network in Linux 2.6.15, can send SMS messages, but still no internet?

Hi there,

I have managed to get the Sony Ericsson GPRS GC89 card to connect to the
T-Mobile GPRS network in Linux 2.6.15 and I got messages like these from
pppd :

<beginning of messages from pppd>


Starting GPRS connect script...

Setting the abort string

Initializing modem
AT+cfun=1
OK
AT+cfun=1
OK
AT+cgreg=1
OK
Setting APN


+CGREG: 5
AT
OK
AT+CGDCONT=1,"IP","internet3.voicestream.com"
OK
Dialing...

AT+CGDCONT=2,"IP","internet3.voicestream.com"
OK
ATD*99***1#
CONNECTSerial connection established.
using channel 4
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS4
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x60 <mru 1500> <asyncmap 0x0> <auth pap> <magic
0x30bfe8> <pcomp> <accomp>]
No auth is possible
sent [LCP ConfRej id=0x60 <auth pap>]
rcvd [LCP ConfReq id=0x61 <mru 1500> <asyncmap 0x0> <magic 0x30bfe8> <pcomp>
<accomp>]
sent [LCP ConfAck id=0x61 <mru 1500> <asyncmap 0x0> <magic 0x30bfe8> <pcomp>
<accomp>]
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3
0.0.0.0>]
rcvd [LCP ProtRej id=0x62 80 fd 01 01 00 0c 1a 04 78 00 18 04 78 00]
rcvd [IPCP ConfReq id=0x60 <addr 72.250.5.0> <compress VJ 0f 01>]
sent [IPCP ConfRej id=0x60 <compress VJ 0f 01>]
rcvd [IPCP ConfNak id=0x1 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
66.94.25.120>]
sent [IPCP ConfReq id=0x2 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
66.94.25.120>]
rcvd [IPCP ConfReq id=0x61 <addr 72.250.5.0>]
sent [IPCP ConfAck id=0x61 <addr 72.250.5.0>]
rcvd [IPCP ConfAck id=0x2 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
66.94.25.120>]
not replacing existing default route to eth0 [192.168.1.1]
local IP address 72.250.5.8
remote IP address 72.250.5.0
primary DNS address 66.94.9.120
secondary DNS address 66.94.25.120
Script /etc/ppp/ip-up started (pid 10848)
Script /etc/ppp/ip-up finished (pid 10848), status = 0x0

</end of connection messages>


My connect script for pppd looks like:

###########################################
/dev/ttyS4
57600
lock
crtscts
methods
modem
defaultroute
user ""
password ""

noipdefault
usepeerdns
novj
noauth
persist
debug
nodetach
ipcp-max-configure 20
maxfail 0
connect "/usr/sbin/chat -v -V -t3 -f /etc/ppp/peers/chat-gprs"



So I apparently I have an ip address for my "ppp0" device in ifconfig:

ppp0 Link encap:Point-to-Point Protocol
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:2 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:190 (190.0 b) TX bytes:511 (511.0 b)


But I am apparently still not on the internet. Pinging anywhere doesn't
work. However, I can successfully send SMS messages when I log onto the card
using minicom and playing around with AT commands

I was hoping to consult with everyone on what might be the problem here. Did
I miss a specific step?

Thanks in advance!
I.S.

> Using interface ppp0
> Connect: ppp0 <--> /dev/ttyS4
> sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
> rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
> sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
> rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xbdf9233d> <pcomp> <accomp>]
> rcvd [LCP ConfReq id=0x60 <mru 1500> <asyncmap 0x0> <auth pap> <magic
> 0x30bfe8> <pcomp> <accomp>]
> No auth is possible
> sent [LCP ConfRej id=0x60 <auth pap>]
> rcvd [LCP ConfReq id=0x61 <mru 1500> <asyncmap 0x0> <magic 0x30bfe8> <pcomp>
> <accomp>]
> sent [LCP ConfAck id=0x61 <mru 1500> <asyncmap 0x0> <magic 0x30bfe8> <pcomp>
> <accomp>]
> sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15>]
> sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3
> 0.0.0.0>]
> rcvd [LCP ProtRej id=0x62 80 fd 01 01 00 0c 1a 04 78 00 18 04 78 00]
> rcvd [IPCP ConfReq id=0x60 <addr 72.250.5.0> <compress VJ 0f 01>]
> sent [IPCP ConfRej id=0x60 <compress VJ 0f 01>]
> rcvd [IPCP ConfNak id=0x1 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
> 66.94.25.120>]
> sent [IPCP ConfReq id=0x2 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
> 66.94.25.120>]
> rcvd [IPCP ConfReq id=0x61 <addr 72.250.5.0>]
> sent [IPCP ConfAck id=0x61 <addr 72.250.5.0>]
> rcvd [IPCP ConfAck id=0x2 <addr 72.250.5.8> <ms-dns1 66.94.9.120> <ms-dns3
> 66.94.25.120>]
> not replacing existing default route to eth0 [192.168.1.1]
> local IP address 72.250.5.8
> remote IP address 72.250.5.0
> primary DNS address 66.94.9.120
> secondary DNS address 66.94.25.120
> Script /etc/ppp/ip-up started (pid 10848)
> Script /etc/ppp/ip-up finished (pid 10848), status = 0x0
>

I think the problem is pppd is not replacing default route on your
system. Look at log "not replacing existing default route to eth0
[192.168.1.1]".

Try adding options "defaultroute" and "replacedefaultroute" to your
pppd configuration

--
Aniruddha

On Wed, 15 Feb 2006 16:35:55 -0800, "D2army" <(E-Mail Removed)> wrote:

>Hi there,
>
>I have managed to get the Sony Ericsson GPRS GC89 card to connect to the
>T-Mobile GPRS network in Linux 2.6.15 and I got messages like these from
>pppd :

Have you looked through the Sony Ericsson AT Commands manual and
properly set up your card to connect with your service provider?

http://www.cepag.de/GC85_GC89/PC%20C...ds_Rev%20B.pdf

Covers: GC75 GC79 GC82 GC83 GC85 and GC89 (and probably a lot more!)

Bill

D2army <(E-Mail Removed)> wrote:

> But I am apparently still not on the internet. Pinging anywhere doesn't
> work. However, I can successfully send SMS messages when I log onto the
> card using minicom and playing around with AT commands

how does your routing table (route -n) look like after the ppp connection
has been established?

Sven

--
"and on the third day he rebooted into Linux-1.3.84"
(Linus Torvalds, Easter Kernel Release 1996)

/me is giggls@ircnet, http://sven.gegg.us/ on the Web

D2army wrote:
> ...
> So I apparently I have an ip address for my "ppp0" device in ifconfig:
>
> ppp0 Link encap:Point-to-Point Protocol
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
> RX packets:6 errors:0 dropped:0 overruns:0 frame:0
> TX packets:11 errors:0 dropped:2 overruns:0 carrier:0
> collisions:0 txqueuelen:3
> RX bytes:190 (190.0 b) TX bytes:511 (511.0 b)
>
>
> But I am apparently still not on the internet. Pinging anywhere doesn't
> ...

where is the IP?

Hi Sven

yes, it is indeed a problem with the routing table, thanks. The connection
process is unable to modify the routing table for some reason when my
Ethernet is plugged in or enabled. I disabled the Ethernet, re-ran the
connection script, the routing table does gets modified and now the
connection works.

However, the connection is rather unstable for some reason. I observed that
if the network bandwidth gets too high(like around 113kbps) , the modem will
hang up and the connection will terminate. Then if the script tries to
reconnect and gets to the point of executing the AT+CGDCONT commands, I see
a CME Error 3 which means operation not allowed. I will then minicom to the
card and then try to do AT+CFUN=1 to reset the card, but after I execute
that command, everything else i execute afterwards will give a CME Error 513
which means Link Layer Error apparently

I am wondering if this has something to do with how I wrote my Connection
Script. The card connection is not this unstable when used in XP.

"Sven Geggus" <sven-im-(E-Mail Removed)> wrote in message
news:dt1i3a$cba$(E-Mail Removed)...
> D2army <(E-Mail Removed)> wrote:
>
>> But I am apparently still not on the internet. Pinging anywhere doesn't
>> work. However, I can successfully send SMS messages when I log onto the
>> card using minicom and playing around with AT commands
>
> how does your routing table (route -n) look like after the ppp connection
> has been established?
>
> Sven
>
> --
> "and on the third day he rebooted into Linux-1.3.84"
> (Linus Torvalds, Easter Kernel Release
> 1996)
>
> /me is giggls@ircnet, http://sven.gegg.us/ on the Web

D2army wrote:

> However, the connection is rather unstable for some reason. I
> observed that if the network bandwidth gets too high(like
> around 113kbps) , the modem will hang up and the connection
> will terminate. Then if the script tries to reconnect and gets
> to the point of executing the AT+CGDCONT commands, I see
> a CME Error 3 which means operation not allowed.

Unless I'm mistaken, your "AT+CGDCONT" needs to be executed once
only, when you first set your device up for your particular
carrier. That setting should then persist through sessions and
power-ups indefinitely.

John

Hi John

I believe you are right, but when pppd is going to do a reconnection after
getting disconnected, it will just call the same connect script. This means
those AT+CGDCONT commands will inevitably get called again.

Is it possible to just jump straight to dialing ( "ATD*99***1#" ) during a
reconnection? Is this the right thing to do anyway?

Thanks!
I.S.

"John Henderson" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> D2army wrote:
>
>> However, the connection is rather unstable for some reason. I
>> observed that if the network bandwidth gets too high(like
>> around 113kbps) , the modem will hang up and the connection
>> will terminate. Then if the script tries to reconnect and gets
>> to the point of executing the AT+CGDCONT commands, I see
>> a CME Error 3 which means operation not allowed.
>
> Unless I'm mistaken, your "AT+CGDCONT" needs to be executed once
> only, when you first set your device up for your particular
> carrier. That setting should then persist through sessions and
> power-ups indefinitely.
>
> John

D2army wrote:

> Is it possible to just jump straight to dialing (
> "ATD*99***1#" ) during a reconnection? Is this the right
> thing to do anyway?

That's what I do (Linux kppp dialer). Otherwise only an "ATZ"
command gets executed in my GPRS setup (Wavecom external modem
attached to /dev/ttyS0).

John

Yea, ATZ attempts to restore the card to the factory settings.

But sometimes if I get disconnected, and then I try to even do ATZ, I still
get a CME Error 513

By the way, is there a GUI version of a ppp program for Gnome? I think KPPP
is for KDE

Thanks

"John Henderson" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> D2army wrote:
>
>> Is it possible to just jump straight to dialing (
>> "ATD*99***1#" ) during a reconnection? Is this the right
>> thing to do anyway?
>
> That's what I do (Linux kppp dialer). Otherwise only an "ATZ"
> command gets executed in my GPRS setup (Wavecom external modem
> attached to /dev/ttyS0).
>
> John