Re: RS232 GSM Modem

[Tom <toabctl googlemail com>]

On Wed, 2010-06-02 at 00:54 -0700, Dan Williams wrote:
> Hmm, what are you using to connect with PPP?  If you're using
> NetworkManager, you can:
> 
> NM_PPP_DEBUG=1 NetworkManager --no-daemon
> 
> and get verbose PPP output which could help to debug the issue.
> 
> Note that PPP uses it's *own* baudrate, which you have to send to pppd
> on the command line.  So if we dont' set that correctly, PPP may not
> work.  But debug output from pppd including it's command-line options
> might help us figure that out. 

i set the baudrate for ppp (in my system-settings connection). The
output of NetworkManager (0.8 from debian testing repository) follows.
In this case i used the modem with a usb<->adapter on my Lenovo R400
laptop. But this should work, too.



NetworkManager: <info>  Activation (ttyUSB1) starting connection 'TC63'
NetworkManager: <info>  (ttyUSB1): device state change: 3 -> 4 (reason
0)
NetworkManager: <info>  Activation (ttyUSB1) Stage 1 of 5 (Device
Prepare) scheduled...
NetworkManager: <info>  Activation (ttyUSB1) Stage 1 of 5 (Device
Prepare) started...
NetworkManager: <info>  Activation (ttyUSB1) Stage 1 of 5 (Device
Prepare) complete.
NetworkManager: <info>  Activation (ttyUSB1) Stage 2 of 5 (Device
Configure) scheduled...
NetworkManager: <info>  Activation (ttyUSB1) Stage 2 of 5 (Device
Configure) starting...
NetworkManager: <info>  (ttyUSB1): device state change: 4 -> 5 (reason
0)
NetworkManager: <info>  Activation (ttyUSB1) Stage 2 of 5 (Device
Configure) successful.
NetworkManager: <info>  Activation (ttyUSB1) Stage 3 of 5 (IP Configure
Start) scheduled.
NetworkManager: <info>  Activation (ttyUSB1) Stage 2 of 5 (Device
Configure) complete.
NetworkManager: <info>  Activation (ttyUSB1) Stage 3 of 5 (IP Configure
Start) started...
NetworkManager: <info>  (ttyUSB1): device state change: 5 -> 7 (reason
0)
NetworkManager: <info>  Starting pppd connection
NetworkManager: <debug> [1275473061.909184] nm_ppp_manager_start():
Command line: /usr/sbin/pppd nodetach lock nodefaultroute debug user
vodafone ttyUSB1 noipdefault 57600 noauth usepeerdns lcp-echo-failure 0
lcp-echo-interval 0 ipparam /org/freedesktop/NetworkManager/PPP/0
plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so
NetworkManager: <debug> [1275473061.971552] nm_ppp_manager_start(): ppp
started with pid 7242
NetworkManager: <info>  Activation (ttyUSB1) Stage 4 of 5 (IP6 Configure
Get) scheduled...
NetworkManager: <info>  Activation (ttyUSB1) Stage 3 of 5 (IP Configure
Start) complete.
NetworkManager: <info>  Activation (ttyUSB1) Stage 4 of 5 (IP6 Configure
Get) started...
NetworkManager: <info>  Activation (ttyUSB1) Stage 4 of 5 (IP6 Configure
Get) complete.
Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so loaded.
** Message: nm-ppp-plugin: (plugin_init): initializing
** Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial
connection'
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB1
** Message: nm-ppp-plugin: (nm_phasechange): status 5 / phase
'establish'
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x74efb434> <pcomp>
<accomp>]
NetworkManager:    SCPlugin-Ifupdown: devices added
(path: /sys/devices/virtual/net/ppp0, iface: ppp0)
NetworkManager:    SCPlugin-Ifupdown: device added
(path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown
configuration found.
rcvd [LCP ConfNak id=0x1 <asyncmap 0xa0000>]
sent [LCP ConfReq id=0x2 <asyncmap 0xa0000> <magic 0x74efb434> <pcomp>
<accomp>]
rcvd [LCP ConfAck id=0x2 <asyncmap 0xa0000> <magic 0x74efb434> <pcomp>
<accomp>]
rcvd [LCP ConfReq id=0x3 <mru 1600> <auth pap> <magic 0xb9051aaa>
<asyncmap 0xa0000> <pcomp> <accomp>]
sent [LCP ConfAck id=0x3 <mru 1600> <auth pap> <magic 0xb9051aaa>
<asyncmap 0xa0000> <pcomp> <accomp>]
** Message: nm-ppp-plugin: (nm_phasechange): status 6 / phase
'authenticate'
** Message: nm-ppp-plugin: (get_credentials): passwd-hook, requesting
credentials...
** Message: nm-ppp-plugin: (get_credentials): got credentials from
NetworkManager
sent [PAP AuthReq id=0x1 user="vodafone" password=<hidden>]
rcvd [PAP AuthAck id=0x1 "TTP Com PPP - Password Verified OK"]
Remote message: TTP Com PPP - Password Verified OK
PAP authentication succeeded
** Message: nm-ppp-plugin: (nm_phasechange): status 8 / phase 'network'
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1
0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP ProtRej id=0x0 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03
2f 32]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
rcvd [LCP TermReq id=0x0 "Normal Termination by NCP"]
LCP terminated by peer (Normal Termination by NCP)
** Message: nm-ppp-plugin: (nm_phasechange): status 5 / phase
'establish'
sent [LCP TermAck id=0x0]
** Message: nm-ppp-plugin: (nm_phasechange): status 11 / phase
'disconnect'
Connection terminated.
NetworkManager: <info>  (ttyUSB1): device state change: 7 -> 9 (reason
13)
NetworkManager: <info>  Marking connection 'TC63' invalid.
NetworkManager: <info>  Activation (ttyUSB1) failed.
NetworkManager: <info>  (ttyUSB1): device state change: 9 -> 3 (reason
0)
NetworkManager: <info>  (ttyUSB1): deactivating device (reason: 0).
NetworkManager: <info>  Policy set 'Auto eth0' (eth0) as default for
routing and DNS.
NetworkManager:    SCPlugin-Ifupdown: devices removed
(path: /sys/devices/virtual/net/ppp0, iface: ppp0)
** Message: nm-ppp-plugin: (nm_phasechange): status 1 / phase 'dead'
Terminating on signal 15
Modem hangup
** Message: nm-ppp-plugin: (nm_exit_notify): cleaning up
NetworkManager: <debug> [1275473069.000649] ensure_killed(): waiting for
ppp pid 7242 to exit
NetworkManager: <debug> [1275473069.000782] ensure_killed(): ppp pid
7242 cleaned up



My config is:

tom banane:/etc/NetworkManager/system-connections$ sudo cat TC63 

[connection]
id=TC63
uuid=2c0d314f-a2a5-4a3a-aac8-a92c575350c4
type=gsm
autoconnect=false
timestamp=0

[ppp]
noauth=true
refuse-eap=false
refuse-pap=false
refuse-chap=false
refuse-mschap=false
refuse-mschapv2=false
nobsdcomp=false
nodeflate=false
no-vj-comp=false
require-mppe=false
require-mppe-128=false
mppe-stateful=false
crtscts=false
baud=57600
mru=0
mtu=0
lcp-echo-failure=0
lcp-echo-interval=0

[ipv4]
method=auto
ignore-auto-routes=false
ignore-auto-dns=false
dhcp-send-hostname=false
never-default=false

[gsm]
number=*99#
username=vodafone
password=vodafone
apn=web.vodafone.de
network-type=-1
band=-1
pin=1234
allowed-bands=1

[serial]
baud=57600
bits=8
parity=110
stopbits=1
send-delay=0