[c-nsp] Cisco 881G gprs connection problem

[Andrey Kozlov]

Hi,

Is anyone here have successful deployment of Cisco 881G router in gsm
network (EDGE)? I'm looking for advise, please help :)

According to this sources (
http://inetpro.org/wiki/Initial_configuration_of_a_881G_router_Cellular_interfaceand
http://www.cisco.com/en/US/docs/routers/access/800/860-880-890/software/configuration/guide/backup.html#wp1064962
)

I've
- unlock SIM
- created gsm-profile on modem
- created chat script
- describe interesting traffic
- configured cellular interface & line

When some ip packets arrives toward gprs-network, cellular0 interface
becomes up (L1 & L2), but, at the same time, gsm-profile still inactive and
the ip address for cellular0 remains unassigned.

wan-rok#show ip interface brief
Interface                  IP-Address      OK? Method Status
Protocol
Cellular0                  unassigned      YES NVRAM  up
up

wan-rok#show cellular 0 profile
Profile 2 = INACTIVE
--------
PDP Type = IPv4
Access Point Name (APN) = xl.kyivstar.net
Authentication = PAP
Username: internet, Password: internet


The biggest question is why state of gsm-profile remains inactive? How I can
debug what happens with packet session?

Thanks in advance.


Config details:

! The dial-string refers second gsm-profile
!
chat-script gsm "" "ATDT*99*2#" TIMEOUT 60 "CONNECT"
!
!  configuration of the data interface
!
interface Cellular0
 ip address negotiated
 encapsulation ppp
 dialer in-band
 dialer idle-timeout 0
 dialer string gsm
 dialer-group 1
 async mode interactive
 no ppp lcp fast-start
 ppp authentication pap
 ppp pap sent-username internet password 7 0828425A0C0B0B1206
 ppp ipcp dns request
!
! configuration of the control channel
!
line 3
 exec-timeout 0 0
 script dialer gsm
 modem InOut
 no exec
 transport input all
 transport output all
 rxspeed 236800
 txspeed 118000
!
! traffic definition
!
dialer-list 1 protocol ip permit
!
!
ip route 0.0.0.0 0.0.0.0 cellular 0


Diagnostic data from modem:

wan-rok#show cellular 0 all
Hardware Information
====================
Modem Firmware Version = F1_2_3_15AP C:/WS/F
Modem Firmware built = 07/09/08
Hardware Version = 1.1
Modem Status = Online
Current Modem Temperature = 29 deg C, State = Normal


Network Information
===================
Current Service Status = Normal, Service Error = None
Current Service = Combined
Packet Service = EDGE (Attached)
*Packet Session Status = Inactive*
Current Roaming Status = Home
Network Selection Mode = Manual
Country = UKR, Network = UA-KS
Mobile Country Code (MCC) = 255
Mobile Network Code (MNC) = 3
Location Area Code (LAC) = 47100
Routing Area Code (RAC) = 1
Cell ID = 6634
Primary Scrambling Code = 0
PLMN Selection = Manual
Registered PLMN = UA-KYIVSTAR , Abbreviated = UA-KS
Service Provider = KYIVSTAR

Radio Information
=================
Current Band = GSM 1800, Channel Number = 642
Current RSSI = -70 dBm
Band Selected = GSM all band

Modem Security Information
==========================
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of Retries remaining = 3


I've read probably all solutions that google can find, but any solution
doesn't resolve the problem.