Re: AT&T Known Good HWIC-3G-GSM Config

cozzaenterprises · ‎05-05-2011

Because of the AT&T->Cincular->AT&T shuffle, a lot of examples have conflicting details about:

1) CHAT string *98 v.s. *99

2) APN Name in Celluar GSM Profile

3) PAP or CHAP authentiation

4) CHAP Username/password

Does anyone have a known-good working AT&T dialer config? Plese include cellular gsm profile.

At the moment, depending on which permutation of settings above I try, I get ICP errors

The one thing I haen't tried to do is call AT&T tech support and give them my IMEI number of the HWIC

#sh ver
Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 15.1(4)M, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 24-Mar-11 13:10 by prod_rel_team

------------

chat-script GSM "" "ATDT*99***1#" TIMEOUT 60 "CONNECT"

interface Cellular0/0/0
description T-Mobile or DEATH-FAST
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer in-band
dialer idle-timeout 999 either
dialer string GSM
dialer-group 1
no peer default ip address
async mode interactive
ppp authentication chap
ppp chap hostname ISP@CINGULARGPRS.COM
ppp chap password 0 CINGULAR1
ppp ipcp dns request
!

line 0/0/0
exec-timeout 0 0
script dialer GSM
login
modem InOut
no exec
transport preferred none
transport input all
transport output all
autoselect during-login
autoselect ppp
rxspeed 3600000
txspeed 384000

----------

sqhill# sh debug

General OS:
Modem control/process activation debugging is on
Dial on demand:
Dial on demand events debugging is on
PPP:
PPP authentication debugging is on
PPP authorization debugging is on
PPP protocol errors debugging is on
PPP protocol negotiation debugging is on

Chat Scripts:
Chat scripts activity debugging is on

----------

*May 6 03:57:37.867: Ce0/0/0 LCP: Event[Receive ConfNak/Rej] State[ACKsent to ACKsent]
*May 6 03:57:37.867: Ce0/0/0 LCP: I CONFREJ [ACKsent] id 9 len 9
*May 6 03:57:37.867: Ce0/0/0 LCP:    AuthProto CHAP (0x0305C22305)
*May 6 03:57:37.867: Ce0/0/0 LCP: O CONFREQ [ACKsent] id 10 len 25
*May 6 03:57:37.867: Ce0/0/0 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*May 6 03:57:37.867: Ce0/0/0 LCP:    AuthProto CHAP (0x0305C22305)
*May 6 03:57:37.867: Ce0/0/0 LCP:    MagicNumber 0x0D340D1D (0x05060D340D1D)
*May 6 03:57:37.867: Ce0/0/0 LCP:    PFC (0x0702)
*May 6 03:57:37.867: Ce0/0/0 LCP:    ACFC (0x0802)
*May 6 03:57:37.867: Ce0/0/0 LCP: Event[Receive ConfNak/Rej] State[ACKsent to ACKsent]
*May 6 03:57:37.871: Ce0/0/0 LCP: I CONFREJ [ACKsent] id 10 len 9
*May 6 03:57:37.871: Ce0/0/0 LCP:    AuthProto CHAP (0x0305C22305)
*May 6 03:57:37.871: Ce0/0/0 LCP: Received too many CONFREJs. Closing CP
*May 6 03:57:37.871: Ce0/0/0 PPP DISC: LCP failed to negotiate
*May 6 03:57:37.871: PPP: NET STOP send to AAA.
*May 6 03:57:37.871: Ce0/0/0 LCP: O TE.
Success rate is 0 percent (0/5)
br0.sqhill#RMREQ [ACKsent] id 11 len 4
*May 6 03:57:37.871: Ce0/0/0 LCP: Event[CLOSE] State[ACKsent to Closing]
*May 6 03:57:37.875: Ce0/0/0 LCP: I TERMACK [Closing] id 11 len 4
*May 6 03:57:37.875: Ce0/0/0 LCP: Event[Receive TermAck] State[Closing to Closed]
*May 6 03:57:37.875: Ce0/0/0 LCP: Event[DOWN] State[Closed to Initial]
*May 6 03:57:37.875: Ce0/0/0 PPP: Clearing AAA Unique Id = 1C
*May 6 03:57:37.875: Ce0/0/0 PPP: Phase is DOWN
*May 6 03:57:37.875: TTY0/0/0: Async Int reset: Dropping DTR
*May 6 03:57:38.279: TTY0/0/0: DSR was dropped
*May 6 03:57:38.279: tty0/0/0: Modem: READY->(unknown)
*May 6 03:57:39.283: TTY0/0/0: dropping DTR, hanging up
*May 6 03:57:39.283: tty0/0/0: Modem: HANGUP->(unknown)
*May 6 03:57:39.283: TTY0/0/0: cleanup pending. Delaying DTR
*May 6 03:57:39.875: %LINK-5-CHANGED: Interface Cellular0/0/0, changed state to reset
*May 6 03:57:39.875: Ce0/0/0 PPP: Sending cstate DOWN notification
*May 6 03:57:39.875: Ce0/0/0 PPP: Processing CstateDown message

Anyone post a working AT&T config please!

yuts · ‎05-06-2011

Please contact your AT&T acct team. They can provide you a copy of the AT&T CCS Router Configuration

Guide. It contains a sample configuration and explanation that will be helpful. If you

have access to AT&T Business Direct page, you can download the configuration guide as well.

cozzaenterprises · ‎05-06-2011

I was hoping that wouldn't be the case.

This is a cheap $25 pre-paid data plan on a SIM card that I walked in-and-out of a retail AT&T shop with.

Under $1000 (SIM + HWIC-3G-GSM) and I can just expense it.

I'm not even Alpha testing, this is just preliminary R&D. Was hoping that AT&T's network was sane and that any PPP/CHAP settings would be accepted assuming that I had the right APN selected and dialed the right number.

I'm not sure if I call AT&T pre-paid support that they'll even talk to me.

"Huh? Data? You want fancy ringtones? IPhone? The White One is the best!"

~BAS

cozzaenterprises · ‎05-07-2011

Turns out it was a provisioning issue with my IMEI/IMSI/ICCID against my SIM.

Had to blow another $50 getting it reactivated but yea, now it connects.

Unfortunately, I have the exact same problem as I had when I had a T-Mobile SIM card and data plan installed into the HWIC-3G-GSM

I'm only getting 15k/s when I should be getting 150k/s.

Its almost like the device is connecting at 2G frequency speeds and needs to be forced into HSDPA

~Brian

cozzaenterprises · ‎05-07-2011

AT&T's GSM network in North-East north america is really picky about getting all the settings just-right. If you're off by even just a little it wont connect (well, actually, it will connect just fine.

1) One must dial 99 not 98
chat-script GSM "" "ATDT*99***1#" TIMEOUT 60 "CONNECT"

2) You must use the right profile:

screwATT# cellular 0/0/0 gsm profile create 1 isp.cingular chap isp@cingular.com cingular1

3) Use these PPP->CHAP settings (Why this isn't PAP I dont know, but 1985 called and they want their Dos 6.22 back)

4) If you haven't setup the channels/bands right, you connect at 2G/Edge instead of 3G/HSDPA and you only get 15K/s (1995 called and they want their MPPP Shotgun modem back)

interface Cellular0/0/0
description T-Mobile or DEATH-FAST
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer in-band
dialer idle-timeout 999 either
dialer string GSM
dialer-group 1
async mode interactive
no ppp lcp fast-start
ppp chap hostname isp@cingular.com
ppp chap password 0 cingular1
ppp ipcp dns accept
end

br0.sqhill#sh cellular 0/0/0 all
Hardware Information
====================
Modem Firmware Version = H1_1_9_3MCAP C:/WS/
Modem Firmware built = 12/12/07
Hardware Version = 1.0
International Mobile Subscriber Identity (IMSI) = 310410394503891
International Mobile Equipment Identity (IMEI) = 352678013472573
Integrated Circuit Card ID (ICCID) = 89014103253945038913
Mobile Subscriber International Subscriber
IDentity Number (MSISDN) = 14123521592
Factory Serial Number (FSN) = D28015834581034
Modem Status = Online
Current Modem Temperature = 31 deg C, State = Normal
PRI SKU ID = 0, SKU Rev. = 20.0

Profile Information
====================
Profile 1 = ACTIVE*
--------
PDP Type = IPv4
PDP address = 166.203.156.199
Access Point Name (APN) = isp.cingular
Authentication = CHAP
Username: isp@cingular.com, Password: cingular1

* - Default profile

Data Connection Information
===========================
Data Transmitted = 479955 bytes, Received = 8702636 bytes
Profile 1, Packet Session Status = ACTIVE
        IP address = 166.203.156.199
Profile 2, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 3, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 4, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 5, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 6, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 7, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 8, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 9, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 10, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 11, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 12, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 13, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 14, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 15, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
Profile 16, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state

Network Information
===================
Current Service Status = Normal, Service Error = None
Current Service = Combined
Packet Service = HSDPA (Attached)
Packet Session Status = Active
Current Roaming Status = Home
Network Selection Mode = Automatic
Country = USA, Network = AT&T
Mobile Country Code (MCC) = 310
Mobile Network Code (MNC) = 410
Location Area Code (LAC) = 2607
Routing Area Code (RAC) = 1
Cell ID = 3684
Primary Scrambling Code = 457
PLMN Selection = Automatic
Registered PLMN = AT&T , Abbreviated =
Service Provider =

Radio Information
=================
Radio power mode = ON
Current Band = WCDMA 1900, Channel Number = 687
Current RSSI = -87 dBm
Band Selected = Auto

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