Problems to active HWIC-3G-GSM service

Answered Question
Apr 18th, 2010

hi I configured in a isr 2801 an HWIC-3G-GSM with next configuration but service don get up(I need to access to internet with service), this is my config and this are datas that my ips provide me, somebody help me?

ISP datas:

username: user1
password: pass1
APN: apn.com
autenticacion: PAP
Dial access: *99#

Cellular prifile: 3


chat-script gsm "" "ATDT*99*3#"   !!I don't understand this line :S
!
!
!
interface Cellular0/3/0
ip address negotiated
encapsulation ppp
dialer in-band
dialer idle-timeout 30
dialer string gsm
dialer-group 1
async mode interactive
ppp authentication pap chap callin
ppp pap sent-username user1 password 0 pass1
ppp ipcp dns request
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Cellular0/3/0
no ip http server

access-list 1 permit any
dialer-list 1 protocol ip list 1
!
line 0/3/0
exec-timeout 0 0
password 12345
script dialer gsm
login
modem InOut
no exec

I have this problem too.
0 votes
Correct Answer by jennyjohn about 6 years 7 months ago

Nice to know that.

If any of the answers helped you, do rate it and mark as correct answers.

Good Luck.

Correct Answer by jennyjohn about 6 years 7 months ago

Daniel,

The isp has already given you all the necessary information you need. You need

to create a profile using this information.

RTR(config)#do cellular 0/3/0 gsm profile create 4 apn.com pap user1 pass1
!
RTR(config)#chat-script gsm "" "ATDT*99*#4" TIMEOUT 60 "CONNECT"

If you are not getting public IP address to you cellular interface, then your

PAP authentication is not working. You could use the debug ppp command to

debug the problem.

Yes you will need to connect a host to generate traffic.

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Overall Rating: 4.5 (4 ratings)
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Giuseppe Larosa Sun, 04/18/2010 - 05:17

Hello Daniel,

you can use

debug ppp negotiation

debug ppp authentication

to see what is going wrong

on a telnet/SSH session you need to give the command

terminal monitor

to see debug messages

post the debug output as a text file using the attach file option

A reference to HWIC configuration guide

http://www.cisco.com/en/US/partner/docs/routers/access/1800/1861/software/feature/guide/3ghwic.html#wp1119180

see the section configuring a modem profile

cellular  gsm profile create 
<profile number>

this part is missing in your configuration

Hope to help

Giuseppe

Daniel Azuara Torres Mon, 04/19/2010 - 10:28

giuslar,

I am connected to router by console with loggin console command and loggin monitor debug actived but no negotiation is desplayed. The link that provied me I have it but was my reference.

jennyjohn Sun, 04/18/2010 - 05:33

A chat-script need to be entered for the modem to initialize connection and the profile to be used also has to be mentioned.
chat-script gsm "" "ATDT*99*#7" TIMEOUT 60 "CONNECT"
Here 7 is the profile number. If the required profile is the default profile - then this can be left out.
If you are getting a public IP address for the cellular interface, you have to initiate traffic then only the interface will work.

Daniel Azuara Torres Mon, 04/19/2010 - 10:34

jennyjhon,

I don't understand what parameters the isp must to provide me to configure this line:

chat-script gsm "" "ATDT*99*#7" TIMEOUT 60 "CONNECT"

I mut to put "" ""ATDT, isp to provide me this?

ISP told me tha *99# is to stablish call, then how must to config chat-script gsm command?

Note: I don´t getting public IP addres, then I need to connect a host to generate traffic?

Correct Answer
jennyjohn Mon, 04/19/2010 - 12:26

Daniel,

The isp has already given you all the necessary information you need. You need

to create a profile using this information.

RTR(config)#do cellular 0/3/0 gsm profile create 4 apn.com pap user1 pass1
!
RTR(config)#chat-script gsm "" "ATDT*99*#4" TIMEOUT 60 "CONNECT"

If you are not getting public IP address to you cellular interface, then your

PAP authentication is not working. You could use the debug ppp command to

debug the problem.

Yes you will need to connect a host to generate traffic.

Daniel Azuara Torres Mon, 04/19/2010 - 14:37

jennyjohn,

I configured this command but not work, then I verifed apn, user and pass and they are correct, debub ppp athentication and debug ppp negotiation don't display output (I have loggin console enabled).

jennyjohn Mon, 04/19/2010 - 21:44

Can you send the output of show cellular 0/3/0 all?

You have to enable the debugs, then on the cellular interface do a shut and then a no shut, then see if any pap authentication is taking place.

Daniel Azuara Torres Tue, 04/20/2010 - 15:52

All its ok now, the problem was ISP because gave me error datas, with this line works fine:

chat-script gsm "" "ATDT*98#" TIMEOUT 30 "CONNECT"

Thanks.

Correct Answer
jennyjohn Wed, 04/21/2010 - 07:07

Nice to know that.

If any of the answers helped you, do rate it and mark as correct answers.

Good Luck.

Daniel Azuara Torres Thu, 04/22/2010 - 08:57

I had douts in how to rate your answer, I did this correct?

I'm sorry for the questions but I am new in this

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