Re: Cisco 881G 3G interface config.

jopetik09 · ‎03-01-2011

Hi All,

I have a router Cisco 881G, DSL was running.
Yesterday we got 3G, now I need to config to get work 3G and also failover between DSL and 3G.
I hope someone will provide me step by step to achive above would be appreciate.

Below are some outputs for more inforamiton:

#sh cellular 0 secu
Card Holder Verification (CHV1) = Enabled
SIM Status = Locked
SIM User Operation Required = Enter CHV1
Number of Retries remaining = 3

#sh cellular 0 profil
Profile 1 = INACTIVE*
--------
PDP Type = IPv4
Access Point Name (APN) = web.vodafone.de
Authentication = CHAP
Username: internet, Password: tm

* - Default profile

#sh int cell
CuxhavenRTR#sh int cellular 0
Cellular0 is down, line protocol is down
Hardware is 3G Modem-HSPA/UMTS/EDGE/GPRS-850/900/1800/1900/2100MHz / Global
MTU 1500 bytes, BW 384 Kbit/sec, DLY 100000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Closed, loopback not set
Keepalive not supported
Last input never, output never, output hang never
Last clearing of "show interface" counters 1w5d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations 0/0/16 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 288 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
     DCD=up DSR=up DTR=up RTS=up CTS=up

#sh cellular 0 net
Current Service Status = Emergency Only, Service Error = None
Current Service = Invalid
Packet Service = None
Packet Session Status = Inactive
Current Roaming Status = Home
Network Selection Mode = Automatic
Country = DEU, Network = TMO D
Mobile Country Code (MCC) = 262
Mobile Network Code (MNC) = 1
Location Area Code (LAC) = 16683
Routing Area Code (RAC) = 1
Cell ID = 4370
Primary Scrambling Code = 347
PLMN Selection = Automatic
Available PLMNs:
PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = , Network = Unknown

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = Supports GPRS, Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = , Network = GSM

PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = , Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = , Network = Unknown

PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = Unknown

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = , Network = Unknown

PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = GSM

Thanks in advance.
Jopeti.

sean_evershed · ‎03-01-2011

Hi,

See below this link for the 3G component. It is focussed on configuring the router for an Australian telco but at least it will give you are starting point.

I suggest that you ask your carrier if they have a similar guide.

http://whirlpool.net.au/wiki/3g_for_network_engineers

For failover do you plan to run static or dynamic routes across your links?

Please remember to rate all posts that are helpful

jopetik09 · ‎03-01-2011

Hi,

Thanks for the response.

The link given some basic idea but if possible give me here what and all step by step i need to configure in my router 881.

And what all information shall I get from my provider (T mobile)?

We would like to use static routes.

Jopeti.

Mohammed Al-odhari · ‎04-26-2013

Dear Sir,

I have a new 8881G-w router with the following info:

(C880DATA-UNIVERSALK9-M), Version 12.4(22)YB2,

when I tried to login to the Cellular interface it shows me the following

warning- (what it means):

Warning: 3G Modem is not inserted

Configuration will not be effective until modem is inserted.

I only need to confiure CDMA,, is the 3G card needed, as i know 3G is needed

for GSM???

thanks

Pratikkumar Gandhi · ‎03-01-2011

Hi,

I hope below link will help you.

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6555/ps6815/config_guide_eem_configuration_for_cisco_integrated_services_router_platforms.html

Go to the Example 3 on the link. You will see the perfect solution.

jopetik09 · ‎03-04-2011

Hi,

Thanks for the informaiton.
What I would like to know is... What informaiton should I get from the 3G provider (T-mobile) inorder to activate the 3G modem and configure cellular interface?

thanks in advance.

Jopeti.

Frank Woodyard · ‎03-14-2011

Hello Jopeti,

First things first, you need an account and a SIM from T-Mobile. Your "show cell 0 network" indicates you do not have a valid account/SIM or possibly the SIM is not installed.

#sh cellular 0 net
Current Service Status = Emergency Only, Service Error = None
Current Service = Invalid

Please post a "show cell 0 all" to this thread.

Secondly, T-Mobile is not a supported carrier in North America for supported carriers the list is at;

http://www.cisco.com/en/US/prod/routers/ps380/ps10082/3G_wireless_carriers_880G.html#~north-america

A good basic config is as follows;

1) Setup the profile in the modem. To do this you need the APN, Hostname, and password from your carrier.

! The "cellular 0 gsm profile create" command is executed in the privelege exec prompt/mode.

router# cellular 0 gsm profile create 1 ipv4 chap

2) In Config T mode;

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

!

interface Cellular 0

ip address negotiated

encapsulation PPP

dialer in-band

dialer string gsm

dialer-group 1

async mode interactive

ppp chap hostname cisco@wwan.ccs ! This is utilized strictly internal to the router to authenticate to the modem. It can be nearly anything.

ppp chap password 0 cisco ! This is utilized strictly internal to the router to authenticate to the modem. It can be nearly anything.

ppp ipcp dns request

no shut

exit

!

int loop 0

ip address 192.168.1.1 255.255.255.0

!

ip route 0.0.0.0 0.0.0.0 cellular 0

!

access-list 1 permit any

dialer-list 1 protocol ip list 1

!

line 3

exec

exec-timeout 0 0

sript dialer gsm

modem inout

login

end

copy running-config startup-config

! Notes:

! The chat-script name "gsm" must be reflected in 3 places (the chat-script command);

! 1) The cellular 0 interface "dialer string" command

! 2) In the Line 3 configuration command "script dialer"

! 3) The variable "gsm" is just convenient but, can be any text string but,

! must match in all 3 places.

! The Cellular interface 0 utilizes the LINE 3 to communicate with the router. This is why configuration of LINE 3 is important.

!
! The router should be configured and able to acces the cellular card, attempt to ping 4.2.2.2

!

! Debugs;

! Make sure that "logging console" is enabled in config t mode.

term mon

! From Executive mode start the following debugs.

debug chat

debug modem

debug dialer

debug ppp negotiation

debug ppp authentication

! To turn off the debugs;

un all

If the above does not work, you will need to supply the following diagnostic commands;

Show cellular 0 radio history all - Notice the graphs, acceptable signal level is greater than -90dBm and less than -60dBm.

Show cellular 0 all

Show int cell 0

Show running-config

jopetik09 · ‎03-15-2011

Hi Frank,

Regarding chat-script, do i need to get anything from my provider (T-mobile) or the one you mentioned in your post is enough?
And regarding ppp chap hostname cisco@wwan.ccs and ppp chap password 0 cisco can I choose anything or these should I get from my provider (T-mobile)?

*********************************************
And I dont understand what you mean below...

Notes:

! The chat-script name "gsm" must be reflected in 3 additonal places;

! 1) The cellular 0 interface "dialer string" command

! 2) In the Line 3 configuration command "script dialer"

! 3) Also in the cellular profile create command that is executed in privelege mode.

! 4) The variable "gsm" is just convenient but, can be any text string but,

! must match in all 4 commands.

*********************************************

Please find the below latst output.

#sh cellular 0 net
Current Service Status = Normal, Service Error = None
Current Service = Circuit Switched
Packet Service = UMTS/WCDMA
Packet Session Status = Inactive
Current Roaming Status = Home
Network Selection Mode = Manual
Country = DEU, Network = TMO D
Mobile Country Code (MCC) = 262
Mobile Network Code (MNC) = 1
Location Area Code (LAC) = 6036
Routing Area Code (RAC) = 1
Cell ID = 4024
Primary Scrambling Code = 365
PLMN Selection = Manual
Registered PLMN = , Abbreviated =
Service Provider = T-Mobile D
Available PLMNs:
PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = Unknown

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = , Network = Unknown

PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = GSM

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = Supports GPRS, Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = Supports GPRS, Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = , Network = Unknown

PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = Home,, Network = GSM

PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = Home,, Network = Unknown

#show cell 0 all
Hardware Information
====================
Modem Firmware Version = F1_2_3_22AP C:/WS/F
Modem Firmware built = 06/22/09
Hardware Version = 1.1
International Mobile Subscriber Identity (IMSI) = 00000
International Mobile Equipment Identity (IMEI) = 356812011735469
Factory Serial Number (FSN) = D46208908261143
Modem Status = Online
Current Modem Temperature = 24 deg C, State = Normal

Profile Information
====================
Profile 1 = INACTIVE*
--------
PDP Type = IPv4
Access Point Name (APN) = internet.t-mobile
Authentication = PAP
Username: xxxxxxx, Password: xxxxxxx

* - Default profile

Data Connection Information
===========================
Data Transmitted = 0 bytes, Received = 0 bytes
Profile 1, Packet Session Status = INACTIVE
        Inactivity Reason = Normal inactivate state
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 = Circuit Switched
Packet Service = UMTS/WCDMA
Packet Session Status = Inactive
Current Roaming Status = Home
Network Selection Mode = Manual
Country = DEU, Network = TMO D
Mobile Country Code (MCC) = 262
Mobile Network Code (MNC) = 1
Location Area Code (LAC) = 6036
Routing Area Code (RAC) = 1
Cell ID = 4024
Primary Scrambling Code = 365
PLMN Selection = Manual
Registered PLMN = , Abbreviated =
Service Provider = T-Mobile D
Available PLMNs:
PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = Unknown

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = , Network = Unknown

PLMN Name = E-Plus (E-Plus)
MCC = 262, MNC = 3
Status = , Network = GSM

PLMN Name = o2 - de (o2 - de)
MCC = 262, MNC = 7
Status = Supports GPRS, Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = Supports GPRS, Network = GSM

PLMN Name = Vodafone.de (Voda de)
MCC = 262, MNC = 2
Status = , Network = Unknown

PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = Home,, Network = GSM

PLMN Name = T-Mobile D (TMO D)
MCC = 262, MNC = 1
Status = Home,, Network = Unknown

Radio Information
=================
Current Band = WCDMA 2100, Channel Number = 10836
Current RSSI(RSCP) = -85 dBm
Band Selected = Auto
Number of nearby cells = 1
Cell 1
Primary Scrambling Code = 0x16D
RSCP = -87 dBm, ECIO = -8 dBm

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

Your help is really appreciated.

Jopeti.

Frank Woodyard · ‎03-15-2011

Jopeti,

You need the APN, Hostname (Login) and, Password for the PPP session start from your carrier as stated in item 1) in the original post.

You can choose nearly anything for the "ppp chap hostname/password" command for the cellular interface. I personally find that it reduces questions if it matches up with the carrier hostname/password for those who follow behind you. You could use homer@simpsons.com/Doh! for example, and it would work. It only matters that something is there. The safe selection is in the example configuration.

Regarding the "Notes" section, I am not sure what is going on with the editor but, I edited that several times and it should have read as follows;

! Notes:

! The chat-script name "gsm" must be reflected in 3 places (the chat-script command);

! 1) The cellular 0 interface "dialer string" command

! 2) In the Line 3 configuration command "script dialer"

! 3) The variable "gsm" is just convenient but, can be any text string but,

! must match in all 3 places.

! The Cellular interface 0 utilizes the LINE 3 to communicate with the router. This is why configuration of LINE 3 is important.

If your security setting of the router is blocking the Profile hostname and password, you can stop that by changing the security level of the router temporarily. If the carrier says there is no/blank hostname and/or password for the Profile, you can utilize " " for the profile when it is time to enter the string variable of the hostname/password so, the command would look as follows;

router# cellular 0 gsm profile create 1 internet.t-mobile.com ipv4 chap " " " "

From the looks of the posted "show cell 0 all" command, it looks like the router is ready to dial out. If you are unable to ping 4.2.2.2 please post the following commands;

show ip interface brief

show int cell 0

show cell 0 all - If there was a change to the profile.

Cheers,

Frank

jopetik09 · ‎03-15-2011

Hi Frank,

I have configured the profile and the cellular0 interface is up and up. Thank you very much.
To check weather I am able to ping 4.2.2.2 or not how I can check the ping from source cellular0 because I have ADSL on Fa4 interface which is working now and this Cel0 is for backup.

Now how I can check weather I am reaching outside through Cellular0 or not?

Please see the below information and let me know if anything worng.

#show ip interface brief
Interface                  IP-Address      OK? Method Status                Protocol
Cellular0                  unassigned      YES manual up                    up
FastEthernet0              unassigned      YES unset up                    up
FastEthernet1              unassigned      YES unset down                  down
FastEthernet2              unassigned      YES unset up                    down
FastEthernet3              unassigned      YES unset up                    down
FastEthernet4              217.6.252.90    YES NVRAM up                    up
NVI0                       217.6.252.90    YES unset up                    up
SSLVPN-VIF0                unassigned      NO unset up                    up
Vlan1                      10.100.100.1    YES manual up                    up

#show int cell 0
Cellular0 is up (spoofing), line protocol is up (spoofing)
Hardware is 3G Modem-HSPA/UMTS/EDGE/GPRS-850/900/1800/1900/2100MHz / Global
Internet address will be negotiated using IPCP
MTU 1500 bytes, BW 384 Kbit/sec, DLY 100000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Closed, loopback not set
Keepalive not supported
Last input never, output never, output hang never
Last clearing of "show interface" counters 3w5d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations 0/0/16 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 288 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
     DCD=up DSR=up DTR=down RTS=up CTS=up