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Can't get Cisco 881 wireless 3G to connect to Internet

Andy White
Explorer
Explorer

Hi,

I've been given a Cisco 881 with the 3G wireless module to see if I can get it to access the Internet, but just can't.  Below is my config, but I think I might have to get some TAC support on it to sort this out:

version 15.2

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

service internal

!

hostname 3GRouter

!

boot-start-marker

boot-end-marker

!

no aaa new-model

!

memory-size iomem 10

crypto pki token default removal timeout 0

!

ip dhcp pool pool1

import all

network 10.10.10.0 255.255.255.0

dns-server 8.8.8.8

default-router 10.10.10.1

!

!

ip domain name 12345

ip name-server 8.8.8.8

ip inspect WAAS flush-timeout 10

ip cef

no ipv6 cef

!

multilink bundle-name authenticated

chat-script INTERNET "" "ATDT*98*4#" TIMEOUT 30 CONNECT

license udi pid CISCO881G-K9 sn FCZ1628946L

!

controller Cellular 0

!

ip ssh version 2

!

interface FastEthernet0

no ip address

!

interface FastEthernet1

no ip address

!

interface FastEthernet2

no ip address

!

interface FastEthernet3

no ip address

!

interface FastEthernet4

no ip address

shutdown

duplex auto

speed auto

!

interface Cellular0

no ip address

ip virtual-reassembly in

encapsulation ppp

load-interval 60

dialer in-band

dialer pool-member 1

async mode interactive

ppp chap hostname web

ppp chap password 0 web

!

interface Vlan1

ip address 10.10.10.1 255.255.255.0

!

interface Dialer1

ip address negotiated

ip virtual-reassembly in

encapsulation ppp

dialer pool 1

dialer idle-timeout 0

dialer string INTERNET

dialer persistent

dialer-group 1

no cdp enable

!

ip forward-protocol nd

no ip http server

no ip http secure-server

!

ip route 0.0.0.0 0.0.0.0 Dialer1

!

dialer-list 1 protocol ip permit

!

control-plane

!

line con 0

line aux 0

line 3

exec-timeout 0 0

script dialer INTERNET

modem InOut

no exec

transport input all

rxspeed 7200000

txspeed 5760000

line vty 0 4

login

transport input all

!

end

3GRouter#sh cellular 0 profile 1

Profile 1 = INACTIVE*

--------

PDP Type = IPv4

Access Point Name (APN) = mobile.o2.co.uk

Authentication = CHAP

Username: web, Password: web

thanks in advance

1 ACCEPTED SOLUTION

Accepted Solutions

mavespig
Participant
Participant

Hi Andy,

your script is referencing profile #4, but you configured profile #1.

Can you change the script from:

chat-script INTERNET "" "ATDT*98*4#" TIMEOUT 30 CONNECT

to:

chat-script INTERNET "" "ATDT*98*1#" TIMEOUT 30 "CONNECT"

If it doesn't help, can you post the full 'show cell 0 all', plus collect the debugs for:

-deb dialer

-deb chat

-deb ppp nego

Thanks

Marco

View solution in original post

14 REPLIES 14

mavespig
Participant
Participant

Hi Andy,

your script is referencing profile #4, but you configured profile #1.

Can you change the script from:

chat-script INTERNET "" "ATDT*98*4#" TIMEOUT 30 CONNECT

to:

chat-script INTERNET "" "ATDT*98*1#" TIMEOUT 30 "CONNECT"

If it doesn't help, can you post the full 'show cell 0 all', plus collect the debugs for:

-deb dialer

-deb chat

-deb ppp nego

Thanks

Marco

Hi,

Think that worked!

3GRouter#ping www.google.com

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 74.125.230.210, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 472/640/1060 ms

3GRouter#

Can you recommend and useful show commands aimed towards the cellualar internface?  such as signal quality, speed etc?

The next task will be to test EasyVPN.

Thanks

Glad to hear that

'Show cellular 0 all' should have all the information you need. For the signal, you can check the 'Radio' part (or just type "show cellular 0 radio')

You can also use show cellular 0 radio history, to monitor the signal quality on the last several hours.

For the VPN part, I suggest you to open a separate thread under /security/vpn, you will get more chances of a reply.

Cheers

Marco