We bought new cisco 881G-K9 router:
NAME: "881G", DESCR: "881G chassis, Hw Serial#: xxx, Hw Revision: 1.0"
PID: CISCO881G-K9 , VID: V01 , SN: xxx
NAME: "Modem 0 on Cellular0", DESCR: "Sierra Wireless 504-G"
PID: 504-G , VID: 1.0, SN: xxx
Can you try to configure a dummy CHAP username/password (for example guest/guest) under profile and cellular?
I would also move all the configuration from dialer to cellular interface. The cellular interface is already a dialer per-se, you can move all the commands there, it simplify the troubleshooting.
Can you try the following config:
ip address n egotiated encapsulation ppp dialer in-band dialer string gsm dialer-group 1 async mode interactive ppp chap hostname guest ppp chap password 0 guest ppp ipcp dns request ip route 0.0.0.0 0.0.0.0 Cellular0/0/0 access-list 1 permit any dialer-list 1 protocol ip list 1 line 3 exec-timeout 0 0 script dialer gsm login modem InOut no exec
After that, can you collect the same debugs again?
Hope this helps
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You are right about configuration. But it is not solved problem. And I got same debug strings.
Although, I found problem. Problem was in below part:
*Jan 27 06:04:32.511: Ce0 PPP DISC: User failed CHAP authentication
My friend Michel (big thanks to him) said that :
"What seems to be happening is that your local router is asking the network to authenticate itself.
You need to configure the router to trust the network and not ask for CHAP authentication "
and adviced to add below commands:
ppp chap refuse
So, at the end correct config is below:
ip address negotiated
ip nat outside
ip virtual-reassembly in
dialer idle-timeout 0
dialer string gsm
async mode interactive
ppp chap refuse
ppp ipcp dns request
dialer-list 1 protocol ip permit
script dialer gsm
transport input all
Thanks to all for support...
I had the same issue with one of our 881G-G-box and issuing the below command the cellular came up...
"ppp chap refuse"
Thanks a lot..
I'm having problems configuring an 881G router as well. Did you configure on your Cellular interface or did you use a dialer interface?
If you don't mind, could you provide your interface config?