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Cellular 0 in router 881G isn't up

Hi all:

I'm trying to have internet access in a 881G router through sim I introduced. The operator is Vodafone and I know 3G is working fine cause HSPA works out well if you introduce sim in a mobile, activate 3G and try surf.

I just called Vodafone and they confirmed the APN, user, pass and authentication are correct so I understand there is a configuration issue in the router. The config I've got nowadays is very simple:


Router#sh run
[output supressed]
multilink bundle-name authenticated
chat-script gsm "" "AT!CALL1" TIMEOUT 20 "OK"
license udi pid C881G+7-K9 sn FCZ184190MC
controller Cellular 0
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
 duplex auto
 speed auto
interface Cellular0
 ip address negotiated
 ip nat outside
 ip virtual-reassembly in
 encapsulation slip
 load-interval 30
 dialer in-band
 dialer idle-timeout 0
 dialer string gsm
 dialer-group 1
 no peer default ip address
 async mode interactive
interface Vlan1
 ip address
 ip nat inside
 ip virtual-reassembly in
ip forward-protocol nd
no ip http server
no ip http secure-server
ip nat inside source list 1 interface Cellular0 overload
ip route Cellular0
access-list 1 permit any
dialer-list 1 protocol ip permit
line con 0
 no modem enable
line aux 0
line 3
 script dialer gsm
 modem InOut
 no exec
 transport input all
 transport output all
line vty 0 4
 transport input all



I realized if I launch show interface cellular 0 commando I can see the next:


Router#sh int cell 0
Cellular0 is up (spoofing), line protocol is up (spoofing)
  Hardware is 3G Modem-QuadBand HSPA+R7/HSPA/UMTS QuadBand EDGE/GPRS Global and GPS
  Internet address will be assigned dynamically by the network
  MTU 1500 bytes, BW 9 Kbit/sec, DLY 100000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation SLIP, loopback not set


Thanks and regards


2 Replies 2



Were you able to resolve this? I've having the same issue

Hi martino

Yes, I managed to fix it. The problem is I no longer work in the company where I configured the routers so I couldn't see the configuration.

As far as I remember, the problem was in the chat-script used. Sorry for not being more helpful.


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