06-06-2012 02:09 AM - edited 03-04-2019 04:34 PM
I have a Cisco 881G with PCEX-HSPA-3G card for which I have successfully configured for internet.
As the above one has come to end of life, we got the replacement 881G with embedded 3G modem.
I can't get Cellular 0 to use ppp encapsulation:
Cellular0: Only SLIP encapsulation supported
This is on a Cisco 881G, the IOS is below
Router#sh ver | in bin
System image file is "flash:c880data-universalk9-mz.151-4.M4.bin"
Could you please help me if you found any solution??
06-06-2012 03:10 AM
not see that the issue of a new version
try another ios
06-06-2012 04:19 AM
For Cisco 880 series, we need to use IOS 12.4(22)YB1 or above to fully utilize HSPA support.
if you need more info then please check this page:
06-06-2012 05:21 AM
Thanks a lot for the reply.
I currently have the C881G+7-K9 with embedded modem where we do not need any express card and just need to insert the SIM card in a slot available behing the router.
So this IOS holds good for this as well?
06-06-2012 06:01 AM
I think this IOS should work.
Please try with this IOS first , if not works then upgrade with new one.
If you have some confusion then please visit this page:
Everyting is step by step:
Please mark answered this question,if you are satisfied with this info.
06-07-2012 07:57 PM
I have seen the link and they are for the old type of 881G routers.
The one I have are with embedded modem.
06-07-2012 11:02 PM
Please check this, may be it helps.
1. configure terminal
2. interface cellular unit
3. encapsulation ppp
4. ppp chap password 0
5. asynchronous mode interactive
6. ip address negotiated
Dont forget to mark answered this question, if you are satisfied.
06-08-2012 02:45 AM
Nope, when I enter the "encapsulation ppp" under cellular interface, I get the error message shown in my 1st post.
Can someone help in getting the updated IOS for c880data-universalk9-mz.151-4.M4.bin
06-12-2012 04:56 AM
try to download newest or early ios.
when working with 15th ios the errors are common
06-14-2012 02:22 AM
Tried that but there is no data for the current IOS I am using.
When try to put the IOS in the Cisco Navigator, it gives an error telling there is no version.
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