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??
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:
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?
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.
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.
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