877 can't access the internet - config attached

Answered Question
Oct 2nd, 2007

Hi, this is strange. I have an 877 ADSL router that I can't configure it to get on the internet. I have managed to get an 837 and an 1841 ADSL router on, but not this one. I spoke with a Cisco engineer who we bought it from and he tested it and it was fine on their ADSL line. I got it back and just put our username and password in and again nothing. I have the config attached and the debug output when I put the ADSL phone line in.





Attachment: 
Correct Answer by Paolo Bevilacqua about 9 years 4 months ago

Thanks. All posts have a scrollbox for rating, if you don't have that, it's more serious matter than the ADSL disconnects :)

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lgijssel Tue, 10/02/2007 - 03:30

You have a link on the ATM line so we may assume that the line itself is OK.

In the ppp negotiation phase, there is only outgoing traffic. This makes me think of an incorrect VPI/VCI setting on the atm interface.

Have you verified that 0/38 is indeed correct for your service provider?


regards,

Leo

whiteford Tue, 10/02/2007 - 03:34

Hi Leo, the weird thing I'm using the same config I put on the 837 apart from "interface Vlan1" the 837 uses "interface Ethernet0"


The 837 works with 0/38 and so does the 1841, I just don't understand.

lgijssel Tue, 10/02/2007 - 05:46

Yes it did. I also spotted a difference and you are missing something:

The line "ppp authentication chap pap callin" & pap authentication was not in the first config.


For the rest, you should add the following: "dialer-list 1 protocol ip permit"


regards,

Leo

whiteford Tue, 10/02/2007 - 05:48

Yeah I added the ppp authentication chap pap callin part.


I'll add the dialer-list 1 protocol ip permit part and test

whiteford Wed, 10/03/2007 - 02:28

omg! you fixed it, how do I rate it, I don't see an option.

Correct Answer
Paolo Bevilacqua Wed, 10/03/2007 - 11:03

Thanks. All posts have a scrollbox for rating, if you don't have that, it's more serious matter than the ADSL disconnects :)

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