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PADI Timer Expired... how to debug

Hello,

My router is configured to open a PPPoE session with a modem in RFC2684.

I have two ADSL lines, each on the same ISP.

If I try to open the session with the first line, no problem.

If I try to open the session with the second : Padi Timer Expired !

In each case, my modem is synchronize to the DSLAM.

How I can debug the padi timer expired to understand with I not the pado from the ISP ?

My ISP think is a collect problem (the first is probably collected in IP the second in ATM). In this case what is the solution to doing that (I have no ATM interface on my router..).

Jerome

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Re: PADI Timer Expired... how to debug

Hello Jerome,

follow the procedure described here:

http://www.cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a008071a7c2.shtml

>> In each case, my modem is synchronize to the DSLAM

this means both lines are up/p at DSL level, but the two lines can have different encapsulations for example and you need two modems one for line1 and one for line2.

see also

http://www.faqs.org/rfcs/rfc2684.html

>> My ISP think is a collect problem (the first is probably collected in IP the second in ATM). In this case what is the solution to doing that (I have no ATM interface on my router..).

this leads to possible encapsulation problems

in short if  in the following debug command output

debug ppp negotiation

debug ppp authentication

if you never see a line that contains a capitol i I it means the router is sending messages but no one answers

Hope to help

Giuseppe

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