show current PPP authentication protocol chap / pap

Unanswered Question
Jul 5th, 2010


does anyone know a easy way to show the currrent PPP authentication protocol that is used ?

I just found on how to get it from the debug output.

But if there is an existing connection, how can I make the router show the protocol that is currently used or that was sucessfull used to authenticate.

Thank you all for the input.



I have this problem too.
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cisco.xenpak1 Tue, 07/06/2010 - 04:10

Hi Marcel,

so it looks like, there is no seperate command to see this.

Because I have sometimes to configure it for chap and pap and then if chap is working ok, I would like to turn the support for pap off.

Sometimes it is not possible to get the info from the debug, when there is an existing connection.

Otherwise I would have to interrupt the connection.

Thx for your answer.


cisco.xenpak1 Tue, 07/06/2010 - 04:13

Hi Smitesh,

thank you for your answer.

In my case, I have chap and pap configured at the same time. Then after the connection is established, I am able to check the router.

In my config I have configured both methods.


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