The router you are dialing in, i.e. the router that is
supposed to authenticate should use the command ppp
authentication pap and username and passwords. However
the router that is dialing to should only use ppp pap
sent-username command only. i.e. without ppp
authentication pap command. That will work, i bet.

Regards,
Khalil
CCNP, MCSE

--- Andrew Larkins <[EMAIL PROTECTED]>
wrote:
> are you using the ppp pap sent username command??
> Otherwise it sounds as
> though the usernames and passwords may be wrong..
> What is the output of the
> debug ppp auth??
> 
> -----Original Message-----
> From: Niraj Palikhey [mailto:[EMAIL PROTECTED]]
> Sent: 26 March 2001 14:26
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Line prot. down with ppp auth pap command?
> 
> 
> <html><DIV>Hi,</DIV>
> <DIV>I have setup 2 routers with a back-to-back
> cable. When I setup the
> serial int. with ppp encap. I can ping the other
> router and vice-versa. But
> when I setup the username and password and add the
> command #ppp auth pap,
> the line prot. goes down. I setup&nbsp;#debug ppp
> nego and one of the debug
> output reads,&nbsp;"Closing connection as remote
> router cannot
> authenticate". I&nbsp;made sure that the hostnames
> were setup correctly and
> the passwords were the same(cisco).&nbsp;What could
> be the possible reason
> why the serial int.&nbsp;shows line
> prot&nbsp;down(sh ip int brie). Please
> advise. </DIV>
> <DIV>Sincerely,</DIV>
> <DIV>[EMAIL PROTECTED]</DIV><br
> clear=all><hr>Get your FREE
> download of MSN Explorer at <a
>
href="http://explorer.msn.com">http://explorer.msn.com</a><br></p></html>
> 
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