From: Edison Ortiz (edisonmortiz@gmail.com)
Date: Sun Jun 17 2007 - 11:31:31 ART
You must remove
ppp authentication pap callin
from R2.
__
Edison Ortiz
(Routing & Switching, CCIE # 17943)
----- Original Message -----
From: "Ovidiu Neghina" <o.neghina@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Sunday, June 17, 2007 9:51 AM
Subject: unidirectional ppp authentication on serial interface
> Hi dear all.
> I have R2----------R3 connected through a serial link. I want only R3 to
> authenticate R2.
>
>
> R3#sh run | i user
> username R2 password 0 CISCO
> R3#
>
> R3#sh run int ser 0/2/1
> Building configuration...
>
> Current configuration : 123 bytes
> !
> interface Serial0/2/1
> ip address 10.0.0.3 255.0.0.0
> encapsulation ppp
> clock rate 2000000
> ppp authentication pap
> end
>
> R2#sh run int ser 0/1/1
> Building configuration...
>
> Current configuration : 153 bytes
> !
> interface Serial0/1/1
> ip address 10.0.0.2 255.0.0.0
> encapsulation ppp
> ppp authentication pap callin
> ppp pap sent-username R2 password 0 CISCO
> end
>
>
>
> It does not work. At debug ppp negotiation it says
> R3#sh log | i PPP
> *Jun 17 13:44:54.955: Se0/2/1 PPP: Authorization required
> R3#
> I have read
> http://www.cisco.com/en/US/tech/tk713/tk507/technologies_tech_note09186a0080093c6f.shtml
> where unidirectional authentication is explained but over BRI
> interfaces...
> I think unidirectional ppp authentication is only for dial enviroment and
> will not work for this setup.
>
> Could you confirm this please ?
>
> best regards
> Ovi
>
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