RE: PPP Authentication

From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Feb 18 2006 - 15:46:56 GMT-3


Teymur,
        Neither of your routers are configured to be a "client" in the
PAP authentication process. They are configured only to be "servers" in
the PAP authentication process. In order for your routers to both be
clients, you will need the "ppp pap sent-username <username> password
<password>" command under the routers interfaces.

Also if you "debug ppp negotiation" you will see that they both reject
PAP as an authentication protocol and offer CHAP.

HTH,

Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
 
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
 
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Agayev, Teymur
Sent: Saturday, February 18, 2006 6:09 AM
To: ccielab@groupstudy.com
Subject: PPP Authentication

Hi All,

Can anybody help me with ppp authentication? Below part of config that
doesnt work and I cant understand why:

version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname Rack1R1
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
ip subnet-zero
ip cef
no ip domain lookup
username Rack1R5 password 0 123456

interface Serial0/1
 ip address 5.0.0.2 255.255.255.252
 encapsulation ppp
 ppp authentication pap

no service password-encryption
hostname Rack1R5
no aaa new-model
ip subnet-zero
ip cef
no ip domain lookup
username Rack1R1 password 0 123456

interface Serial0/1
 ip address 5.0.0.1 255.255.255.252
 encapsulation ppp
 clock rate 64000
 ppp authentication pap

And logs full of:
Rack1R1# *Apr 24 00:04:55.223: Se0/1 PPP: Authorization required
Rack1R1# *Apr 24 00:05:45.399: Se0/1 PPP: Authorization required
Rack1R1# *Apr 24 00:06:35.575: Se0/1 PPP: Authorization required
Rack1R1# *Apr 24 00:07:25.751: Se0/1 PPP: Authorization required



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