[cisco-nas] ppp callback problems with Cisco1720

[Ahmad Cheikh Moussa]

Hi!

I have a Cisco 1720 with IOS 12.2(15)T11 (c1700-o3y-mz.122-15.T11)
as a callback server and a Windows client (Win2k/XP).
I want to configure ppp callback over ISDN.
The problem is, the negotiation of callback fails, and I do
not know, why ?

Any Ideas ??
Is this a Bug ??

Here is the config of the callback server :

version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
service compress-config
!
hostname cisco1720
!
logging queue-limit 100
no logging buffered
no logging console
!
username test callback-dialstring XXXXXXXXX password *********
memory-size iomem 25
ip subnet-zero
!
!
interface BRI0
  no ip address
  encapsulation ppp
  dialer pool-member 1
  isdn switch-type basic-net3
  isdn answer1 2673
  no cdp enable
!
interface Dialer9
  ip unnumbered Ethernet0
  encapsulation ppp
  no ip split-horizon
  dialer pool 1
  dialer remote-name test
  dialer caller *******
  dialer-group 1
  peer default ip address 192.168.17.17
  no cdp enable
  ppp callback accept
  ppp authentication chap
!
ip classless
!
!
map-class dialer dialin
  dialer callback-server username dial-string

Here a debug output:

03:56:58: BR0:2 PPP: Using dialer call direction
03:56:58: BR0:2 PPP: Treating connection as a callin
03:56:58: BR0:2 PPP: Phase is ESTABLISHING, Passive Open
03:56:58: BR0:2 LCP: State is Listen
03:56:59: BR0:2 LCP: I CONFREQ [Listen] id 1 len 44
03:56:59: BR0:2 LCP:    MagicNumber 0x09DC2D0E (0x050609DC2D0E)
03:56:59: BR0:2 LCP:    PFC (0x0702)
03:56:59: BR0:2 LCP:    ACFC (0x0802)
03:56:59: BR0:2 LCP:    Callback 6  (0x0D0306)
03:56:59: BR0:2 LCP:    MRRU 1614 (0x1104064E)
03:56:59: BR0:2 LCP:    EndpointDisc 1 Local
03:56:59: BR0:2 LCP:     (0x131701B899786D1CEB4103BFDBACBA96)
03:56:59: BR0:2 LCP:     (0xD8DF1500000000)
03:56:59: BR0:2 LCP: O CONFREQ [Listen] id 8 len 15
03:56:59: BR0:2 LCP:    AuthProto CHAP (0x0305C22305)
03:56:59: BR0:2 LCP:    MagicNumber 0x05B604B1 (0x050605B604B1)
03:56:59: BR0:2 LCP: O CONFREJ [Listen] id 1 len 8
03:56:59: BR0:2 LCP:    MRRU 1614 (0x1104064E)
03:56:59: BR0:2 LCP: I CONFACK [REQsent] id 8 len 15
03:56:59: BR0:2 LCP:    AuthProto CHAP (0x0305C22305)
03:56:59: BR0:2 LCP:    MagicNumber 0x05B604B1 (0x050605B604B1)
03:56:59: BR0:2 LCP: I CONFREQ [ACKrcvd] id 2 len 40
03:56:59: BR0:2 LCP:    MagicNumber 0x09DC2D0E (0x050609DC2D0E)
03:56:59: BR0:2 LCP:    PFC (0x0702)
03:56:59: BR0:2 LCP:    ACFC (0x0802)
03:56:59: BR0:2 LCP:    Callback 6  (0x0D0306)
03:56:59: BR0:2 LCP:    EndpointDisc 1 Local
03:56:59: BR0:2 LCP:     (0x131701B899786D1CEB4103BFDBACBA96)
03:56:59: BR0:2 LCP:     (0xD8DF1500000000)
03:56:59: BR0:2 LCP: O CONFACK [ACKrcvd] id 2 len 40
03:56:59: BR0:2 LCP:    MagicNumber 0x09DC2D0E (0x050609DC2D0E)
03:56:59: BR0:2 LCP:    PFC (0x0702)
03:56:59: BR0:2 LCP:    ACFC (0x0802)
03:56:59: BR0:2 LCP:    Callback 6  (0x0D0306)
03:56:59: BR0:2 LCP:    EndpointDisc 1 Local
03:56:59: BR0:2 LCP:     (0x131701B899786D1CEB4103BFDBACBA96)
03:56:59: BR0:2 LCP:     (0xD8DF1500000000)
03:56:59: BR0:2 LCP: State is Open
03:56:59: BR0:2 PPP: Phase is AUTHENTICATING, by this end
03:56:59: BR0:2 CHAP: O CHALLENGE id 7 len 30 from "cisco1720"
03:56:59: BR0:2 LCP: I IDENTIFY [Open] id 2 len 18 magic 0x09DC2D0E 
MSRASV5.00
03:56:59: BR0:2 LCP: I IDENTIFY [Open] id 3 len 29 magic 0x09DC2D0E 
MSRAS-1-ISPVERTRNOTEB
03:56:59: BR0:2 CHAP: I RESPONSE id 7 len 27 from "test"
03:56:59: BR0:2 PPP: Phase is FORWARDING, Attempting Forward
03:56:59: BR0:2 PPP: Phase is AUTHENTICATING, Unauthenticated User
03:56:59: BR0:2 PPP: Phase is FORWARDING, Attempting Forward
03:56:59: BR0:2 PPP: Phase is AUTHENTICATING, Authenticated User
03:56:59: BR0:2 CHAP: O SUCCESS id 7 len 4
03:56:59: BR0:2 MCB: Initialize
03:56:59: BR0:2 MCB: Flush
03:56:59: BR0:2 MCB: Start
03:56:59: BR0:2 MCB: Callback not authorized for this user test
03:56:59: BR0:2 MCB: Newstate 0-INIT -> 2-WAIT_RESPONSE
03:56:59: BR0:2 PPP: O MCB Request(1) id 7 len 6
03:56:59: BR0:2 MCB: O  1 7 0 6 1 2
03:56:59: BR0:2 MCB: O Request Id 7 Callback Type None
03:56:59: BR0:2 PPP: Phase is CBCP
03:56:59: BR0:2 PPP: I MCB Response(2) id 7 len 6
03:56:59: BR0:2 MCB: I  2 7 0 6 1 2
03:56:59: BR0:2 MCB: Received response
03:56:59: BR0:2 MCB: Response CBK-None 1 2
03:56:59: BR0:2 PPP: O MCB Ack(3) id 7 len 6
03:56:59: BR0:2 MCB: O  3 7 0 6 1 2
03:56:59: BR0:2 MCB: O Ack Id 7 Callback Type None
03:56:59: BR0:2 MCB: No Callback negotiated; Exit
03:56:59: BR0:2 MCB: Flush

Regards,
  Ahmad


-- 
Ahmad Cheikh-Moussa
NetUSE AG
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