Invalid password results in failure of l2tp dial-up

Publication Date:  2012-07-27 Views:  68 Downloads:  0
Issue Description
  Some customer feedbacks that he could not dial up when AR2830 serves for l2tp dial-up.

The interface link of virtual template frequents up and down. Tunnel has been established, and so does session, but dial-up fails yet. The version is VRP3.3 0008.



<czj-vpdn>dis ver                                                               



 Copyright Notice:                                                             



 All rights reserved (Aug 17 2004).                                            



 Without the owner's prior written consent, no decompiling                     



 nor reverse-engineering shall be allowed.                                     



 Huawei-3Com Versatile Routing Platform Software                               



 VRP(R) software, Version 3.30, Release 0008

 

Alarm Information

 Invalid password results in failure of dial-up                                                            



%Jul 30 23:35:33 2005 czj-vpdn IFNET/5/UPDOWN:PPP IPCP protocol on the interface



 Virtual-Template1:0 is UP                                                      



%Jul 30 23:36:02 2005 czj-vpdn IFNET/5/UPDOWN:Line protocol on the interface Vir

tual-Template1:0 is DOWN

Handling Process

1. Check if tunle has been established:



<czj-vpdn>dis l2tp tu                                                          



 LocalTID RemoteTID RemoteAddress    Port   Sessions RemoteName                



 1        3         61.139.205.19    1701   1        wzcz2                                                                                Total tunnel = 1                                                              



2. Check if session has been established



<czj-vpdn>dis l2tp se                                                          



 LocalSID  RemoteSID  LocalTID                                                 



  6315      3903 1                                                                                    Total session = 1                                                             



3. Debug ppp packet information; the user name and password do not match, causing the links up and down frequently



*0.18745694 czj-vpdn PPP/8/debug2:                                              



  PPP Packet:                                                                  



      Virtual-Template1:0 Input  PAP(c023) Pkt, Len 42                         



      State ServerListen, code Request(01), id 8f, len 23                      



      Host Len: 13  Name:wzcz2@wzcz.gx                                         



      Pwd Len:  4  Pwd:wzcz                                                                 



*0.18745696 czj-vpdn PPP/8/debug2:                                             



  PPP Error:                                                                   



      Virtual-Template1:0 PAP : Server failed No.  1 !



Configure the password of the configuration file to:



 local-user wzcz2@wzcz.gx password simple wzcz@wzcz.gx                                  



 local-user wzcz2@wzcz.gx service-type ppp             


                                                                  

5. Change the password, and then dial up successfully.

Root Cause
Invalid password

END