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[Troubleshooting Series] Case 32 Network problem when Radius athentication fail

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Physical Network Topology



Fault Description

The customer can't log in AR router.

Configuration Files

l   AR

radius-server template shiva
 radius-server shared-key cipher %^%#z3#CA>MtbD=>A]Ts;au$;&I!<sN~"B!++2S8'--;%^%#
 radius-server authentication 1812 weight 80
 radius-server authentication 1812 weight 40
 radius-server accounting 1813 weight 80
 radius-server accounting 1813 weight 40
 radius-server retransmit 2
 undo radius-server user-name domain-included
pki realm default
 enrollment self-signed
ssl policy default_policy type server
 pki-realm default
 authentication-scheme auth
 accounting-scheme abc
  accounting-mode radius
  accounting start-fail online 
 domain huawei
  accounting-scheme abc
  radius-server shiva
 local-user user1 password irreversible-cipher %^%#iv-e(@1]P90{2*&tcll)JN*KQ9c`"Ob^#"Al|p7EHK>qVzB%(7On,d&6iweF%^%#
 local-user user1 privilege level 15                                                       
 local-user user1 service-type http
interface GigabitEthernet0/0/0
 ip address

Troubleshooting Procedure

                               Step 1      Take the  ping test to check whether AR can access to the Radius server.


AR can't access to radius server, check the route.

                               Step 2      After adding the default route, AR can access to radius server. Check whether the aaa parameters on AR are correct.

The radius template parameters, the aaa scheme parameters ect.

                               Step 3      After change the authenticate-scheme parameters and domain parameters on AR, users can log on AR and authenticated by radius server successfully.


Root Cause

AR can't access to the radius server for the route cannot reached.

And  the AAA parameters are not matched.

  • x
  • convention:


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