MA5200G Fails to Telnet in Local Authentication Because the Local Account is not

Created: Apr 6, 2016 05:44:27Latest reply: Apr 6, 2016 13:57:40 1376 1 0 0
Version: VRP3.30-2215 and the later ones. 
Symptoms: MA5200G fails to log into the equipment through the telnet account for local authentication, prompting failure of login continuously. 
Login authentication
% Login failed!
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Ravger  Visitor   Created Apr 6, 2016 13:57:40 Helpful(0) Helpful(0)

Handling Process
1.Check the configuration of user interface, and no problem is found: 
 user-interface vty 0 4                       
 acl 2000 inbound                                                                 
 authentication-mode aaa                                                          
 user privilege level 3            
2. The default_admin of system uses local authentication; according to checkup for configuration of local account, no error is found: 
 user 123@default_admin password simple vlan authentication-type T                            
 user telnet password simple vlan authentication-type T   
3. Check the state of local account: 
[MA5200G]display user name telnet                                               
The contents of local user telnet:                                               
 Password          : vlan                                                         
 State             : Active                                                      
 Auth-Type-Mask    : T                                                            
 Admin-level       : -                                                           
 Idle-Cut          : No                                                           
 FTP-directory     : -                                                            
 Callback-check    : Yes                                                          
 Callback-number   : -                                                            
 CAR-Level         : -          
It is found that admin-level herein is empty(-),  but when the local user attempts to log in through telnet account, the user must be configured with level (the versions before set the level to 0 by default). 
4. The account could log in after changing the level of the local account to 3. For VRP3.30-2215, the local account is defaulted to no user level, which differs to the former versions, so it needs to set privately for access to equipment. 
Root Cause
The local account has no login level, so in the versions after VRP3.30-2215, the local account without configuration of level will fail in authentication, and cannot log into the equipment. 
If the local account serves as telnet account for login, it must be configured with admin-level; if Auth-type-mask is configured, it must have a T, so the user could log in through telnet. 
If the local account serves as FTP account for access, it must be configured with FTP-directory. If Auth-type-mask is configured, it must have an F, so the user could log in through FTP. 

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