NEC IP8800/S6300 User Manual

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3.   
Troubleshooting Functional Failures in Operation
97
3.12.3
Communication Failure on Using MAC Authentication
For MAC authentication failure, isolate the problem according to the failure analysis method described in "
For confirming Web authentication configuration and accounting information, isolate the problem according to the 
failure analysis method described in "
" and  "
Table 3-53: Failure Analysis Method for MAC Authentication
No.
Troubleshooting Steps and Command
Action
1
Check to see if the terminal can communicate.
• If authentication in Local authentication method failed, go to No. 2.
• If authentication in RADIUS authentication method failed, go to 
No.3.
• Otherwise, go to No.5.
2
Check to see if MAC address and VLAN ID are 
registered by the show mac-authentication 
mac-address command.
• If MAC address is not registered yet, set MAC address and VLAN 
ID by the set mac-authentication mac-address 
command.
• Otherwise, go to No. 5.
3
Check to see the status of communication with 
RADIUS server by the show 
mac-authentication statistics 
command.
• When "TxTotal" of [Account frames] indicates 0, confirm all of the 
settings by configuration commands (aaa accounting 
web-authentication default start-stop group 
radius, radius-server host, and 
mac-authentication radius-server host) are correct.
• For IP8800/S3600 and IP8800/S2400 models, even though the dead 
interval lets RADIUS server get recovered from no-response state 
and become able to communicate, the system is not able to collate 
with the RADIUS server during a period of time specified by 
configuration command authentication radius-server 
dead-interval. As a result, an authentication error occurs.
In this case, if the period of time is too long for the system to wait for 
an authentication error response, change the set value of 
configuration command authentication radius-server 
dead-interval or execute the clear 
web-authentication dead-interval-timer command. 
Authentication action against the first RADIUS will be taken again.
• Otherwise, go to No. 4.
4
Check to see if MAC address and password are 
registered in RADIUS server.
• If MAC address has not been registered as a User ID for RADIUS 
Server yet, register it.
• If you use MAC address as a password, set the same value as in MAC 
address.
• Once you registered common values to the RADIUS servers as a 
password, check to see if the password is the same as one registered 
by the configuration command mac-authentication 
password.
• Otherwise, go to No.5.