Security
RADIUS
Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x 296
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- Unknown NAS—An unknown NAS event occurred.
- Time Change—Clock on device was changed by the administrator. 
- Reset—Device was reset by the administrator.
• IP Address—IP address of the unknown NAS.
• Time—Timestamp of event
RADIUS Server Statistics
To display RADIUS server statistics:
STEP 1 Click Security > RADIUS Server > RADIUS Server Statistics.
The following fields are displayed:
• Statistics Source—
- Global—Statistics for all users
- Specific NAS—Statistics for specific NAS.
• Refresh Rate—Select the Refresh Rate, which is the time period that passes before the 
statistics are refreshed.
• Incoming Packets on Authentication Port—How many packets  received on the 
authentication port.
• Incoming Access-Requests from Unknown Addresses—Number of incoming access 
requests from unknown NAS addresses.
• Duplicate Incoming Access-Requests—Number of retransmitted packets received.
• Sent Access-Accepts—Number of access accepts sent.
• Sent Access-Rejects—Number of access rejects sent.
• Sent Access-Challenges—Number of access challenges sent.
• Incoming Malformed Access-Requests—Number of malformed access requests 
received.
• Incoming Authentication-Requests with Bad Authenticator—Number of incoming 
packets with bad passwords.
• Incoming Authentication Packets with Other Mistakes—Number of received 
incoming authentication packets with other mistakes.