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Network Parameters
Data Volume Information Transmission (bytes sent/received)
The AP’s RADIUS client implementation allows a hotspot operator to accurately track the exact number of bytes sent
and received by a subscriber based on:
•User Name
• IP address (Framed IP)
• MAC address of the user (Calling Station ID)
As shown in the Sample RADIUS Transmissions, the byte counts are sent in the Accounting “Alive” and Accounting
“Stop” messages. As mentioned previously, Accounting “Stop” messages can be generated by:
• An explicit customer logout (via ICC or by typing http://1.1.1.1/)
• Session time-out
• Idle time-out
• Deleting the user from the AP’s Current Subscribers Table.
The message will indicate the type of action that initiated the Accounting “Stop”. To ensure accuracy, the AP
temporarily saves the Accounting information per user in case of a device reboot.
RADIUS Messages and RADIUS Attributes
The AP-2500’s RADIUS functionality can be broken down into the following categories:
• Access-Request
• Access-Accept Parsing
• Acct-Request
Access-Request Attributes
– Username
• Included if enabled.
– Password
– Service-Type
– NAS-Port (communication port number)
– NAS-Identifier
• Included if enabled on AP; see RADIUS Configuration Parameters > Miscellaneous Options.
– Framed-IP
• The subscriber’s IP address.
• Included if enabled on AP; see RADIUS Configuration Parameters > Miscellaneous Options.
– Called-Station-Id
• The AP’s MAC address.
– Calling-Station-Id
• The subscriber’s MAC address.
– NAS-IP
• The AP’s IP address
– NAS-Port-Type
• Included if enabled on AP; see RADIUS Configuration Parameters > Miscellaneous Options.
– Acct-Session-ID
• The Acct-Session-ID is created when the RADIUS authentication request is built. It is transmitted in both
the Access-Request and the Accounting-Request.
–State
• Used for challenge/response authentication; since the AP uses the Password Authentication Protocol
(PAP) for authentication purposes, this attribute is not currently in use.