D-Link DFL-260E User Manual for DFL-260E - Page 67
Interim Accounting Messages, 2.3.4. Activating RADIUS Accounting
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2.3.3. Interim Accounting Messages Chapter 2. Management and Maintenance • Timestamp - The number of seconds since 1970-01-01. Used to set a timestamp when this packet was sent from the NetDefend Firewall. In addition, two more attributes may be sent: • Input Gigawords - Indicates how many times the Input Bytes counter has wrapped. This is only sent if Input Bytes has wrapped, and if the Input Bytes attribute is sent. • Output Gigawords - Indicates how many times the Output Bytes counter has wrapped. This is only sent if Output Bytes has wrapped, and if the Output Bytes attribute is sent. Tip: The meaning of the asterisk after a list entry The asterisk (*) symbol after an entry in the list above indicates that the sending of the parameter is optional and is configurable. 2.3.3. Interim Accounting Messages In addition to START and STOP messages NetDefendOS can optionally periodically send Interim Accounting Messages to update the accounting server with the current status of an authenticated user. Messages are Snapshots An interim accounting message can be seen as a snapshot of the network resources that an authenticated user has used up until a given point. With this feature, the RADIUS server can track how many bytes and packets an authenticated user has sent and received up until the point when the last message was sent. An Interim Accounting Message contains the current values of the statistics for an authenticated user. It contains more or less the same parameters as found in an accounting request STOP message, except that the Acct-Terminate-Cause is not included (as the user has not disconnected yet). Message Frequency The frequency of interim accounting messages can be specified either on the authentication server or in NetDefendOS. Switching on the setting in NetDefendOS will override the setting on the accounting server. 2.3.4. Activating RADIUS Accounting In order to activate RADIUS accounting a number of steps must be followed: • The RADIUS accounting server must be configured. • A user authentication object must have a rule associated with it where a RADIUS server is specified. • Ther RADIUS server itself must be correctly configured Important: The RADIUS Vendor ID must be 5089 When configuring the RADIUS server itself to communicate with NetDefendOS, it is necessary to enter a value for the Vendor ID (vid). This value should be specified as 5089. 67