When enabled, RADIUS accounting sends command line accounting from the 7705 SAR router to the RADIUS server. The router sends accounting records using UDP packets at port 1813 (decimal).
The router issues an accounting request packet for each event requiring the activity to be recorded by the RADIUS server. The RADIUS server acknowledges each accounting request by sending an accounting response after it has processed the accounting request. If no response is received in the time defined in the timeout parameter, the accounting request must be retransmitted until the configured retry count is exhausted. A trap is issued to alert the NMS (or trap receiver) that the server is unresponsive. The router issues the accounting request to the next configured RADIUS server (up to 5).
User passwords and authentication keys of any type are never transmitted as part of the accounting request.
When RADIUS accounting is enabled, the server is responsible for receiving accounting requests and returning a response to the client indicating that it has successfully received the request. Each command issued on the 7705 SAR router generates a record sent to the RADIUS server. The record identifies the user who issued the command and the timestamp.
Accounting can be configured independently from RADIUS authorization and RADIUS authentication.