2.9.8 Duplicate Detection

According to the base RADIUS specification, any message received within a short span of time with the same client source IP address, source UDP port, Authenticator, and Identifier is considered a duplicate request.

DSR detects duplicate requests received from clients and in such cases, avoids sending duplicate requests to servers. DSR supports retransmission of a request to the same connection a user configurable number of times. Such retransmissions contain the same source IP address, source UDP port, Authenticator, and Identifier value to allow the server to detect retransmitted requests.