Deutsches Forschungsnetz | German National Research and Education Network Fondation Restena | Restena Foundation This document specifies a transport profile for RADIUS using Transport Layer Security (TLS) over TCP or Datagram Transport Layer Security (DTLS) over UDP as the transport protocol. This enables encrypting the RADIUS traffic as well as dynamic trust relationships between RADIUS servers. The specification obsoletes the experimental specifications in RFC 6614 (RADIUS/TLS) and RFC 7360 (RADIUS/DTLS) and combines them in this specification.