Port Mapping Between Unicast and Multicast RTP Sessions

Document Type Replaced Internet-Draft (avtcore WG)
Last updated 2011-02-04 (latest revision 2011-01-05)
Replaces draft-begen-avt-ports-for-ucast-mcast-rtp
Replaced by draft-ietf-avtcore-ports-for-ucast-mcast-rtp
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-avtcore-ports-for-ucast-mcast-rtp
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document presents a port mapping solution that allows RTP receivers to choose their own ports for an auxiliary unicast session in RTP applications using both unicast and multicast services. The solution provides protection against denial-of-service or packet amplification attacks that could be used to cause one or more RTP packets to be sent to a victim client.


Ali Begen (abegen@cisco.com)
Dan Wing (dwing@cisco.com)
Tom VanCaenegem (Tom.Van_Caenegem@alcatel-lucent.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)