Security requirements for the Unidirectional Lightweight Encapsulation (ULE) protocol

Document Type Replaced Internet-Draft (individual)
Author Haitham Cruickshank 
Last updated 2008-02-29 (latest revision 2006-10-19)
Replaced by RFC 5458
Stream (None)
Intended RFC status (None)
Expired & archived
plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-ipdvb-sec-req
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The MPEG-2 standard defined by ISO 13818-1 [ISO-MPEG2] supports a range of transmission methods for a range of services. This document provides a threat analysis and derives the security requirements when using the Transport Stream, TS, to support an Internet network-layer using Unidirectional Lightweight Encapsulation (ULE) [RFC4326]. The document also provides the motivation for link-level security for a ULE Stream. A ULE Stream may be used to send IPv4 packets, IPv6 packets, and other Protocol Data Units (PDUs) to an arbitrarily large number of Receivers supporting unicast and/or multicast transmission.


Haitham Cruickshank (

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