%% You should probably cite draft-ietf-ipdvb-sec-req instead of this I-D.
@techreport{cruickshank-ipdvb-sec-req-04,
    number =    {draft-cruickshank-ipdvb-sec-req-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-cruickshank-ipdvb-sec-req/04/},
    author =    {Haitham Cruickshank},
    title =     {{Security requirements for the Unidirectional Lightweight Encapsulation (ULE) protocol}},
    pagetotal = 18,
    year =      2006,
    month =     oct,
    day =       19,
    abstract =  {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.},
}