%% You should probably cite rfc5619 instead of this I-D.
@techreport{ietf-softwire-security-requirements-09,
    number =    {draft-ietf-softwire-security-requirements-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-softwire-security-requirements/09/},
    author =    {Hidetoshi Yokota and Carl Williams and Shu Yamamoto and Florent Parent},
    title =     {{Softwire Security Analysis and Requirements}},
    pagetotal = 28,
    year =      2009,
    month =     jun,
    day =       11,
    abstract =  {This document describes security guidelines for the softwire "Hubs and Spokes" and "Mesh" solutions. Together with discussion of the softwire deployment scenarios, the vulnerability to security attacks is analyzed to provide security protection mechanisms such as authentication, integrity, and confidentiality to the softwire control and data packets. {[}STANDARDS-TRACK{]}},
}