%% You should probably cite draft-palet-v6tc-goals-tunneling instead of this I-D.
@techreport{ietf-v6ops-assisted-tunneling-requirements-01,
    number =    {draft-ietf-v6ops-assisted-tunneling-requirements-01},
    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-v6ops-assisted-tunneling-requirements/01/},
    author =    {Florent Parent},
    title =     {{Goals for Registered Assisted Tunneling}},
    pagetotal = 14,
    year =      2004,
    month =     oct,
    day =       22,
    abstract =  {This document defines requirements for a tunnel set-up protocol that could be used by an ISP to jumpstart its IPv6 offering to its customers by providing them IPv6 connectivity through tunneling.},
}