%% You should probably cite rfc2412 instead of this I-D.
@techreport{ietf-ipsec-oakley-01,
    number =    {draft-ietf-ipsec-oakley-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-ipsec-oakley/01/},
    author =    {Hilarie Orman},
    title =     {{The OAKLEY Key Determination Protocol}},
    pagetotal = 55,
    year =      1997,
    month =     may,
    day =       29,
    abstract =  {This document describes a protocol, named OAKLEY, by which two authenticated parties can agree on secure and secret keying material. The basic mechanism is the Diffie-Hellman key exchange algorithm. This memo provides information for the Internet community.},
}