%% You should probably cite rfc2403 instead of this I-D.
@techreport{ietf-ipsec-auth-hmac-md5-96-02,
    number =    {draft-ietf-ipsec-auth-hmac-md5-96-02},
    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-auth-hmac-md5-96/02/},
    author =    {K. Robert Glenn and Cheryl R. Madson},
    title =     {{The Use of HMAC-MD5-96 within ESP and AH}},
    pagetotal = 7,
    year =      1998,
    month =     feb,
    day =       13,
    abstract =  {This memo describes the use of the HMAC algorithm in conjunction with the MD5 algorithm as an authentication mechanism within the revised IPSEC Encapsulating Security Payload and the revised IPSEC Authentication Header. {[}STANDARDS-TRACK{]}},
}