%% You should probably cite rfc6978 instead of this I-D.
@techreport{touch-tcp-ao-nat-03,
    number =    {draft-touch-tcp-ao-nat-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-touch-tcp-ao-nat/03/},
    author =    {Dr. Joseph D. Touch},
    title =     {{A TCP Authentication Option NAT Extension}},
    pagetotal = 6,
    year =      2012,
    month =     may,
    day =       30,
    abstract =  {This document describes an extension to the TCP Authentication Option (TCP-AO) to support its use over connections that pass through network address and/or port translators (NATs/NAPTs). This extension changes the data used to compute traffic keys, but does not alter TCP-AO's packet processing or key generation algorithms.},
}