%% You should probably cite rfc2784 instead of this I-D.
@techreport{meyer-gre-update-02,
    number =    {draft-meyer-gre-update-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-meyer-gre-update/02/},
    author =    {Tony Li and Dino Farinacci and Stanley P. Hanks and David Meyer and Paul S. Traina},
    title =     {{Generic Routing Encapsulation (GRE)}},
    pagetotal = 9,
    year =      2000,
    month =     jan,
    day =       6,
    abstract =  {This document specifies a protocol for encapsulation of an arbitrary network layer protocol over another arbitrary network layer protocol. {[}STANDARDS-TRACK{]}},
}