%% You should probably cite draft-ietf-lisp-gpe instead of this I-D.
@techreport{lewis-lisp-gpe-02,
    number =    {draft-lewis-lisp-gpe-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-lewis-lisp-gpe/02/},
    author =    {Darrel Lewis and Puneet Agarwal and Larry Kreeger and Fabio Maino and Paul Quinn and Michael Smith and Navindra Yadav},
    title =     {{LISP Generic Protocol Extension}},
    pagetotal = 15,
    year =      2014,
    month =     jul,
    day =       4,
    abstract =  {This draft describes extending the Locator/ID Separation Protocol (LISP) {[}RFC6830{]}, via changes to the LISP header, with three new capabilities: support for multi-protocol encapsulation, operations, administration and management (OAM) signaling, and explicit versioning.},
}