%% You should probably cite rfc2090 instead of this I-D.
@techreport{emberson-tftp-multicast-opt-00,
    number =    {draft-emberson-tftp-multicast-opt-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-emberson-tftp-multicast-opt/00/},
    author =    {A. Thomas Emberson},
    title =     {{TFTP Multicast Option}},
    pagetotal = 6,
    year =      1996,
    month =     sep,
    day =       3,
    abstract =  {This document describes a new TFTP option. This new option will allow the multiple clients to receive the same file concurrently through the use of Multicast packets. This memo defines an Experimental Protocol for the Internet community.},
}