%% You should probably cite rfc3679 instead of this I-D.
@techreport{ietf-dhc-unused-optioncodes-07,
    number =    {draft-ietf-dhc-unused-optioncodes-07},
    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-dhc-unused-optioncodes/07/},
    author =    {Ralph Droms},
    title =     {{Unused Dynamic Host Configuration Protocol (DHCP) Option Codes}},
    pagetotal = 8,
    year =      2003,
    month =     oct,
    day =       3,
    abstract =  {Prior to the publication of RFC 2489 (which was updated by RFC 2939), several option codes were assigned to proposed Dynamic Host Configuration Protocol (DHCP) options that were subsequently never used. This document lists those unused option codes and directs IANA to make these option codes available for assignment to other DHCP options in the future. The document also lists several option codes that are not currently documented in an RFC but should not be made available for reassignment to future DHCP options.},
}