%% You should probably cite rfc1878 instead of this I-D.
@techreport{rfced-info-pummill-00,
    number =    {draft-rfced-info-pummill-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-rfced-info-pummill/00/},
    author =    {Bill Manning and Troy Pummill},
    title =     {{Variable Length Subnet Table For IPv4}},
    pagetotal = 8,
    year =      1995,
    month =     nov,
    day =       1,
    abstract =  {This memo clarifies issues surrounding subnetting IP networks by providing a standard subnet table. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.},
}