%% You should probably cite draft-ietf-behave-multicast instead of this I-D.
@techreport{wing-behave-multicast-00,
    number =    {draft-wing-behave-multicast-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-wing-behave-multicast/00/},
    author =    {Dan Wing},
    title =     {{IGMP Proxy Behavior}},
    pagetotal = 9,
    year =      2004,
    month =     oct,
    day =       19,
    abstract =  {This document describes the behavior of an IGMP Proxy, as implemented in NAT devices, and places requirements on such devices.},
}