%% You should probably cite draft-ietf-pim-hello-intid instead of this I-D.
@techreport{gulrajani-pim-hello-intid-01,
    number =    {draft-gulrajani-pim-hello-intid-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-gulrajani-pim-hello-intid/01/},
    author =    {Sameer Gulrajani and Stig Venaas},
    title =     {{An Interface ID Hello Option for PIM}},
    pagetotal = 11,
    year =      2011,
    month =     apr,
    day =       7,
    abstract =  {This document defines a new PIM Hello option to advertise an interface id that can be used by PIM protocols to uniquely identify an interface of a neighboring router.},
}