%% You should probably cite rfc7602 instead of this I-D.
@techreport{ietf-isis-extended-sequence-no-tlv-04,
    number =    {draft-ietf-isis-extended-sequence-no-tlv-04},
    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-isis-extended-sequence-no-tlv/04/},
    author =    {Uma Chunduri and Wenhu Lu and Albert Tian and Naiming Shen},
    title =     {{IS-IS Extended Sequence number TLV}},
    pagetotal = 11,
    year =      2015,
    month =     jan,
    day =       6,
    abstract =  {This document defines Extended Sequence number TLV to protect Intermediate System to Intermediate System (IS-IS) PDUs from replay attacks.},
}