%% You should probably cite draft-xie-idr-mpbgp-extension-4map6 instead of this I-D.
@techreport{xie-idr-mpbgp-extention-4map6-00,
    number =    {draft-xie-idr-mpbgp-extention-4map6-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-xie-idr-mpbgp-extention-4map6/00/},
    author =    {Chongfeng Xie and Guozhen Dong and Xing Li},
    title =     {{MP-BGP Extension and the Procedures for IPv4/IPv6 Mapping Advertisement}},
    pagetotal = 13,
    year =      2023,
    month =     jan,
    day =       17,
    abstract =  {This document defines NLRI with specific AFI/SAFI combination, a new BGP path attribute known as the "4map6" and a set of related procedures, which can be used for transferring IPv4/IPv6 address mapping rule to support IPv4 service delivery in multi-domain IPv6-only underlay networks.},
}