%% You should probably cite rfc6784 instead of this I-D.
@techreport{sakane-dhc-dhcpv6-kdc-option-13,
    number =    {draft-sakane-dhc-dhcpv6-kdc-option-13},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-sakane-dhc-dhcpv6-kdc-option/13/},
    author =    {Shoichi Sakane and Masahiro Ishiyama},
    title =     {{Kerberos Options for DHCPv6}},
    pagetotal = 17,
    year =      2011,
    month =     dec,
    day =       28,
    abstract =  {This document defines new four options of Dynamic Host Configuration Protocol for IPv6 (DHCPv6) to carry a set of configuration information related to the Kerberos protocol {[}RFC4120{]}.},
}