%% You should probably cite rfc6842 instead of this I-D.
@techreport{ietf-dhc-client-id-05,
    number =    {draft-ietf-dhc-client-id-05},
    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-dhc-client-id/05/},
    author =    {Narasimha Swamy and Gaurav Halwasia and SEZ Unit},
    title =     {{Client Identifier Option in DHCP Server Replies}},
    pagetotal = 6,
    year =      2012,
    month =     sep,
    day =       11,
    abstract =  {This document updates RFC2131 {[}RFC2131{]}. The changes to {[}RFC2131{]} defined in this draft clarifies the use of 'client identifier' option by the DHCP servers. The clarification addresses the issues arising out of the point specified by {[}RFC2131{]} that the server 'MUST NOT' return client identifier' option to the client. Requirements},
}