%% You should probably cite rfc7291 instead of this I-D.
@techreport{ietf-pcp-dhcp-04,
    number =    {draft-ietf-pcp-dhcp-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-pcp-dhcp/04/},
    author =    {Mohamed Boucadair and Reinaldo Penno and Dan Wing},
    title =     {{DHCP Options for the Port Control Protocol (PCP)}},
    pagetotal = 12,
    year =      2012,
    month =     aug,
    day =       7,
    abstract =  {This document specifies DHCP (IPv4 and IPv6) options to configure hosts with Port Control Protocol (PCP) Server names. The use of DHCPv4 or DHCPv6 depends on the PCP deployment scenario.},
}