%% You should probably cite rfc7659 instead of this I-D.
@techreport{perrault-behave-natv2-mib-05,
    number =    {draft-perrault-behave-natv2-mib-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-perrault-behave-natv2-mib/05/},
    author =    {Simon Perreault and Tina Tsou (Ting ZOU) and Senthil Sivakumar and Tom Taylor},
    title =     {{Definitions of Managed Objects for Network Address Translators (NATs)}},
    pagetotal = 84,
    year =      2015,
    month =     jun,
    day =       16,
    abstract =  {This memo defines a portion of the Management Information Base (MIB) for devices implementing the Network Address Translator (NAT) function. The new MIB module defined in this document, NATV2-MIB, is intended to replace module NAT-MIB (RFC 4008). NATV2-MIB is not backwards compatible with NAT-MIB, for reasons given in the text of this document. A companion document deprecates all objects in NAT-MIB. NATV2-MIB can be used for the monitoring of NAT instances on a device capable of NAT function. Compliance levels are defined for three application scenarios: basic NAT, pooled NAT, and carrier-grade NAT (CGN).},
}