%% You should probably cite rfc4265 instead of this I-D.
@techreport{ietf-l3vpn-tc-mib-06,
    number =    {draft-ietf-l3vpn-tc-mib-06},
    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-l3vpn-tc-mib/06/},
    author =    {Thomas Nadeau and Benson Schliesser},
    title =     {{Definition of Textual Conventions for Virtual Private Network (VPN) Management}},
    pagetotal = 6,
    year =      2005,
    month =     apr,
    day =       8,
    abstract =  {This document describes Textual Conventions used for managing Virtual Private Networks (VPNs). {[}STANDARDS-TRACK{]}},
}