%% You should probably cite rfc9099 instead of this I-D.
@techreport{ietf-opsec-v6-13,
    number =    {draft-ietf-opsec-v6-13},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-opsec-v6/13/},
    author =    {Éric Vyncke and Kiran K. Chittimaneni and Merike Kaeo and Enno Rey},
    title =     {{Operational Security Considerations for IPv6 Networks}},
    pagetotal = 49,
    year =      2018,
    month =     mar,
    day =       1,
    abstract =  {Knowledge and experience on how to operate IPv4 securely is available: whether it is the Internet or an enterprise internal network. However, IPv6 presents some new security challenges. RFC 4942 describes the security issues in the protocol but network managers also need a more practical, operations-minded document to enumerate advantages and/or disadvantages of certain choices. This document analyzes the operational security issues in several places of a network (enterprises, service providers and residential users) and proposes technical and procedural mitigations techniques.},
}