%% You should probably cite rfc8019 instead of this I-D.
@techreport{ietf-ipsecme-ddos-protection-10,
    number =    {draft-ietf-ipsecme-ddos-protection-10},
    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-ipsecme-ddos-protection/10/},
    author =    {Yoav Nir and Valery Smyslov},
    title =     {{Protecting Internet Key Exchange Protocol Version 2 (IKEv2) Implementations from Distributed Denial-of-Service Attacks}},
    pagetotal = 32,
    year =      2016,
    month =     oct,
    day =       1,
    abstract =  {This document recommends implementation and configuration best practices for Internet Key Exchange Protocol version 2 (IKEv2) Responders, to allow them to resist Denial-of-Service and Distributed Denial-of-Service attacks. Additionally, the document introduces a new mechanism called "Client Puzzles" that helps accomplish this task.},
}