%% You should probably cite draft-ietf-ipsecme-p2p-vpn-problem instead of this I-D.
@techreport{nir-ipsecme-p2p-00,
    number =    {draft-nir-ipsecme-p2p-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-nir-ipsecme-p2p/00/},
    author =    {Yoav Nir and John Veizades and Chris Ulliott and Jorge Coro Mendoza},
    title =     {{Creating Large Scale Mesh VPNs Problem Statement}},
    pagetotal = 12,
    year =      2011,
    month =     oct,
    day =       13,
    abstract =  {This document presents the problem of configuring a large number of IKE/IPsec systems in such a way that any two of them can use IPsec to protect the traffic between them. Manual configuration of all possible tunnels is too cumbersome in such cases, so an automated method is needed.},
}