@techreport{dunbar-vpn4dc-problem-statement-00,
    number =    {draft-dunbar-vpn4dc-problem-statement-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-dunbar-vpn4dc-problem-statement/00/},
    author =    {Linda Dunbar and Ning So},
    title =     {{VPN4DC Problem Statement}},
    pagetotal = 9,
    year =      2011,
    month =     oct,
    day =       24,
    abstract =  {VPN4DC is for extending an existing VPN to connect hosts in public data center(s) which are purchased or leased by VPN client. This draft describes the issues and problems associated with this kind of services.},
}