%% You should probably cite draft-dm-net2cloud-gap-analysis instead of this I-D.
@techreport{dm-vpn-ext-to-cloud-dc-gap-analysis-01,
    number =    {draft-dm-vpn-ext-to-cloud-dc-gap-analysis-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-dm-vpn-ext-to-cloud-dc-gap-analysis/01/},
    author =    {Linda Dunbar and Andrew G. Malis},
    title =     {{Gap Analysis of VPN Extension to Dynamic Cloud Data Center}},
    pagetotal = 12,
    year =      2018,
    month =     apr,
    day =       30,
    abstract =  {This document analyzes the technological gaps necessary to enable existing VPN to securely connect to dynamic workloads hosted in cloud data centers when the cloud DC doesn't have the VPN PEs co- located {[}dynamic-cloudDC{]}.},
}