@techreport{duffy-ppvpn-ipsec-vlink-00,
    number =    {draft-duffy-ppvpn-ipsec-vlink-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-duffy-ppvpn-ipsec-vlink/00/},
    author =    {Mark Duffy},
    title =     {{Framework for IPsec Protected Virtual Links for PPVPNs}},
    pagetotal = 15,
    year =      2002,
    month =     oct,
    day =       21,
    abstract =  {This memo explores some choices that arise when IPsec is to be used to implement secure 'virtual links' interconnecting customer premises VPN devices and/or network based virtual routers. The main focus is on the network based cases. Requirements are proposed and some relevant aspects of the IPsec protocol suite are discussed. A number of different protocol architectures for virtual links are then evaluated. This memo is informational in nature; it is intended that it will focus discussion toward a standard in this area.},
}