@misc{rfc2003,
    series =    {Request for Comments},
    number =    2003,
    howpublished =  {RFC 2003},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC2003},
    url =       {https://www.rfc-editor.org/info/rfc2003},
    author =    {Charles E. Perkins},
    title =     {{IP Encapsulation within IP}},
    pagetotal = 14,
    year =      1996,
    month =     oct,
    abstract =  {This document specifies a method by which an IP datagram may be encapsulated (carried as payload) within an IP datagram. {[}STANDARDS-TRACK{]}},
}