@misc{rfc3056,
    series =    {Request for Comments},
    number =    3056,
    howpublished =  {RFC 3056},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC3056},
    url =       {https://www.rfc-editor.org/info/rfc3056},
    author =    {Brian E. Carpenter and Keith Moore},
    title =     {{Connection of IPv6 Domains via IPv4 Clouds}},
    pagetotal = 23,
    year =      2001,
    month =     feb,
    abstract =  {This memo specifies an optional interim mechanism for IPv6 sites to communicate with each other over the IPv4 network without explicit tunnel setup, and for them to communicate with native IPv6 domains via relay routers. {[}STANDARDS-TRACK{]}},
}