@misc{rfc8168,
    series =    {Request for Comments},
    number =    8168,
    howpublished =  {RFC 8168},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8168},
    url =       {https://www.rfc-editor.org/info/rfc8168},
    author =    {Tianxiang Li and Cong Liu and Yong Cui},
    title =     {{DHCPv6 Prefix-Length Hint Issues}},
    pagetotal = 9,
    year =      2017,
    month =     may,
    abstract =  {DHCPv6 Prefix Delegation allows a client to include a prefix-length hint value in the IA\_PD option to indicate a preference for the size of the prefix to be delegated, but it is unclear about how the client and server should act in different situations involving the prefix-length hint. This document provides a summary of the existing problems with the prefix-length hint and guidance on what the client and server could do in different situations.},
}