@misc{rfc6431,
    series =    {Request for Comments},
    number =    6431,
    howpublished =  {RFC 6431},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6431},
    url =       {https://www.rfc-editor.org/info/rfc6431},
    author =    {Teemu Savolainen and Tina Tsou (Ting ZOU) and Gabor Bajko and Pierre Levis and Mohamed Boucadair},
    title =     {{Huawei Port Range Configuration Options for PPP IP Control Protocol (IPCP)}},
    pagetotal = 16,
    year =      2011,
    month =     nov,
    abstract =  {This document defines two Huawei IPCP (IP Control Protocol) options used to convey a set of ports. These options can be used in the context of port range-based solutions or NAT-based solutions for port delegation and forwarding purposes. This document is not an Internet Standards Track specification; it is published for informational purposes.},
}