@misc{rfc7710,
    series =    {Request for Comments},
    number =    7710,
    howpublished =  {RFC 7710},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC7710},
    url =       {https://www.rfc-editor.org/info/rfc7710},
    author =    {Warren "Ace" Kumari and Ólafur Guðmundsson and P Ebersman and Steve Sheng},
    title =     {{Captive-Portal Identification Using DHCP or Router Advertisements (RAs)}},
    pagetotal = 8,
    year =      2015,
    month =     dec,
    abstract =  {In many environments offering short-term or temporary Internet access (such as coffee shops), it is common to start new connections in a captive-portal mode. This highly restricts what the customer can do until the customer has authenticated. This document describes a DHCP option (and a Router Advertisement (RA) extension) to inform clients that they are behind some sort of captive-portal device and that they will need to authenticate to get Internet access. It is not a full solution to address all of the issues that clients may have with captive portals; it is designed to be used in larger solutions. The method of authenticating to and interacting with the captive portal is out of scope for this document.},
}