Captive-Portal Identification Using DHCP or Router Advertisements (RAs) (RFC7710)
Original Publication Date: 2015-Dec-01
Included in the Prior Art Database: 2016-Feb-07
Internet Society Requests For Comment (RFCs)
W. Kumari: AUTHOR [+3]
In many environments, users need to connect to a captive-portal device and agree to an Acceptable Use Policy (AUP) and/or provide billing information before they can access the Internet. It is anticipated that the IETF will work on a more fully featured protocol at some point, to ease interaction with captive portals. Regardless of how that protocol operates, it is expected that this document will provide needed functionality because the client will need to know when it is behind a captive portal and how to contact it.
Internet Engineering Task Force (IETF) W. Kumari Request for Comments: 7710 Google Category: Standards Track O. Gudmundsson ISSN: 2070-1721 CloudFlare P. Ebersman Comcast S. Sheng ICANN December 2015
Captive-Portal Identification Using DHCP or Router Advertisements (RAs)
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.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7710.
al. Standards Track [Page 1]
RFC 7710 DHCP Captive-Portal December 2015
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