RFC 7710 · PROPOSED STANDARD · 2015 SUN · 14 JUN 2026

Captive-Portal Identification Using DHCP or Router Advertisements

By W. Kumari, O. Gudmundsson, P. Ebersman, S. Sheng · Published December 2015 · DOI 10.17487/RFC7710

Overview

RFC 7710, “Captive-Portal Identification Using DHCP or Router Advertisements”, is a Proposed Standard document published in December 2015 by W. Kumari, O. Gudmundsson, P. Ebersman, S. Sheng. It has been obsoleted by RFC 8910 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

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.

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

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Relationships to other RFCs

Obsoleted by: RFC 8910

Other RFCs from 2015

Abstract

What “Proposed Standard” means

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