Captive Portal ICMP Destination Unreachable

The information below is for an old version of the document
Document Type Expired Internet-Draft (individual)
Authors David Bird  , Warren Kumari 
Last updated 2015-11-02 (latest revision 2015-04-30)
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Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a multi-part ICMP extension to ICMP Destination Unreachable messages to signal that a user is behind a Captive Portal. [ Editor note: The IETF is currently discussing improvements in captive portal interactions and user experience improvements. See: ] [RFC Editor: Please remove this before publication. This document is being stored in github at capport-icmp-unreach . Authors gratefully accept pull requests, and keep the latest (edit buffer) versions there, so commenters can follow along at home.]


David Bird (
Warren Kumari (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)