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ICMP black hole: problem position

Document type: Expired Internet-Draft (individual)
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Last updated: 2013-01-10 (latest revision 2012-07-09)
Intended RFC status: Unknown
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IESG State: Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


ICMP is a key protocol to exchange control and error messages over the Internet. Unfortunately it is frequent that some routers along a given path do not correctly process this protocol. This document provides a taxonomy of the problem in order to help an end user who suspects ICMP-related problems to better understand the situation, and possibly identify the faulty router(s).


Ludovic Jacquin <>
Vincent Roca <>
Mohamed-Ali Kaafar <>

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