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Recommendations for filtering ICMP messages

Document type: Expired Internet-Draft (opsec WG)
Document stream: IETF
Last updated: 2014-01-04 (latest revision 2013-07-03)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

IETF State: WG Document
Document shepherd: No shepherd assigned

IESG State: Expired
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


This document document provides advice on the filtering of ICMPv4 and ICMPv6 messages. Additionaly, it discusses the operational and interoperability implications of such filtering.


Fernando Gont <>
Guillermo Gont <>
Carlos Pignataro <>

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