[Fwd: I-D ACTION:draft-ietf-v6ops-icmpv6-filtering-bcp-01.txt]

[Elwyn Davies <elwynd@dial.pipex.com>]

The main change in this update is the addition of Appendix B containing 
an example of the configuration needed for a Linux Netfilter packet 
filter engine (using ip6tables interface).

It also contains a reference to draft-gont-tcpm-icmp-attacks-05 
regarding icmp attacks on TCP.

In the light of some recent discussions in the IESG, we may have to 
revisit the intended status of this document.  It was intended for BCP 
but since there is little experience as yet, we may have to propose this 
as Informational until some experience accumulates.

Regards,
Elwyn

-------- Original Message --------
Subject: 	I-D ACTION:draft-ietf-v6ops-icmpv6-filtering-bcp-01.txt
Date: 	Thu, 09 Mar 2006 15:50:03 -0500
From: 	Internet-Drafts@ietf.org
To: 	i-d-announce@ietf.org
CC: 	v6ops@ops.ietf.org



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IPv6 Operations Working Group of the IETF.

	Title		: Best Current Practice for Filtering ICMPv6 Messages in Firewalls
	Author(s)	: E. Davies, J. Mohacsi
	Filename	: draft-ietf-v6ops-icmpv6-filtering-bcp-01.txt
	Pages		: 34
	Date		: 2006-3-9
	
In networks supporting IPv6 the Internet Control Message Protocol
version 6 (ICMPv6) plays a fundamental role with a large number of
functions, and a correspondingly large number of message types and
options.  A number of security risks are associated with uncontrolled
forwarding of ICMPv6 messages.  On the other hand, compared with IPv4
and the corresponding protocol ICMP, ICMPv6 is essential to the
functioning of IPv6 rather than a useful auxiliary.

This document provides some recommendations for ICMPv6 firewall
filter configuration that will allow propagation of ICMPv6 messages
that are needed to maintain the functioning of the network but drop
messages which are potential security risks.

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