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Re: I-D ACTION:draft-ietf-v6ops-icmpv6-filtering-bcp-00.txt
This new wg draft was published this week. It is a substantial rewrite
of the individual draft which Janos and I published in July.
It now covers all the messages that are currently defined for ICMPv6 and
is written in a format which should make it easier for administrators to
crate firewall rules from it.
Comments would be appreciated.
One suggestion we had was to include a set of 'pseudo-code' rules as a
an example of how the recommendations might be implemented.
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-00.txt
Pages : 27
Date : 2005-10-17
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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