NAT Behavioral Requirements for ICMP
RFC 5508

Approval announcement
Draft of message to be sent after approval:

From: The IESG <>
To: IETF-Announce <>
Cc: Internet Architecture Board <>,
    RFC Editor <>, 
    behave mailing list <>, 
    behave chair <>
Subject: Protocol Action: 'NAT Behavioral Requirements for ICMP 
         protocol' to BCP 

The IESG has approved the following document:

- 'NAT Behavioral Requirements for ICMP protocol '
   <draft-ietf-behave-nat-icmp-12.txt> as a BCP

This document is the product of the Behavior Engineering for Hindrance 
Avoidance Working Group. 

The IESG contact persons are Magnus Westerlund and Lars Eggert.

A URL of this Internet-Draft is:

Technical Summary

This document specifies the behavioral properties required of the
Network Address Translator (NAT) devices in conjunction with the
ICMP protocol. The objective of this memo is to make NAT devices
more predictable and compatible with diverse application protocols
that traverse the devices. Companion documents provide behavioral
recommendations specific to TCP, UDP and other protocols.

Working Group Summary

There was consensus in the WG to publish this document. 

Document Quality

This is a BCP document, and describes current good practice in existing
NATs, and describes some improvements to current practice.


Document shepherd: Dan Wing,
Responsible AD: Magnus Westerlund,