A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : IP/ICMP Translation Algorithm
Author(s) : F. Baker
Filename : draft-baker-behave-v4v6-translation-02.txt
Pages : 23
Date : 2009-02-21
This document specifies an update to the Stateless IP/ICMP
Translation Algorithm (SIIT) described in RFC 2765. The algorithm
translates between IPv4 and IPv6 packet headers (including ICMP
headers).
This specification addresses both a stateless and a stateful mode.
In the stateless mode, translation information is carried in the
address itself, permitting both IPv4->IPv6 and IPv6->IPv4 session
establishment with neither state nor configuration in the IP/ICMP
translator. In the stateful mode, translation state is maintained
between IPv4 address/transport_port tuples and IPv6 address/
transport_port tuples, enabling IPv6 systems to open sessions with
IPv4 systems. The choice of operational mode is made by the operator
deploying the network and is critical to the operation of the
applications using it.
Significant issues exist in the stateless and stateful modes that are
not addressed in this document, related to the address assignment and
the maintenance of the translation tables, respectively. This
document confines itself to the actual translation.
Acknowledgement of previous work
This document is a product of the 2008-2009 effort to define a
replacement for NAT-PT. It is an update to and directly derivative
from Erik Nordmark's [RFC2765], which similarly provides both
stateless and stateful translation between IPv4 [RFC0791] and IPv6
[RFC2460], and between ICMPv4 [RFC0792] and ICMPv6 [RFC4443]. The
original document was a product of the NGTRANS working group.
The changes in this document reflect five components:
1. Redescribing the network model to map to present and projected
usage.
2. Moving the address format to the framework document, to
coordinate with other drafts on the topic.
3. Description of both stateful and stateless operation.
4. Some changes in ICMP.
5. Updating references.Requirements
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
document, are to be interpreted as described in [RFC2119].
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-baker-behave-v4v6-translation-02.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-baker-behave-v4v6-translation-02.txt>
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