Dear Maoke,
Please see inline.
Cheers,
Med
De : Maoke [mailto:fib...@gmail.com]
Envoyé : mercredi 7 septembre 2011 15:43
À : BOUCADAIR Mohamed OLNC/NAD/TIP
Objet : Re: [Softwires] Requirements for extending IPv6 addresses with port
range (draft-boucadair-softwire-stateless-rfc6052-update)
hi all,
i'd like to commet on the interesting question after REQ#5 Do we allow the
support of multiple algorithms?.
my answer is NO. intuitively, it sounds ok if we allow multiple algorithms, as
long as the algorithm type is also encoded in the IPv4-embedded IPv6 address
together with the port index. however, it is only applied for the case of
translating an IPv4-embedded IPv6 address to IPv4. for the reverse direction,
the algorithm selection might be randomly decided by the translator devices.
inconsistency of port indexing algorithm violates the end-to-end transparency.
coordinating algorithm selection is possible but it might must costs.
[Med] I see your point and it makes sense to me. There is also an underlying
question we wanted to discuss: is it acceptable for the WG to specify several
algorithms (see for instance RFC6056) but only one algorithm MUST be enabled in
a network.
btw, it looks the reference on port indexing algorithm analysis should be
...-bsd-... rather than ...-boucadair-... ;-)
[Med] Fixed. Thanks.
best,
maoke
2011/9/7
mohamed.boucad...@orange-ftgroup.commailto:mohamed.boucad...@orange-ftgroup.com
Dear all,
We submitted a new I-D identifying the requirements to be met when designing
the format of IPv4-embedded IPv6 addresses/prefixes enclosing the port
information. The first list of requirements is available at:
http://tools.ietf.org/html/draft-boucadair-softwire-stateless-rfc6052-update-00#section-3
Contributions, comments and suggestions on the requirements section are
encouraged.
Thanks.
Cheers,
Med
-Message d'origine-
De : i-d-announce-boun...@ietf.orgmailto:i-d-announce-boun...@ietf.org
[mailto:i-d-announce-boun...@ietf.orgmailto:i-d-announce-boun...@ietf.org] De
la part de internet-dra...@ietf.orgmailto:internet-dra...@ietf.org
Envoyé : mercredi 7 septembre 2011 13:56
À : i-d-annou...@ietf.orgmailto:i-d-annou...@ietf.org
Objet : I-D Action: draft-boucadair-softwire-stateless-rfc6052-update-00.txt
A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Embedding Port Information in IPv4-Translatable IPv6
Prefixes and IPv4- Embedded IPv6 Addresses
Author(s) : Mohamed Boucadair
Congxiao Bao
Nejc Skoberne
Xing Li
Filename:
draft-boucadair-softwire-stateless-rfc6052-update-00.txt
Pages : 10
Date: 2011-09-07
RFC6052 specifies the algorithmic translation of an IPv6 address to a
corresponding IPv4 address, and vice versa. In particular, RFC6052
specifies the address format to build IPv4-converted and IPv4-
translatable IPv6 addresses. In order to be deployed in the context
of stateless 4/6 solutions, RFC6052 should be updated so that IPv4-
embedded IPv6 addresses convey the port information. This document
identifies a set of requirements to be taken into account when
updating RFC6052 for that purpose.
A companion effort, document at
[I-D.bsd-softwire-stateless-port-index-analysis], is required to
converge on one or a set of algorithms to be used by all stateless
solutions.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-boucadair-softwire-stateless-rfc6052-update-00.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-boucadair-softwire-stateless-rfc6052-update-00.txt
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Dr. Maoke CHEN,
FreeBit Co., Ltd.
13F, 3-6 Maruyamacho, Shibuya-ku, Tokyo 150-0044 Japan
Tel: +81 80 3930 1704
e-mail: m.c...@freebit.netmailto:m.c...@freebit.net
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