Re: [Softwires] I-D Action: draft-ietf-softwire-stateless-4v6-motivation-02.txt

<mohamed.boucadair@orange.com> Tue, 12 June 2012 11:45 UTC

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From: mohamed.boucadair@orange.com
To: liu dapeng <maxpassion@gmail.com>
Date: Tue, 12 Jun 2012 13:44:56 +0200
Thread-Topic: [Softwires] I-D Action: draft-ietf-softwire-stateless-4v6-motivation-02.txt
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Cc: "softwires@ietf.org" <softwires@ietf.org>
Subject: Re: [Softwires] I-D Action: draft-ietf-softwire-stateless-4v6-motivation-02.txt
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Re-,

Please see inline.

Cheers,
Med  


>-----Message d'origine-----
>De : liu dapeng [mailto:maxpassion@gmail.com] 
>Envoyé : mardi 12 juin 2012 11:49
>À : BOUCADAIR Mohamed OLNC/NAD/TIP
>Cc : softwires@ietf.org
>Objet : Re: [Softwires] I-D Action: 
>draft-ietf-softwire-stateless-4v6-motivation-02.txt
>
> Ok, then we can make this more clear in our document.
>
>"States still should be maintained in other equipments,

Med: Why "should"? The NAT is not mandatory and even if port restriction is needed, a host may just restrict its port to be within the range. So, I don't see a reason to change "may" to "should".

 e.g. customer
>premises equipment or host, in order to restrict IP address or 
>port number
>information into the configured context except that a 
>non-shared IPv4 address is
>assigned to a standalone host."

Med: No need to elaborate what the state is about. You asked to add a sentence to say a state may exist in the LAN side, I updated the text to cover your comment: 

"States may still exist in other equipments such as customer premises equipment."


>
>
>Best Regards,
>Dapeng Liu
>
>2012/6/12, mohamed.boucadair@orange.com <mohamed.boucadair@orange.com>:
>> Hi Dapeng,
>>
>> I can't add the port restriction because stateless IPv4/IPv6 
>solutions
>> (e.g., MAP, 4RD) support also the ability to assign a full 
>IP address.
>>
>> Cheers,
>> Med
>>
>>>-----Message d'origine-----
>>>De : liu dapeng [mailto:maxpassion@gmail.com]
>>>Envoyé : mardi 12 juin 2012 09:14
>>>À : BOUCADAIR Mohamed OLNC/NAD/TIP
>>>Cc : softwires@ietf.org
>>>Objet : Re: [Softwires] I-D Action:
>>>draft-ietf-softwire-stateless-4v6-motivation-02.txt
>>>
>>>Hi Med,
>>>
>>>Thanks for posting this new version but I guess it doesn't 
>reflect all
>>>the discussion we had. I suggest to make following modifications.
>>>
>>>"States still should be maintained in other equipments, e.g. 
> customer
>>>premises equipment or host, in order to restrict port 
>numbers within a
>>>dedicated range."
>>>
>>>Please be undestood all the efforts are for precise expression
>>>for the readers.
>>>
>>>Thanks,
>>>
>>>Best Regards,
>>>Dapeng Liu
>>>
>>>2012/6/12, mohamed.boucadair@orange.com 
><mohamed.boucadair@orange.com>:
>>>> Dear WG members,
>>>>
>>>> The new version includes the comments received during the 
>WG LC (from
>>>> Dapeng).
>>>>
>>>> A diff is available here:
>>>>
>>>>
>>>http://tools.ietf.org/rfcdiff?url2=draft-ietf-softwire-stateles
>> s-4v6-motivation-02
>>>>
>>>> Cheers,
>>>> Med
>>>>
>>>>
>>>>>-----Message d'origine-----
>>>>>De : softwires-bounces@ietf.org
>>>>>[mailto:softwires-bounces@ietf.org] De la part de
>>>>>internet-drafts@ietf.org
>>>>>Envoyé : mardi 12 juin 2012 07:43
>>>>>À : i-d-announce@ietf.org
>>>>>Cc : softwires@ietf.org
>>>>>Objet : [Softwires] I-D Action:
>>>>>draft-ietf-softwire-stateless-4v6-motivation-02.txt
>>>>>
>>>>>
>>>>>A New Internet-Draft is available from the on-line
>>>>>Internet-Drafts directories.
>>>>> This draft is a work item of the Softwires Working Group of
>>>the IETF.
>>>>>
>>>>>	Title           : Motivations for Carrier-side
>>>>>Stateless IPv4 over IPv6 Migration Solutions
>>>>>	Author(s)       : Mohamed Boucadair
>>>>>                          Satoru Matsushima
>>>>>                          Yiu Lee
>>>>>                          Olaf Bonness
>>>>>                          Isabel Borges
>>>>>                          Gang Chen
>>>>>	Filename        :
>>>>>draft-ietf-softwire-stateless-4v6-motivation-02.txt
>>>>>	Pages           : 16
>>>>>	Date            : 2012-06-11
>>>>>
>>>>>Abstract:
>>>>>   IPv4 service continuity is one of the most pressing 
>problems that
>>>>>   must be resolved by Service Providers during the IPv6 transition
>>>>>   period - especially after the exhaustion of the public
>>>IPv4 address
>>>>>   space.  Current standardization effort that addresses 
>IPv4 service
>>>>>   continuity focuses on stateful mechanisms.  This document
>>>elaborates
>>>>>   on the motivations for the need to undertake a 
>companion effort to
>>>>>   specify stateless IPv4 over IPv6 approaches.
>>>>>
>>>>>
>>>>>
>>>>>The IETF datatracker status page for this draft is:
>>>>>https://datatracker.ietf.org/doc/draft-ietf-softwire-stateless-
>>>>>4v6-motivation
>>>>>
>>>>>There's also a htmlized version available at:
>>>>>http://tools.ietf.org/html/submission.filename }}-02
>>>>>
>>>>>A diff from previous version is available at:
>>>>>http://tools.ietf.org/rfcdiff?url2=draft-ietf-softwire-stateles
>>>>>s-4v6-motivation-02
>>>>>
>>>>>
>>>>>Internet-Drafts are also available by anonymous FTP at:
>>>>>ftp://ftp.ietf.org/internet-drafts/
>>>>>
>>>>>_______________________________________________
>>>>>Softwires mailing list
>>>>>Softwires@ietf.org
>>>>>https://www.ietf.org/mailman/listinfo/softwires
>>>>>
>>>> _______________________________________________
>>>> Softwires mailing list
>>>> Softwires@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/softwires
>>>>
>>>
>>>
>>>--
>>>
>>>------
>>>Best Regards,
>>>Dapeng Liu
>>>
>
>
>-- 
>
>------
>Best Regards,
>Dapeng Liu
>