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Re: [rrg] moving towards recommendation: the current plan

Michael Menth <menth@informatik.uni-wuerzburg.de> Tue, 17 November 2009 06:40 UTC

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Date: Tue, 17 Nov 2009 07:40:07 +0100
From: Michael Menth <menth@informatik.uni-wuerzburg.de>
Organization: University of Wuerzburg
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [rrg] moving towards recommendation: the current plan
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Hi Brian,

Brian E Carpenter schrieb:
> On 2009-11-17 11:59, Michael Menth wrote:
>   
>> Hi Brian,
>>
>> Brian E Carpenter schrieb:
>>     
>>> On 2009-11-16 21:01, Michael Menth wrote:
>>>
>>>  
>>>       
>>>> if NAT66 is an option
>>>>     
>>>>         
>>> Can you define "NAT66" precisely?
>>>   
>>>       
>> We need the a box that translates local IPv6 addresses into global IPv6
>> addresses using a stateless NAT using a one-to-one reversible mapping
>> algorithm for single-homed edge networks. That is precisely what NAT66
>> as described in the draft does according to our understanding.
>>     
>
> Clarification: when I say 'reversible', I mean that the translation
> is reversible before the packet is delivered to the transport layer at
> the remote end (as in 8+8/ILNP or SHIM6).
>   
Ok, yes, we assume that feature in upgraded hosts, but not in classic 
IPv6 host that may also be accommodated in a GLI domain.


> Obviously, any NAT has to perform its local mapping in both directions,
> but tha's not what I meant.
>   
That was the meaning of "reversible" in the NAT66-mrw doc.

Regards,

    Michael

>    Brian
>
>   
>> Regards,
>>
>>    Michael
>>
>>     
>>> The only precise proposal I am aware of is
>>> http://tools.ietf.org/html/draft-mrw-behave-nat66
>>> (which I should stress is *not* an IETF WG document,
>>> despite its name). That is a stateless, non-reversible
>>> NAT.
>>>
>>>    Brian
>>>   
>>>       

-- 
Dr. Michael Menth, Assistant Professor
University of Wuerzburg, Institute of Computer Science
Am Hubland, D-97074 Wuerzburg, Germany, room B206
phone: (+49)-931/31-86644 (new), fax: (+49)-931/888-6632
mailto:menth@informatik.uni-wuerzburg.de
http://www3.informatik.uni-wuerzburg.de/research/ngn

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