Tomas,

Thanks. Does this exactly implement draft-mrw-nat66-09.txt?

It would be better to refer to NPTv6 not NAT66, I think.

Regards
   Brian Carpenter




On 2011-03-04 20:10, Tomas Podermanski wrote:
> On 3/3/11 8:48 PM, Brian E Carpenter wrote:
>> On 2011-03-03 19:51, S.P.Zeidler wrote:
>>> Thus wrote Brian E Carpenter ([email protected]):
>>>
>>>> On 2011-03-03 10:49, S.P.Zeidler wrote:
>>>>> Thus wrote Brian E Carpenter ([email protected]):
>>>>>
>>>>>> On 2011-03-03 09:30, S.P.Zeidler wrote:
>>>>>> ...
>>>>>>> Which applications will have trouble with address stability and
>>>>>>> provider independence, thus requiring you to make the benefits of NPTv6
>>>>>>> line up with the applications you want to use??
>>>>>> The usual ones - those that for whatever reason have explicit
>>>>>> dependency on the IP address of the peer.
>>>>> i.e. they will have trouble with PI addresses also?
>>>> No, why?
>>> I am trying to point out that you (and the draft) are claiming that.
>>>
>>> The benefit of NPTv6 is address stability and provider independence.
>>> The benefit of PI is address stability and provider independence.
>>>
>>> The cost of the method NPTv6 applies to get that benefit is that the
>>> addresses change in flight. -This- is the issue.
>>>
>>> The benefit does not cause any trouble.
>>> The means by which you reach this benefit may.
>>>
>>> You see the distinction?
>> Of course. PI has the cost of exploding the BGP4 table.
>> NPTv6 has the cost of destroying address transparency.
>>
>> Since SHIM6 has neither of these costs, are you surprised
>> that I prefer it?
>>
> I completely agree with you. SHIM6 is definitely better solution than
> MAP66. But the problem is that SHIM66 requires support for both server
> and client side. Living in the real world we can not expect that SHIM66
> will be widely supported in less than 5 or 10 years. SHIM66 is nice and
> great solution but not for today.
> 
> MAP66 is a pragmatic solution that can work today (working
> implementation of map66 exists - http://map66.sourceforge.net/). Beleive
> me, there is really huge demand from enterprise to have solution like
> MAP66. MAP66 is easy to understand, easy to implement, follows habits
> that people are used to using in IPv4 world and can work immediately.
> 
>>From application perspective, address rewriting used by MAP66 is not a
> new issue. The technique is used by enterprise to mapping public
> addresses to DMZ for many ears. Almost all application had to deal with
> it somehow.
> 
> Tomas
> 
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