Let's Focus on Moving Forward Re: V6 still not supported
Owen DeLong
owen at delong.com
Thu Mar 31 19:48:39 UTC 2022
> On Mar 29, 2022, at 17:51 , Masataka Ohta <mohta at necom830.hpcl.titech.ac.jp> wrote:
>
> Owen DeLong wrote:
>
>>> As I repeatedly pointed out, end to end NAT is clean preserving
>>> the universal peer to peer nature of the Internet.
>> Nope… It really isn’t.
>
> Wrong.
>
>> The problem of audit trail opacity is still a major issue with any form
>> of stateful NAT.
>
> How poorly you understand NAT.
>
> As I wrote in my draft:
>
> Depending on how port numbers are shared, there are static and
> dynamic E2ENAT or combinations of them. With static E2ENAT, an end
> host is assigned port numbers statically, which is necessary for a
> server with a stable IP address and a port number.
>
> static E2ENAT is not, with your questionable terminology, stateful.
>
> It is even possible to construct legacy NAT which dynamically,
> thus statefully, assign ports only from some static range,
> which does not need state maintenance, for each private IP
> address.
>
> Masataka Ohta
It still suffers from a certain amount of opacity across administrative domains.
Owen
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