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Re: [Softwires] 4rd-u tunnels and stateful NAT64s

Rémi Després <despres.remi@laposte.net> Fri, 16 March 2012 08:28 UTC

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From: Rémi Després <despres.remi@laposte.net>
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Date: Fri, 16 Mar 2012 09:28:22 +0100
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To: Maoke <fibrib@gmail.com>
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Cc: Softwires WG <softwires@ietf.org>
Subject: Re: [Softwires] 4rd-u tunnels and stateful NAT64s
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2012-03-16 02:07, Maoke:

> 
> on the other hand, may i suggest not to term "4rd tunnel" anymore? it confuses. i emphasized it is NOT a TUNNEL to the common understanding at all

A "4rd" tunnel isn't "any" tunnel. 
It is only that which is defined by the 4rd-u specification.


> (but it seems you never?seldom respond to this point, nor to the ICMP issue details. ) - maoke

Having already answered (see just below), and having received so far no reaction on this subject, I don't think I should have done more.
Your complaining about my insufficiently answering is therefore undeserved (IMHO).

Please restate the ICMP issue you still have in mind.
I will try to answer (as usual).


"2012-03-09 09:49, Rémi Després :
>> ...
>> i don't incline to use the term "tunneling" since tunnel could have a variety of forms, among which encapsulation is one but not the only one. 
> 
> Exactly: 4rd uses header-mapping tunnels, and MAP-E uses encapsulation tunnels."


The fact is that there is no noticeable difference, e2e, between:
- IPv4 packets that are only natively routed
- IPv4 packets that are tunneled on their way any number of times (be it with 4rd tunnels or any other tunnels).

We have, I think, more important subjects to debate.

RD

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