[96947] in North American Network Operators' Group

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Re: why same names, was Re: NANOG 40 agenda posted

daemon@ATHENA.MIT.EDU (David Conrad)
Tue May 29 17:54:30 2007

In-Reply-To: <a06230902c28201c8b71b@[10.31.32.75]>
Cc: Nanog <nanog@nanog.org>
From: David Conrad <drc@virtualized.org>
Date: Tue, 29 May 2007 12:01:36 -0700
To: Edward Lewis <Ed.Lewis@neustar.biz>
Errors-To: owner-nanog@merit.edu


Ed,

On May 29, 2007, at 9:22 AM, Edward Lewis wrote:
> First - "the way you ask for names" is not different at the  
> application level, it is different in the "layer" in which you find  
> where to shoot packets.

Right.  The problem is, the methodology by which you shoot packets  
may or may not work.

> If the user types in the domain label (like "nanog") and the  
> application then adds on TLDs and such, the application would have  
> to try the likely set of IPv6 labels to pre-pend.

What a horrible idea.  Applications automatically pre- or appending  
crap to domain name labels shouldn't be done, period.

> As far as any other encoding of the name, whether IPv6 is working  
> is something that the encoder cannot know as the code will probably  
> be run from different points of the collective IP4 and IP6 network.

Exactly.  And since it is impossible to know whether or not there is  
actual IPv6 connectivity to a site that is advertising AAAA records,  
you get into situations where you get a connection attempt, timeout,  
retry, etc., resulting in people getting directives like the one Leo  
pointed to.

The IPv6 Internet is a different network than the IPv4 Internet.   
Same names invites confusion and unhappiness.

Rgds,
-drc


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