why same names, was Re: NANOG 40 agenda posted

Tue May 29 19:01:36 UTC 2007

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