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why same names, was Re: NANOG 40 agenda posted
At 8:22 -0700 5/29/07, David Conrad wrote:
I'll take a stab at "why?"
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. It's like paying at a cash register - you pay but by cash, charge, atm, ...
But why "need" - okay, need is a strong word, but, if the user is coming from a search engine result page, the search engine is going to hand a URL with a machine name. The search engine doesn't know if the user to service has a v6 pipe (or a v4 pipe even), so the URL won't be customized for v4/v6.
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.
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.
OTOH - in the presentation I gave in May '04 (three years ago - and I didn't think it was pioneering even then, but who knew) I did have some "gotchas" about using the same name.
Edward Lewis +1-571-434-5468
Sarcasm doesn't scale.