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Re: NANOG 40 agenda posted

  • From: Nathan Ward
  • Date: Mon Jun 04 00:21:32 2007



On 4/06/2007, at 12:43 PM, Valdis.Kletnieks@xxxxxx wrote:

On Sun, 03 Jun 2007 15:35:29 EDT, Donald Stahl said:

That said- your v6 support does not have to match your v4 support to at
least allow you to begin testing. You could set up a single server with v6
support, test, and not worry about it affecting production.

If I read the thread so far correctly, Igor can't enable a single server
with v6, because the instant he updates the DNS so an MX for his domain
references a AAAA, that will become the preferred target for his domain
from the entire IPv6 world, and he's gonna need a load balancer from Day 0.

Sounds fair enough to me.
The other mode would be to set up mail.ipv6.yahoo.com and have customers use that for whatever protocol they send/receive mail with, and not point an MX at an AAAA for the time being. However, that means that you can't simply turn it off if it becomes a problem (although, you could switch the AAAA out for an A), and when you end up being able to do a "proper" IPv6 deployment you end up with customers still caring about this legacy DNS entry. That, in short, sounds painful.


--
Nathan Ward