Re: Going dual-stack, how do apps behave and what to do as an operator (Was: Apple Airport Extreme I

On 24/09/2007, at 11:48 PM, Valdis.Kletnieksvt.edu
wrote:

> On Mon, 24 Sep 2007 23:35:12 +1200, Nathan Ward said:
>
>> Probably doesn't work so well if you have 6k people
behind the same
>> NAT, and they all try and use proto-41, though.
>
> If you have 6,000 people behind a single NAT, proto-41
is probably the
> least of your concerns, and Randy Bush may or may not
be thinking of
> awarding you an Innovative Engineering Award. 

Don't worry, /I/ don't do this.

Some large enterprise/campus networks do, though.

Let's revise my number to "2". Just as much as a
problem if they're  
both trying to do proto-41 

The other thing to note - 6to4 kicks in on Vista if it has a
non- 
RFC1918 IPv4 address, so we're talking about people NATing
large  
numbers of non-RFC1918 space. Regardless of how crazy they
might  
seem, these networks exist, and they're preventing people
from  
rolling out IPv6 (AAAA) to production stuff. It's annoying,
because  
they're often the same people who say "I'm not going to
pay attention  
to IPv6, I've got enough addresses.", and we all lose
because of it.  
(That, or when those networks become few enough that we can
turn on  
AAAA records for production stuff, they'll be forced to sort
their  
stuff out).

--
Nathan Ward

On 24-sep-2007, at 13:55, Nathan Ward wrote:

> The other thing to note - 6to4 kicks in on Vista if it
has a non- 
> RFC1918 IPv4 address, so we're talking about people
NATing large  
> numbers of non-RFC1918 space. Regardless of how crazy
they might  
> seem, these networks exist

[...]

> when those networks become few enough that we can turn
on AAAA  
> records for production stuff, they'll be forced to sort
their stuff  
> out).

How far can one bend over backwards before breaking said
back?