[ppml] [address-policy-wg] Re: article about IPv6 vs firewalls vs NAT in arstechnica (seen on slashdot)

[Iljitsch van Beijnum]

[Funny those multi-mailinglist threads - I never know in which  
mailbox they'll congregate!]

On 15-mei-2007, at 0:47, Owen DeLong wrote:

>>> If the qualifications for ULA-C were the same, or, if ULA-C was  
>>> only available to orgs. that had PI, I think that would be  
>>> acceptable.

>> I can't really understand the reasoning behind that.  What are you
>> trying to achieve, why do you want to restrict handing out ULA-C to
>> only a specific (small) subset of folks out there?

> I don't want to give ULA-C to people who have an incentive to abuse
> it as PI.

Don't forget that address space is only useful if it's (almost)  
universally accepted. This is almost certainly not going to be the  
case for any type of ULA.

Apart from that, I would argue that if you want to make sure that  
ULAs can't be used as PI, it's beneficial to make sure that there are  
as many of those block out there as possible, so that the prospect of  
carrying even a subset of those becomes inpractical.

And in my opinion, there is no reason to involve the RIRs in giving  
out ULA-c space, as there are no requirements that must be checked.  
Just make sure the price is high enough that people aren't going to  
use up excessively large amounts and any domain registry/registrar  
should be able to give those out. Something like 5 euros per year  
should make sure people won't register millions of them without  
creating a barrier for those who need ULA space and prefer the  
centrally assigned kind.

>> ULA-C becomes PI the moment folks will accept it in their routing  
>> table
>> (and if that is a serious risk, ULA-L could as easily become PI  
>> the same
>> way).  But why should routing folks do that?

> Hopefully routing folks won't, but, in my experience, $$$ can lead  
> routing
> folks to ignore what should or shouldn't be done from an internet  
> context
> and, instead, focus on what makes money.

If you can get 5% of the internet population to boycott routable ULAs  
that makes them unusable as such so this won't be a problem.