Owen DeLong owen at delong.com
Mon Jan 31 22:29:16 CST 2011

On Jan 31, 2011, at 8:15 PM, Jack Carrozzo wrote:

> On Mon, Jan 31, 2011 at 9:55 PM, Jimmy Hess <mysidia at gmail.com> wrote:
>> IPv4's not dead yet;  even the first  RIR exhaustion probable in  3 -
>> 6 months  doesn't end the IPv4 ride.
>> There is some hope more IPv4 organizations will start thinking about
>> their plans for establishing connectivity with IPv6;  so they can
>> commmunicate with IPv6-only hosts that will begin to emerge
>> later.
> What organizations (eye networks) will do is layer NAT till the cows come
> home for some years to come. Buckle up!
> -Jack Carrozzo

All of the eye networks that have looked at this have realized the following
things that you apparently have not:

	1.	Layering NAT beyond 2 deep (one provider, one subscriber)
		doesn't help.

	2.	NAT444 will break lots of things that work in current NAT44.

	3.	Users subjected to this environment after experiencing the
		limited brokenness of NAT44 or full access to the internet
		will not be happy.

	4.	Maintaining NAT444 environments will be a support headache
		and a costly arms race of deployments and management.

	5.	IPv6 will cost a lot less than NAT444 as soon as they can
		get their subscribers fully deployed and is a much more
		desirable alternative.


More information about the NANOG mailing list