[82142] in North American Network Operators' Group

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Re: OMB: IPv6 by June 2008

daemon@ATHENA.MIT.EDU (David Conrad)
Fri Jul 8 16:02:11 2005

In-Reply-To: <038c01c58315$2a414680$6401a8c0@alexh>
Cc: "Mohacsi Janos" <mohacsi@niif.hu>,
	"Daniel Golding" <dgolding@burtongroup.com>,
	"Scott McGrath" <mcgrath@fas.harvard.edu>, <nanog@merit.edu>
From: David Conrad <david.conrad@nominum.com>
Date: Thu, 7 Jul 2005 10:54:25 -0700
To: Alexei Roudnev <alex@relcom.net>
Errors-To: owner-nanog@merit.edu


Alexei,

On Jul 7, 2005, at 9:58 AM, Alexei Roudnev wrote:
> What's the problem with independent address space for every entity  
> (company,
> family, enterprise) which wants it?

It doesn't scale.  Regardless of Moore's law, there are some  
fundamental physical limits that constrain technology.

> How many entities do we have on earth?

Well, there are 6 billion people on the planet.  Don't know how many  
companies or families.  Don't know how many autonomous devices there  
will be (e.g., cars, planes, boats, ships, satellites, light bulbs,  
gastro-intestinal probes, etc. etc.).

> It was a problem, but it IS NOT ANYMORE.

You're not thinking big enough.

> IPSec - see all ISAKMP schema and IPSEC security associations, and  
> see IPSec
> incompatibilities.

Any new protocol has initial interoperability problems when it is  
being developed by different people/teams.

> Compare with SSL (works out-of-the-box in 99.999% cases,
> and allows both, full and hard security with root certificates etc, or
> simple security based on _ok, I trust you first time, then we can  
> work_.

a) I suspect most SSL implementations derive out of the same code base.
b) SSL has been around longer.
c) SSLeay had lots of interoperability issues when it first came out.

> Why MS uses PPTP? Because it is much more practuical vs IPSec.

MS uses PPTP because it meets their business requirements.  The fact  
that it is more practical is a second order effect.

Rgds,
-drc


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