nanog mailing list archives

Re: DoD IP Space


From: Izaac <izaac () setec org>
Date: Thu, 11 Feb 2021 20:41:15 -0500

On Thu, Feb 11, 2021 at 06:29:42AM -0800, Owen DeLong wrote:
Ridiculous… TCP/IP was designed to be a peer to peer system where each endpoint was uniquely
addressable whether reachable by policy or not.

I think that is a dramatic over-simplification of the IP design criteria
-- as it was already met by NCP or even a single ethernet segment.  But
that's an aside.  I recommend that you read rfc1918, with a particular
focus on Section 2, because I'm about to employ its language:

When dealing at large scale, an incompetent network engineer sees a
network under their control as a single enterprise.  Whereas a competent
network engineer recognizes that they are actually operating a
federation of enterprises.  They identify the seams, design an
architecture which exploits them, and allocate their scarce resources
appropriately.

IPv6 restores that ability and RFC-1918 is a bandaid for an obsolete protocol.

So, in your mind, IPv4 was "obsolete" in 1996 -- almost three years
before IPv6 was even specified?  Fascinating.  I could be in no way
mistaken for an IPv4/NAT apologist, but that one's new on me.

Stop making excuses and let's fix the network

If you want to "fix the network," tolerate neither incompetence or sloth
from its operators.  Educate the former.  Encourage the latter.

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