Making Use of 240/4 NetBlock

Abraham Y. Chen aychen at
Mon Mar 14 01:46:07 UTC 2022

Hi, Jordi:

1)    " ... Because it is a single Internet, and what we do in some 
parts of Internet will affect others? ... ":    The nice thing about the 
EzIP scheme is that it proposes a collection of overlay network modules 
(the RAN - Regional Area Network), each is tethered from the existing 
Internet core via one IPv4 public address as the umbilical cord which 
isolates the two, except exchanging IP packets conforming to the 
established Internet protocol. So, EzIP essentially proposes to create a 
parallel cyberspace practically independent of the current one. There 
should be no concern about interfering each other.

2)    " ... many previous unsuccessful discussions at IETF about 240/4: 
...   ":     Perhaps I am from the old engineer school, I was inspired 
by a street legend that,

     After Thomas Edison tried over one thousand types of material to 
replace the lead-acid battery, people with conventional wisdom declared 
that he had failed one thousand times. Edison responded by saying that 
"I now know there are at least one thousand types of material that can 
not replace the lead-acid battery.

     The moral of the story is that after one century, we are now 
beginning to use Lithium based battery which by itself went through 
tremendous amount of R&D efforts. So, I highly respect those who focus 
on alternative possibilities, instead of those regurgitating on 
unsuccessful discussions of proposals, let alone those avoid studying 
the root cause of the failed experiments.


Abe (2022-03-13 21:45)

NANOG Digest, Vol 170, Issue 13
Message: 23
Date: Sat, 12 Mar 2022 09:21:01 +0100
From: JORDI PALET MARTINEZ<jordi.palet at>
To: North American Network Operators' Group<nanog at>
Subject: Re: Making Use of 240/4 NetBlock
Message-ID:<BE38196A-ABE8-4445-BF65-CB3E02B8C343 at>
Content-Type: text/plain;	charset="UTF-8"

Because it is a single Internet, and what we do in some parts of Internet will affect others?

Because, at least in my case, I'm investing my efforts in what it seems to be the best in the long-term for the global community, not my personal preferences?

?El 12/3/22 9:10, "William Herrin"<bill at>  escribi?:

     On Fri, Mar 11, 2022 at 11:58 PM JORDI PALET MARTINEZ via NANOG
     <nanog at>  wrote:
     > Exactly, many previous unsuccessful discussions at IETF about 240/4: IPv6 is the only viable long-term solution.
     > The effort to ?reinvent? any part of IPv4 or patches to it, then test that everything keeps working as expected, versus the benefits and gained time, it is much best invested in continue the IPv6 deployment which is already going on in this region and the rest of the world.
     > It would not make sense, to throw away all the efforts that have been already done with IPv6 and we should avoid confusing people.
     > I just think that even this thread is a waste of time (and will not further participate on it), time that can be employed in continue deploying IPv6.

     Why are so many otherwise smart engineers so vulnerable to false
     dilemma style fallacies? There's no "either/or" here. It's not a zero
     sum game. If you don't see value in doing more with IPv4 then why
     don't you get out of the way of folks who do?

     Bill Herrin

     William Herrin
     bill at


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