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Re: Root Cause Re: 202401102221.AYC Re: Streamline The CG-NAT Re: 202401100645.AYC Re: IPv4 address block


From: Mu <mu () zuqq me>
Date: Fri, 12 Jan 2024 20:04:00 +0000

Would it be possible for you to reply in-thread, rather than creating a new thread with a new subject line every time 
you reply to someone?

Trying to follow the conversation becomes very difficult for no reason.
On Friday, January 12th, 2024 at 2:55 PM, Abraham Y. Chen <aychen () avinta com> wrote:

Hi, Tony:

0) As the saying goes, there is more than one way to skin a cat. We do not need to address a request by literally 
following the thought trend. In troubleshooting, engineers are taught to look for the Root-Cause which more than 
often turns out to be something else originally thought. In this case, the "Any idea" hints that requester is 
open-minded for possible alternatives other than stated on the surface.

1) When reviewing a problem, we need to go one or more steps toward the source or the origin to look for the 
solution. Since the predominant operation model is CDN supported by CG-NAT, the primary reason to look for a publicly 
routable IPv4 address is to create another CG-NAT cluster. On the other hand, if there is a way to expand the 
capacity of the existing CG-NAT cluster, the need for additional publicly routable IPv4 address is reduced.

Regards,

Abe (2024-01-12 14:54)

On 2024-01-10 23:26, Tony Wicks wrote:

2) "... an operator clearly looking to acquire *publicly routable* space without being clear that this suggestion 
wouldn't meet their needs. ":

Since 240/4 has 256M addresses while 100.64/10 has only 4M, a current CG-NAT cluster can be expanded 64 fold once 
the 240/4 is used. Looking from another angle, an IAP will then be able to expand the subscriber set 64 fold with 
still the original one publicly routable IPv4 address.

The OP asked for “Any idea please on the best way to buy IPv4 blocs and what is the price”. I would expect they want 
actual public IPv4 address blocks and not internal CGNAT space. While the idea of using 240/4 instead of 100.64/10 
would certainly have some merit I don’t believe its in any way related to what this OP asked for.

regards

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