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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