It is not a fixed one-time cost ... because if your users are gamers behind
PSP, Sony is blocking IPv4 ranges behind CGN. So, you keep rotating your
addresses until all then are blocked, then you need to transfer more IPv4
addresses ...
So under this perspective, in many cases it makes more sense to NOT invest in
CGN, and use that money to transfer up-front more IPv4 addresses at once, you
will get a better price than if you transfer them every few months.
Regards,
Jordi
@jordipalet
El 30/3/22, 18:38, "NANOG en nombre de Jared Brown"
<nanog-bounces+jordi.palet=consulintel...@nanog.org en nombre de
nanog-...@mail.com> escribió:
Randy Carpenter wrote:
> >> >> Owen DeLong via NANOG wrote:
> >> >> When your ISP starts charging $X/Month for legacy protocol support
> >> >
> >> > Out of interest, how would this come about?
> >>
> >> ISPs are facing ever growing costs to continue providing IPv4 services.
> > Could you please be more specific about which costs you are referring
to?
> >
> > It's not like IP transit providers care if they deliver IPv4 or IPv6
bits to
> > you.
>
> Have you priced blocks of IPv4 addresses lately?
IPv4 address blocks have a fixed one-time cost, not an ongoing $X/month
cost.
- Jared
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