No, this doesn't work

The point your're missing (when I talked before about putting all the costs to 
make a good calculation of each case and then replacing CPEs become actually 
cheaper) is that you need more IPv4 addresses in CGN than in NAT64 and further 
to that, in CGN, your IPv4 pools sooner or later become blocked by PSN (unless 
you don't have gammers among your customers).

El 25/8/20 22:42, "NANOG en nombre de Brian Johnson" 
<[email protected] en nombre de 
[email protected]> escribió:

    I usually solve this problem by designing for NAT444 and dual-stack. This 
solves both problems and allows for users to migrate as they are able/need to. 
If you try and force the change, you will loose users.


    > On Aug 25, 2020, at 3:15 PM, Brandon Martin <[email protected]> 
wrote:
    > 
    > On 8/25/20 3:38 PM, JORDI PALET MARTINEZ via NANOG wrote:
    >> This is very common in many countries and not related to IPv6, but 
because many operators have special configs or features in the CPEs they 
provide.
    > 
    > I really, really hate to force users to use my network edge router (I 
provide the ONT, though, and I provide an edge router that works and most users 
do take it), but it can be tough to ensure users have something that supports 
all the right modern features and can be configured via standard means.
    > 
    > It would be nice if the consumer router industry could get its collective 
act together and at least come up with some easy-ish to understand feature 
support table that customers can match up with their service provider's list of 
needs.  The status quo of a list of devices that work right (which is of course 
often staggeringly short if you're doing any of these modern transition 
mechanisms) that needs constant updating and may not be easily available is not 
ideal.
    > 
    > Heck just having a real, complete list of supported features on the model 
support page on their website would be an improvement...
    > -- 
    > Brandon Martin




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