Re: Ipv6 help

[JORDI PALET MARTINEZ via NANOG <nanog () nanog org>]

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" <nanog-bounces+jordi.palet=consulintel.es () nanog org en nombre 
de brian.johnson () netgeek us> 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 <lists.nanog () monmotha net> 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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