Re: Ipv6 help

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

The crazy thing is that PSN doesn't (up to my knowledge) yet work with IPv6 ... but I understand that when several 
players are behind the same CGN, games don't work as expected (may be not all them). So, Sony decided long time ago to 
ban forever, any CGN IPv4 pools that they detect on that situation. It is not something that happens "immediately" you 
have a CGN, but I'n aware of several customers that got into that situation.

Not just Sony, other services are doing the same. I heard about OpenDNS cases as well. 
 

El 26/8/20 16:42, "Brian Johnson" <brian.johnson () netgeek us> escribió:

    I’ve not experienced this with PSN and NAT444. I have a LOT of customers doing it without issue. Maybee it’s that 
the customer has native IPv6 and solves for the problem that way, but then this just becomes make sure IPv6 is provided 
and it solves for the corner case.

    > On Aug 26, 2020, at 2:13 AM, JORDI PALET MARTINEZ via NANOG <nanog () nanog org> wrote:
    > 
    > It was a way to say.
    > 
    > Because you use IPv4 pools in the CGN. Then when detected by some services such as PSN, they are black-listed. 
You use other pools, they become black listed again, and so on.
    > 
    > This is not the case with NAT64/464XLAT.
    > 
    > So yeah, it works but the cost of purchasing CGN is actually becoming higher and you will need sooner or later, 
to buy more IPv4 addresses once all them are black-listed.
    > 
    > I've not heard about anyone that has been able to convince Sony to clean their addresses from the PSN CGN 
black-list.
    > 
    > 
    > 
    > El 26/8/20 9:07, "Mark Andrews" <marka () isc org> escribió:
    > 
    >    How doesn’t it work?  As long as IPv6 is *on* NAT444 + dual stack has the same properties (or better, less 
PMTUD issues) as turning on 464XLAT in the CPE.  Traffic shifts to IPv6 due to hosts preferring IPv6.   You can still 
disable sending RA’s in either scenario.
    > 
    >    Mark
    > 
    >> On 26 Aug 2020, at 16:51, JORDI PALET MARTINEZ via NANOG <nanog () nanog org> wrote:
    >> 
    >> 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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    >> Are you ready for the new Internet ?
    >> http://www.theipv6company.com
    >> The IPv6 Company
    >> 
    >> This electronic message contains information which may be privileged or confidential. The information is 
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    >> 
    >> 
    >> 
    > 
    >    -- 
    >    Mark Andrews, ISC
    >    1 Seymour St., Dundas Valley, NSW 2117, Australia
    >    PHONE: +61 2 9871 4742              INTERNET: marka () isc org
    > 
    > 
    > 
    > 
    > **********************************************
    > IPv4 is over
    > Are you ready for the new Internet ?
    > http://www.theipv6company.com
    > The IPv6 Company
    > 
    > This electronic message contains information which may be privileged or confidential. The information is intended 
to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, 
distribution or use of the contents of this information, even if partially, including attached files, is strictly 
prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any 
disclosure, copying, distribution or use of the contents of this information, even if partially, including attached 
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    > 
    > 




**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.theipv6company.com
The IPv6 Company

This electronic message contains information which may be privileged or confidential. The information is intended to be 
for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, 
distribution or use of the contents of this information, even if partially, including attached files, is strictly 
prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any 
disclosure, copying, distribution or use of the contents of this information, even if partially, including attached 
files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to 
inform about this communication and delete it.