nanog mailing list archives

Re: V6 still not supported


From: JORDI PALET MARTINEZ via NANOG <nanog () nanog org>
Date: Mon, 04 Apr 2022 15:08:55 +0200

I don't think this can happen if I'm right and the reason they need to block "shared" IPs is because the games/apps 
just don't work.

If I'm a gamer, and one of my possible ISPs is using CGN, and from time to time stops working, and another ISP is 
providing me a public and/or static IPv4 address, always working, and there is not too much price difference, what I 
will do?

And of course, as I just said in my previous email, the trend is only supported by transitioning to IPv6. Sony has been 
a lagger on that, instead XBOX had IPv6 support quite early and developers where properly trained to use it.

(note that I'm not a gamer, neither have any game console at home, actually never used one!, so I've no preference or 
any business relation with any game related company ... just commenting what I can see)

 
Regards,
Jordi
@jordipalet
 
 

El 4/4/22, 14:06, "Joe Maimon" <jmaimon () jmaimon com> escribió:



    JORDI PALET MARTINEZ via NANOG wrote:
    > No, isn't only a Sony problem, becomes a problem for every ISP that has customers using Sony PSN and have CGN 
(NAT444), their IP blocks are black-listed when they are detected as used CGN. This blocking is "forever" (I'm not 
aware of anyone that has been able to convince PSN to unblock them). Then the ISP will rotate the addresses that are in 
the CGN (which means some work renumbering other parts of the network).
    >
    > You do this with all your IPv4 blocks, and at some point, you don't have any "not black-listed" block. Then you 
need to transfer more addresses.
    >
    > So realistically, in many cases, for residential ISPs it makes a lot of sense to analyze if you have a relevant 
number of customers using PSN and make your numbers about if it makes sense or not to buy CGN vs transfer IPv4 
addresses vs the real long term solution, which is IPv6 even if you need to invest in replacing the customer CPEs.
    >
    >
    > Regards,
    > Jordi
    > @jordipalet
    >   

    I would expect the trend to become that ISP's refuse to accommodate 3rd 
    party vendors shenanigans to the point where it hampers their operations 
    or to the point where it cost them more to do so.

    Likely, they would sooner tell the customer that their vendor (whom they 
    pay money) is blocking the ISP and that there must a) deal with their 
    vendor and/or b) pay/use a dedicated static IP

    Because as you point out, its impossible to support this trend after a 
    certain point, and really, why should you?

    With enough of that attitude, the trend reverses and vendors will have 
    to start using other mechanisms, perhaps even ones where cooperation 
    with the SP is a possibility.

    Joe



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