Re: PlayStationNetwork blocking of CGNAT public addresses

[Ca By <cb.list6 () gmail com>]

On Friday, September 16, 2016, Simon Lockhart <simon () slimey org> wrote:

> All,
>
> We operate an access network with several hundred thousand users.
> Increasingly
> we're putting the users behind CGNAT in order to continue to give them an
> IPv4
> service (we're all dual-stack, so they all get public IPv6 too). Due to the
> demographic of our users, many of them are gamers.
>
> We're hitting a problem with PlayStationNetwork 'randomly' blocking some
> of our
> CGNAT outside addresses, because they claim to have received anomalous, or
> 'attack' traffic from that IP. This obviously causes problems for the other
> legitimate users who end up behind the same public IPv4 address.
>
> Despite numerous attempts to engage with PSN, they are unwilling to give us
> any additional information which would allow us to identify the 'rogue'
> users
> on our network, or to identify the 'unwanted' traffic so that we could
> either
> block it, or use it to identify the rogue users ourselves.
>
> Has anyone else come up against the problem, and/or have any suggestions on
> how best to resolve it?
>
> Many thanks in advance,
>
> Simon


Here is a picture of what you are experiencing

http://test-ipv6.com/faq_avoids_ipv6.html

Sometimes people need pictures to understand why IPv6 is important