Re: IPv6 and forensic requests

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

You want this to log the bindings through the nat64

https://www.jool.mx/en/usr-flags-global.html#logging-bib

Then you cross reference that with the /64 that is assigned to the UE in
the CDR

When doing lookups of this data, only look at the first 64 bits. That is
all that matters and is unique to the UE.  The last 64 bits in mobile is
just noise from a Lawful Intercept and logging perspective.


On Sun, Feb 10, 2019 at 7:29 AM Max Tulyev <maxtul () netassist ua> wrote:

> Hello Jordi,
>
> thank you, I will take a look on
> Exactly CLAT was the issue.
>
> First, I thought to provide a /128 to every mobile, and then do a static
> 6to4 to certain public IPv4. But it seems mobile need a /64, and it uses
> a lot of random IPv6 inside assigned /64, several addresses together at
> each time, CLAT uses the most of it (on Android). So direct translation
> 6->public4 is impossible.
>
> 10.02.19 15:51, JORDI PALET MARTINEZ пише:
> > Do you really mean 6to4 or NAT64? Totally different things ...
> >
> > If that's the case, I will suggest you go for Jool instead of Tayga.
> >
> > Also, if you want the customers are able to use old IPv4 apps and
> devices, NAT64 is not sufficient, you need also CLAT at the customer
> premises (so they can run 464XLAT).
> > Regards,
> > Jordi
> >
> >
> >
> > -----Mensaje original-----
> > De: NANOG <nanog-bounces () nanog org> en nombre de Max Tulyev <
> maxtul () netassist ua>
> > Fecha: domingo, 10 de febrero de 2019, 14:26
> > Para: NANOG <nanog () nanog org>
> > Asunto: IPv6 and forensic requests
> >
> >      Hi All,
> >
> >      we are implementing IPv6 only infrastructure.
> >
> >      For IPv4 access, we using tayga for 6to4 translation and then CGN
> for NAT.
> >      There is a number of ways for Linux based NAT to store information
> for
> >      future forensic requests (i.e. "who was it cracking that website?").
> >
> >      But what about 6to4 translators, as tayga? I believe there should be
> >      well-known patches or solutions. The aim is to have what /64 (not
> even
> >      /128) was translated to what IPv4 at the requested time.
> >
> >      Is there any?
> >
> >
> >
> >
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