Re: [Starlink] Info on IP country ranges

[Alexandre Petrescu <alexandre.petrescu@gmail.com>]

Le 08/12/2023 à 13:24, Steven a écrit :
> Alexandre,
>
>> Are you sure the DHCPv6-PD server is in Starlink network and not on the
>> MikroTik router?
> That would be quite the unusual setup, and even so would require that I obtain said /56 from elsewhere (such as via a tunnel) to then delegate back to myself...
True, it would be unusual, but it is practiced.
>
>> It could be that the MikroTik router runs tunnelbroker, obtains a /56
>> from HE, splits that /56 into multiple /64s and puts it on the DHCPv6-PD
>> local server config files.
> I am confident this is not the case since I configured these routers from scratch.
>
>> It could also be that the DHCPv6-PD server is run on the Dishy.
> It is unlikely that it is on the Dishy, as the latency to the DHCPv6 servers IP address, as well as the first IP hop, indicates the usual Ground->Space->Ground latency I'd expect.

YEs, that latency argument is a good reason.


>
>> It could also be that the DHCPv6-PD server is run on the starlink ground
>> network: maybe on the teleport, maybe deeper on the starlink network.
> Yes, this is the most likely place they are running this, likely the PoP you are being routed through.
>
>> Do you know the IPv6 address of your DHCPv6-PD Server?
> The DHCPv6 server address is a Starlink IPv6 address, the same one as my default gateway (`2406:2d40:xxx:xxx::1`). The /56 I am being allocated is also from the same /32 as this DHCPv6 server, with the /32 being 2406:2d40::/32, which you'll note is allocated to Starlink.

Thanks.  That convinces me it is as you say: the /56 is provided by the 
starlink DHCPv6-PD server situated in the ground network of starlink 
somewhere.

This makes it for a great tool for many things.

Alex

>
> Cheers,
> Steven