Thanks for the report with success with IPv6 and Starlink. Do you make inbound connections to devices on your LAN? Do they work?

Starlink recently updated their FAQ with more info on addressing: https://www.starlink.com/support/article/1192f3ef-2a17-31d9-...

As for static addresses, it says "a reservation system retains the ... IPv6 prefix even when the system is off or rebooted. However, relocating the Starlink or software updates may change these addresses."

I suspect in practice the IPv6 address will only change if you get moved to a different POP ground station. Some customers never get moved. I've been moved several times because I'm in NorCal and they keep switching me between Seattle and Los Angeles.

Here's some recent discussion of users reporting what they've observed about changing IPv6 addresses: https://www.reddit.com/r/Starlink/comments/1b6mr4c/how_stati...