Sorry, I oversimplified, I can't use my router with Sky. 😞

Even having switched it over to open-source FW and having dug around inside it over SSH, I couldn't find a way to get my Nighthawk R7800 to do the Option 61 thing.

It's not a particular great router, but it otherwise does everything I need it to do and is all setup, so still I figured I'd put up with the white box for a year and then switch again... That was probably nearly two years ago now 😅