Don't forget that on IPv6 you need to find/use the router's
WAN address. Unless you actually wish to ping a specific device, which gets a bit trickier. It has 2, and it's the "Temporary" one that is seen if you do a "What's my IP?" query. That changes frequently.
My broadband basic info/help site - www.robertos.me.uk.
Domains, sites and mail hosting - Tsohost
Connections: OnePlus 8 Pro max 165Mbps down, 24Mbps up on Three, and B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
To argue with mindless bigots is foolish.