My lightspeed experience is terrible (and great) for IPv6 they only give a /64 which renews every 300 secs and also cycles the given address, regardless of your duid and/or prevent release (which then triggers that newwanipv6 script that freezes my net for a minute). I've had to just go ipv4 only on my opnsense box and then its great. I really miss Zen and their informative instructions for using your own setup, my communications with LS have been less than stellar. I send them a question about their IPv6 implemantation saying how they aren't meeting standards, rejecting opnsense asking for a /56 (thats what they claim they hand out)(even their eero only gets /64) and i get a response weeks later saying dhcp. thats it, just dhcp. I love the speed and it's stable with a good ping, not sure I'm staying with them though. At least this forum helped me get most of my settings right.