On 10/27/2021 9:24 AM, Benson Muite wrote: > There being no end-user IPv6 mailing list, it seems possible to set > one up. I'd hoped that DSLReports would have a dedicated sub-forum but no luck. But I did discover that Reddit has one: https://www.reddit.com/r/ipv6/ Meanwhile, I found the right search expression for what I want. IPv6 redundant routing. Further refined by searching for "first hop". I doubt the ISP gateway has any support but it's something to ask for. https://en.wikipedia.org/wiki/Virtual_Router_Redundancy_Protocol And a related article that turned up in my search: https://packetlife.net/blog/2011/apr/18/ipv6-neighbor-discovery-high-availability/