IPv6 LAN range keeps changing?
IPv6 connectivity stopped working, so I rebooted my Comcast router (Comcast provided SMC), and when it came back up, my LAN IPv6 range had changed. As a result, I then had to go around all the equipment on my LAN that supports IPv6 and manually renew DHCP leases or reboot it to pick up the new LAN IPv6 range. This is the second time this has happened.
Why is my IPv6 range changing? Or how is a change of IPv6 range expected to automatically propagate to my router, and then all the equipment behind it, without either lengthy IPv6 outages (could be up to a week with the default 10080 minute IPv6 address lifetime!), or time consuming manual intervention that requires me to be physically present?