I have a linux server that gets an IPv6 address using SLAAC from the router. However, this address seems to change every few hours, and I want to at least have a longer lease time, if not make it persistent until next reboot.
I know that I could configure a completely static IPv6 address out of the SLAAC subnet. But what if my IPv6 prefix changes? Then all devices would get a new address via SLAAC upon next connect, except for the server.
So is it possible to get a long-living address out of SLAAC? How to customize SLAAC IPv6 life time?
