I just started testing IPv6, and this question regard address autoconfiguration came across.
If I have static routes pointing to a gateway IPv6 address automatically assigned (IEU-64) and for some reason I have to replace this gateway, the gateway address will change so I will have to recreate all my static routes, right? So address autoconfiguration will cause problem in this case.
The same type of problem can occur with a host with a global unicast address; if I have to replace the NIC or even the complete hardware I will have to reconfigure the DNS.
Every configuration that I made using the IPv6 autoconfigured address will be lost.
Am I missing anything here?