>> You must have access to technology that at least I'm
>> not aware of. We can automate some parts of the process,
>> like hosts can get new addresses via RA, DHCP, and we
>> have some tools for renumbering routers. But what about
>> addresses embedded in firewall configs, applications,
>> DNS, etc?
> For the DNS use UPDATE to update the address records.
> For firewall configs. See your firewall vendor.
> Very very applications need raw addresses. Use the DNS.
Bad idea. DNS fails a lot more often that IP addresses change.
Ietf mailing list