We are trying to reduce the number of DC's we have in our domain. We have one DC that has been around for ever with the same IP address. Lots of "other" devices point to that IP. We want to decommission the server as well as the IP address but this could potentially have an impact on many unknown configurations. The question is, would it be safe to add this IP address as a secondary IP on one of our new DC's that is configured as a DNS/WINS/Time server?