We have been mandated to change our entire networking IP addressing scheme, to fit into a new IP address structure of a company which has recently acquired us. We will need changes for DNS, DHCP scopes, all static IP servers and print servers, firewall routes and rule based host changes, managed switches (Avaya C460 VOIP), and a Network Appliance FAS270 filer. What would one recommend, in terms of the order in which IPs should changed? I feel doing domain controllers last would be good, so that one can do as many IP changes as possible via web browsers (switches and Netapp), while still on the domain, before losing connection, without going to console sessions. Maybe this is not the case, and another approach should be used. Also, what things should we look out for, so that the IP migration goes as smoothly as possible?
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