![]() ![]() This can be accomplished by entering the reservations on each DHCP server. Even though a given DHCP scope is carved among several servers and the reservations will fall within one of those splits, you still need to provide redundancy for the reserved hosts. The complication occurs when you throw split-scopes into the mix. I wouldn’t want my production SQL cluster or domain controllers running with DHCP reservations, but for ILO/IPMI, less critical hosts, etc, why not? I have had great success using reservations on management devices. That said, I still firmly believe in static IP assignments for critical server functions. It’s much easier to change the IP address of a DNS server in a single DHCP scope than it is to change on dozens or hundreds of hosts. The value of this is that you get the benefit of dynamically assigning dedicated IP addresses while maintaining manageability of global options such as designated DNS servers. Reservations are used to assign a DHCP client a specific IP address, controlled via MAC address. While we’re on the topic of DHCP and split-scopes, it would be good to mention reservations. ![]()
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