DHCP Server Conflict Detection
One of the primary decisions any TCP/IP administrator using DHCP must make is how many DHCP servers to deploy. A single server has the advantage of simplicity, but provides no redundancy in the event of failure. It also means that whenever the DHCP server is down, clients can't get addresses. For these reasons, most larger networks use two or more servers.
When you have two servers or more—let's say two for sake of this discussion—you then have another decision to make: How do you divide the address pool between the servers? As I explored in detail in the discussion of DHCP address pools in Chapter 61, there are two options: give the servers overlapping addresses or making them non-overlapping. Unfortunately, in classic ...
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