I apologize if this is a basic or obvious question, but when an organization has multiple sites what are the best practices regarding setting up DHCP servers?
In a hypothetical company that has 4 sites, would it be OK to have only 2 DHCP servers and 4 scopes (1 per site) with the second server being used for fault tolerance and failover? For example a company that has 4 sites and uses a centralized infrastructure
with the DHCP servers at the main office.
Site 1 scope 192.168.1.1-254
Site 2 scope 192.168.2.1-254
site 3 scope 192.168.3.1-254
site 4 scope 192.168.4.1-254
Each site would have say the first 20 IPs on the subnet excluded for other servers and routers etc. and the two servers would be clustered. Is this a feasible solution, or completely wrong? what is a good best practice or rule of thumb when designing a DHCP solution for multiple sites?