website/content/en/docs/reference/command-line-tools-reference/feature-gates/service-ip-static-subrange.md

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Enables a strategy for Services ClusterIP allocations, whereby the ClusterIP range is subdivided. Dynamic allocated ClusterIP addresses will be allocated preferently from the upper range allowing users to assign static ClusterIPs from the lower range with a low risk of collision. See Avoiding collisions for more details.