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16 lines
1014 B
Plaintext
16 lines
1014 B
Plaintext
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// Module included in the following assemblies:
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//
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// * /networking/networking_overview/cidr-range-definitions.adoc
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:_mod-docs-content-type: CONCEPT
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[id="service-cidr-description_{context}"]
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= Service CIDR
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[role="_abstract"]
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To allocate IP addresses for cluster services in {product-title}, specify an IP address range in the Service Classless Inter-Domain Routing (CIDR) parameter. Defining this range ensures that internal services have a dedicated block of addresses for reliable communication without overlapping with node or pod networks.
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ifdef::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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Red{nbsp}Hat recommends, but this task is not mandatory, that the address block is the same between clusters. This does not create IP address conflicts.
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endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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The range must be large enough to accommodate your workload. The address block must not overlap with any external service accessed from within the cluster. The default is `172.30.0.0/16`.
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