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[enterprise-4.16] HCIDOCS-218: Static dual-stack bootstrap network configuration #98603

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Sep 5, 2025
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[enterprise-4.16] HCIDOCS-218: Static dual-stack bootstrap network configuration #98603

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12 changes: 11 additions & 1 deletion modules/ipi-install-modifying-install-config-for-dual-stack-network.adoc
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Expand Up @@ -9,10 +9,20 @@ endif::[]

:_mod-docs-content-type: PROCEDURE
[id='modifying-install-config-for-dual-stack-network_{context}']
= Optional: Deploying with dual-stack networking
= Deploying IP addressing with dual-stack networking

When deploying IP addressing with dual-stack networking for the bootstrap virtual machine (VM), the bootstrap VM functions with a single IP version.

[NOTE]
====
The following examples are for DHCP. DHCP-based dual stack clusters can deploy with one IPv4 and one IPv6 virtual IP address (VIP) each from Day 1.

Deploying a cluster with static IP addresses involves configuring IP addresses for the bootstrap VM, API, and ingress VIPs. Configuring dual-stack with a static IP set in `install-config` requires one VIP each for API and ingress. Add secondary VIPs after deployment.
====

For dual-stack networking in {product-title} clusters, you can configure IPv4 and IPv6 address endpoints for cluster nodes. To configure IPv4 and IPv6 address endpoints for cluster nodes, edit the `machineNetwork`, `clusterNetwork`, and `serviceNetwork` configuration settings in the `install-config.yaml` file. Each setting must have two CIDR entries each. For a cluster with the IPv4 family as the primary address family, specify the IPv4 setting first. For a cluster with the IPv6 family as the primary address family, specify the IPv6 setting first.

.Example NMState YAML configuration file that includes the IPv4 and IPv6 address endpoints for cluster nodes
[source,yaml]
----
machineNetwork:
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