IPv6 only network configuration is not supported by vCenter guest OS customization

Products

• VMware vCenter Server

Issue/Introduction

Customer can not customize a guest VM to have IPv6 only network configuration.

Environment

VMware vCenter Server 7.x.x
VMware vCenter Server 8.x.x

Cause

• Guest customization supports both IPv4 and IPv6 configuration, particularly IPv4 configuration is mandatory while IPv6 configuration is optional. This means vCenter guest OS customization supports IPv6 network customization in dual stack configuration only.
  Please refer vSphere Web Service API documentation on CustomizationIPSettings. Reference: vSphere Web Services API
     * ip (CustomizationIpGenerator) property is mandatory, this property is extended by CustomizationCustomIpGenerator, CustomizationDhcpIpGenerator, CustomizationFixedIp, CustomizationUnknownIpGenerator, each of them represents a way of customizing an IPv4 address to guest vm.
     * ipV6Spec* (CustomizationIPSettingsIpV6AddressSpec) property is optional, this property represents the way of customizing an IPv6 address to guest vm.

Resolution

N/A