"Component FQDN <component_FQDN> resolved to IPV4 address <IP_address>, which is not within the VSP network <CIDR>" error when importing a VCF Management Component in VCF 9.1

Products

• VCF Operations

Issue/Introduction

• An existing VCF 9.0 environment has Log Management, VIDB, Automation and other components deployed on the VM Management network.
  
  
• When the environment is upgraded to VCF 9.1, the VMware Management Services Platform (VMSP) is deployed on a dedicated VLAN network. Refer VCF Management Dedicated VLAN Network Model.
  
  
• During the import of existing management components into VCF Management Services, the validation process fails at "Validate component specifications before installation" stage with the following error observed under Build -> Lifecycle > VCF Management -> Tasks:
  
  "The resolved IP address <Component_IP_address>' from the FQDN <Component_FQDN> is already in use'
'Component FQDN <component_FQDN> resolved to IPV4 address <IP_address>, which is not within the VSP network <CIDR>"

Environment

VMware Cloud Foundation 9.1

Cause

• The error occurs because the component's IP address (resolved via DNS) is not within the defined CIDR range for the VCF Management Services Platform (VMSP/VSP) network.
• By design, the VSP cluster and all associated management components must reside on the VCF Management Network. The error is triggered when the validation workflow detects that the component being imported is on a different network. Refer: Deploy VCF Management Services and License Server as Part of VCF Upgrade to 9.1

Resolution

To import existing management components into VCF Management Services:

1. Create a new FQDN and assign a new IP address for each component in the DNS server. Ensure the IP address is within the defined CIDR range for the VCF Management Services Platform network. 
   
   
2. Perform the import using the following steps:
    
   1. Login to the VCF Operations UI with an account that has administrative privileges.
   2. Navigate to Build -> Lifecycle > VCF Management -> Components -> Add Component.
   3. Select the Component to be imported.
   4. Choose 'Import configuration from an earlier instance'.
   5. Enter the source component details and validate the connection.
   6. Provide the new FQDN created for the component.
   7. Complete the remaining import workflow and proceed with the installation.