1. Grid Infrastructure Installation and Upgrade Guide
  2. Configuring Networks for Oracle Grid Infrastructure and Oracle RAC
  3. Configuration Requirements for Oracle Flex Clusters
  4. Oracle Flex Cluster DHCP-Assigned Virtual IP (VIP) Addresses

Oracle Flex Cluster DHCP-Assigned Virtual IP (VIP) Addresses

Configure cluster node VIP names for all the cluster nodes.

Requirements for DHCP-Assigned VIP Addresses

If you want to configure DHCP-assigned VIPs, then during installation, configure cluster node VIP names as follows:

  • Automatically Assigned Names: Select the Configure nodes Virtual IPs assigned by the Dynamic Networks option to allow the installer to assign names to VIP addresses generated through DHCP automatically. Addresses are assigned through DHCP, and resolved by GNS. Oracle Clusterware sends DHCP requests with client ID nodename-vip and without a MAC address. You can verify the availability of DHCP addresses using the cluvfy comp dhcp command.

Note:

Do not use DHCP-assigned VIPs for Oracle Grid Infrastructure 19c. If you get VIP subnet configuration error during Oracle Real Application Cluster (Oracle RAC) installation, then kill the oraagent process and restart the cluster.

Parent topic: Configuration Requirements for Oracle Flex Clusters