During a fresh installation, an appropriate IP mode (IPv4 single stack, IPv6 single stack, or Dual IP-stack) is selected as default in the IP configuration wizard. The IP mode selection is based on the IP addresses assigned to the interface. You can accept the default or change the deployment mode.
Ensure that the selected IP mode has an appropriate IP address configured on the Interface for all nodes.
The following table describes the IP mode configuration on interface and the corresponding operational IP mode:
| IP Mode Configuration on VM Interface | Operational IP Mode |
|---|---|
| If IPv4 address is configured and no IPv6 address is configured on gateway interface | IPv4 single-stack mode |
| If IPv4 address and IPv6 address with global scope are configured on gateway interface | Dual IP-stack mode |
| If no IPv4 address is configured on gateway interface and only IPv6 address with global scope is configured | IPv6 single-stack mode |
During installation, system launches the following wizard to select a deployment mode. You can either accept or change the operational mode.
Note
On the server's IPv6 IP-stack, add a default route with the following syntax:
sudo ip -6 route add default via [gateway-ipv6] dev [gateway-interface]
sudo ip -6 route add default via 2000::5:204:96ff:fed6:f288 dev eth0