Configure IPv4/IPv6 Dual-Stack Networking for Oracle Base Database Service

Introduction

Users can now configure IPv4/IPv6 dual-stack networking for Oracle Base Database Service. This new feature enables users to adopt IPv6, a next-generation Internet protocol designed to overcome IPv4 limitations by offering a significantly larger address space. As an intermediary step towards full IPv6 adoption, IPv4/IPv6 dual-stack architecture allows both IP versions to operate in parallel, thus facilitating a smooth and gradual transition from the existing IPv4 network to IPv6.

Previously, only IPv4 addresses were supported when provisioning Oracle Base Database Service database systems (DB systems). Now, users can provision new DB system with IPv4/IPv6 dual-stack networking, enabling both IPv4 and IPv6 addresses.

Objectives

Prerequisites

The minimum requirements for creating a new DB system with IPv4/IPv6 dual-stack networking for Oracle Base Database Service are:

Task 1: Create a VCN with IPv4/IPv6 Dual-Stack Subnet

  1. Log in to the OCI Console, navigate to Networking and click Virtual Cloud Networks.

    Image showing OCI Console Navigation

  2. Click Create VCN.

    Image showing create VCN

  3. Enter the following information for creating a VCN.

    • Name: Enter a VCN name.
    • Create in Compartment: Select compartment.
    • IPv4 CIDR Blocks: Select IPv4 CIDR blocks.
    • Select Use DNS hostnames in this VCN.

    Image showing create VCN up to ipv4 section

  4. Select Assign an Oracle allocated IPv6 /56 prefix to enable IPv4/IPv6 dual-stack networking and click Create VCN.

    Note: OCI provides multiple IPv6 prefix options, namely Global Unicast Addresses (GUA), Unique Local Addresses (ULA), and Bring Your Own IP (BYOIP). Select the option appropriate to a organization’s needs. For more information about IPv6 prefix, see IPv6 Addresses.

    Image showing selecting to assign IPv6 prefix from the toggle switch

  5. Once the VCN has been created, both IPv4 CIDR Block and IPv6 Prefix addresses are associated and displayed in the VCN Information of the Virtual Cloud Network Details page.

    Image showing created VCN with both IPv4 and IPv6

  6. Create a subnet with IPv4, then specify an IPv6 address range for the subnet.

    Image showing creating subnet with IPv6

    The subnet is created with IPv4 CIDR Block and IPv6 Prefix addresses.

    Image showing created subnet with IPv4 and IPv6 addresses

Task 2: Create an Oracle Base Database Service DB System with IPv4/IPv6 Dual-Stack Networking

  1. Go to the OCI Console, navigate to Oracle Database and click Oracle Base Database Service.

    Image showing OCI Console Navigation

  2. In DB Systems, click Create DB Systems.

    Image showing create DB systems

  3. Enter the basic information required for the DB System.

    Image showing create DB system

  4. In the Network Information section, select the previously created dual-stack VCN and Client subnet.

    Image showing configure network settings

    For a single node DB system, users can also provide a private IPv6 address during DB system creation if an existing IP address needs to be reused.

    Image showing configure network settings

    Continue with the DB System creation by providing the required information for the DB system, and then click Create.

  5. Once the DB system is created and available, its SCAN IP address (IPv6) is displayed in the DB system information page.

    Image showing Network information of DB System

    Click Nodes to view its IP address (IPv6) information.

    Image showing Network information of DB System

Acknowledgments

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