You may need to configure a failover IP address on your instances for different reasons. For example, you may be:. Some of the countries listed above may not be listed, depending on the availability of IP addresses. If you need to check this for other organisations, please contact them directly. OVHcloud cannot be involved in this regard. A purchase order is then generated. Please allow pop-ups in order to be redirected automatically to the purchase order. Please feel free to give any suggestions in order to improve this documentation.
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IP aliasing is a special network configuration for your OVHcloud dedicated servers, which allows you to associate multiple IP addresses with a single network interface. This guide explains how to add failover IP addresses to your network configuration. OVHcloud is providing you with services for which you are responsible, with regard to their configuration and management. You are therefore responsible for ensuring they function correctly. This guide is designed to assist you in common tasks as much as possible. Nevertheless, we recommend that you contact a specialist service provider if you have difficulties or doubts concerning the administration, usage or implementation of services on a server.
Use Cases Here are some of the things that you can do with multiple IP addresses:. Inspect the limits with care if you plan to use lots of interfaces or IP addresses and expect to switch between different instance sizes from time to time. When you launch an instance or create an interface, a private IP address is created at the same time. You can also allocate Elastic IP addresses and associate them with the primary or secondary IP addresses of an interface. In addition to moving interfaces to other instances, you can also move secondary private IP addresses between interfaces or instances. In order to make use of multiple interfaces and IP addresses, you will need to configure your operating system accordingly. We are planning to publish additional documentation and some scripts to show you how to do this.