Customer owned IP (CoIP) addresses are now available for use with Amazon Relational Database Service (Amazon RDS) on AWS Outposts. CoIP allows you to assign addresses from your local network to services running on your AWS Outposts. Support for COIP makes it easier to access your Amazon RDS databases from your local network using your own IPs. Amazon RDS on Outposts allows you to deploy fully managed database instances in your on-premises environments. AWS Outposts is a fully managed service that extends AWS infrastructure, AWS services, APIs, and tools to virtually any datacenter, co-location space, or on-premises facility for a truly consistent hybrid experience. You can deploy Amazon RDS on Outposts to set up, operate, and scale MySQL and PostgreSQL relational databases on premises, just as you would in the cloud.
Source:: Amazon AWS