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Conditions for Private IP Address Changes in Amazon RDS

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What are the conditions that cause private IP address changes in Amazon RDS?

The following site explains the conditions under which RDS IP addresses can change: https://repost.aws/knowledge-center/rds-ip-address-issues When testing several scenarios with Aurora PostgreSQL:

  • Stopping and restarting an instance did not change its private IP
  • Failover between primary and secondary instances only switched their roles while maintaining their original IP addresses

While Aurora doesn't allow manual private IP assignment during instance creation, the automatically assigned IPs appear to remain constant throughout the instance lifecycle. This observation raises the question: Are Aurora's private IP addresses actually immutable once assigned?

Topics
Networking & Content DeliveryDatabase
Tags
Amazon VPCAmazon Relational Database ServiceDatabaseAmazon Aurora
Language
English

asked 2 years ago499 views

1 Answer
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Hi.

Section "The IP addresses of my DB instances aren't consistent" of https://repost.aws/knowledge-center/rds-ip-address-issues list all possible situations when IP addresses of an RDS instance can change

Best,

Didier

EXPERT

answered 2 years ago

EXPERT

reviewed 2 years ago

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