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I am trying to add a new RDS connection for a PostgreSQL database. I am trying to follow this post to make this set up, but when trying to add the security group in the source field from inbound rules I get this message: You may not specify a referenced group id for an existing IPv4 CIDR rule. If anyone has any idea about how to solve this I would really appreciate your help.

Security group inbound rules: enter image description here

Security group outbound rules: enter image description here

brenda
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1 Answers1

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Deleting the corresponding rule and adding the rule again with the source as the Security Group Id solved the problem. Not sure exactly why !

Praveen Sripati
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