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1
So the answer to your question is Yes:
Can I delete and then create a new VPC with the same CIDR 172.31.0.0 or will this cause future issues?
If you delete your default VPC, you can create a new one. You cannot restore a previous default VPC that you deleted, and you cannot mark an existing non-default VPC as a default VPC.
Reference: https://docs.aws.amazon.com/vpc/latest/userguide/default-vpc.html#create-default-vpc
Is there a reason you want to use the default VPC? I'd highly encourage to move away from default VPC as it's not recommended and is a bad practice to use mainly for security reasons.
0
Go ahead and delete the default VPC. It's standard practice for us across all VPCs for all our clients and has never caused the slightest issue.
Thank you for your reply. My main question is more related to the fact of deleting the default VPC, not using it. Should I keep the default VPC and just not use it? is there a recommendation about keeping the default VPC for something? I normally create a new VPC and work on it, but should I keep the default VPC?
You can go ahead and delete it, it wont cause any issues.