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AWS Certified Solutions Architect - Professional · AWS
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ALB doesn’t support static IPs. If a customer needs fixed IPs, put AWS Global Accelerator in front of the ALB. You get two static anycast IPs, keep ALB+WAF unchanged, and avoid the complexity of swapping to NLB.
Global Accelerator provides two global static public IPs that act as a fixed entry point to your application endpoints, such as Application Load Balancers, Network Load Balancers, Amazon Elastic Compute Cloud (EC2) instances, and elastic IPs. https://aws.amazon.com/global-accelerator/
A = NLB doe not integrates with WAF B = ALB cannot have Elastic IP attached, ALB cannot have static IP at all C = corect D = CloudFront distributions replies from many IPs, AWS manages a prefix list for this. Not easy to configure on customers side