Is it possible to create an IPV6 Only Application Load Balancer (ALB) in AWS (as of Jan 2024)?

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It is possible to create an IPV4 only or a dual stack (4 and 6) ALB in AWS. Is it possible to create an ALB that supports only IPV6 on the public interface?

AWS will start charging for IPV4 public IPs starting Feb 2024. There are 2 IPs assigned per ALB so about $86/yr extra costs. Regardless of the cost, is there a way to

Shut off IPV4 support on the public interfaces leaving only IPV6 Support ONLY IPv6 traffic from the public internet, but let the ALB translate to IPV4 if the target EC2 instance is IPV4 only. Docs seem to suggest that #2 seem to be supported today should the client come in via IPV6 but there seems to be no option in the AWS Console for #1. If there is via AWS CLI it is not documented.

https://docs.aws.amazon.com/vpc/latest/userguide/aws-ipv6-support.html refers only to Elastic Load Balancing (without specifically mentioning ALB) and says IPV6 only support is not available.

Hoping that concurrent with AWS deciding to charge for public IPs even for ALBs, they would provide a way for IPv6 only support for environments where ipV4 is not needed.

1 Answer
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Accepted Answer

As of 24/1/24 , there is no support only for IPV6 only ALB/NLB's.

AWS
Phani_L
answered a month ago
profile pictureAWS
EXPERT
reviewed a month ago
  • In our organization, 50% of our Public IPv4 Addresses are assigned to ALB's, this means we have to accept paying for these IPV4 addresses?

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