Currently if you are using an EKS cluster configured for IPv6 with EC2 nodes, you are not able to use the Security Groups for Pods feature. This is a pretty big limitation because you then have to rely on security groups for individual nodes and can not restrict traffic between pods that are on mixed purposes nodes.
whiteadam
commented
1 year ago
Currently if you are using an EKS cluster configured for IPv6 with EC2 nodes, you are not able to use the Security Groups for Pods feature. This is a pretty big limitation because you then have to rely on security groups for individual nodes and can not restrict traffic between pods that are on mixed purposes nodes.
source: https://docs.aws.amazon.com/eks/latest/userguide/security-groups-for-pods.html