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All the cloud provider VPCs seem inextriciably linked to IP4 config, which seems to work great. Maybe the low level infrastructure is IP6, but we dont operate at that level.

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I'm starting to think the cloud providers are hoarding IPv4 addresses and see them as an asset, and don't want to "rock the boat".

starting? :) - definitely are. It is also a chicken and an egg problem - until people start shouting they won't implement v6, and people won't want it until there is a reason too (like not getting v4 addresses - which cloud providers solve by just NATing the world)

AWS supports IPv6 on non-default VPCs: https://docs.aws.amazon.com/vpc/latest/userguide/get-started...

I have a hobby project on AWS using it today, with multiple EC2 instances having IPv6 addresses. It works beautifully.

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