The IP addresses you see as an AWS customer aren’t the same used to route packets between hosts. That said, there’s a huge amount of commodity infrastructure bu

The IP addresses you see as an AWS customer aren’t the same used to route packets between hosts. That said, there’s a huge amount of commodity infrastructure built up that understands IP addresses and routing layers, so unless a new scheme offers tremendous benefits, it won’t get adoption. At least from a security perspective though ip acl’s are falling out of favor to service based identities, which is a good thing. You can see how AWS internally does networking here: https://m.youtube.com/watch?v=ii5XWpcYYnI https://m.youtube.com/watch?v=ii5XWpcYYnI