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by Sohcahtoa82
1015 days ago
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Because there's more than just the local IP address to worry about. Remember, all of EC2 Classic was in a single /8 of private IPs. You could communicate with EC2 instances in another account via their private IP address. If you have two instances in different accounts that need to communicate, upgrading from EC2 Classic to VPC couldn't be done automatically. |
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