How Do I Plan the CIDR Blocks for a Connection?

The CIDR block of the VPC, the CIDR block of the local and remote gateways, and the CIDR block used by the on-premises network cannot conflict with each other.
To avoid conflicts with cloud service addresses, do not use 127.0.0.0/8, 169.254.0.0/16, 224.0.0.0/3 or 100.64.0.0/10 for your on-premises network.

Parent topic: Interconnection with the Cloud

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