Help Center/ Virtual Private Cloud/ User Guide (Paris Regions) / FAQ/ VPCs and Subnets/ Can Subnets Communicate with Each Other?

Updated on 2024-03-05 GMT+08:00

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Can Subnets Communicate with Each Other?

Subnets in the same VPC can communicate with each other by default.
VPCs are isolated from each other. Subnets from different VPCs cannot communicate with each other. You can use a VPC peering connection to enable communication between VPCs in the same region.

If subnets have network ACLs associated, network ACL rules should allow communication between the subnets.

Parent topic: VPCs and Subnets

Previous topic: Which CIDR Blocks Are Available for the VPC Service?

Next topic: What Subnet CIDR Blocks Are Available?

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