A Virtual Private Cloud (VPC) peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. You can configure an {AWS} VPC containing an {product-title} cluster to peer with another AWS VPC network.
Before you attempt to uninstall a cluster, you must remove any VPC peering connections from the cluster's VPC. Failure to do so might result in a cluster not completing the uninstall process.
AWS supports inter-region VPC peering between all commercial regions link:https://aws.amazon.com/vpc/faqs/#Peering_Connections[excluding China].
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.Prerequisites
* Gather the following information about the Customer VPC that is required to initiate the peering request:
** Customer AWS account number
** Customer VPC ID
** Customer VPC Region
** Customer VPC CIDR
* Check the CIDR block used by the {product-title} Cluster VPC. If it overlaps or matches the CIDR block for the Customer VPC, then peering between these two VPCs is not possible; see the Amazon VPC link:https://docs.aws.amazon.com/vpc/latest/peering/invalid-peering-configurations.html[Unsupported VPC peering configurations] documentation for details. If the CIDR blocks do not overlap, you can proceed with the procedure.
.Procedure
. link:https://docs.aws.amazon.com/vpc/latest/peering/create-vpc-peering-connection.html#create-vpc-peering-connection-local[Initiate the VPC peering request].
. link:https://docs.aws.amazon.com/vpc/latest/peering/create-vpc-peering-connection.html#accept-vpc-peering-connection[Accept the VPC peering request].
. link:https://docs.aws.amazon.com/vpc/latest/peering/vpc-peering-routing.html[Update your Route tables for the VPC peering connection].
