Parameters: ProjectName: Type: String Description: Project name to link stacks Default: am-multi-account PeerCIDR: Type: String Default: 10.193.0.0/16 VPCPeeringConnectionId: Type: String Resources: PeerRoute1: Type: AWS::EC2::Route Properties: RouteTableId: Fn::ImportValue: !Sub '${ProjectName}:PrivateRouteTable1' DestinationCidrBlock: !Ref PeerCIDR VpcPeeringConnectionId: !Ref VPCPeeringConnectionId PeerRoute2: Type: AWS::EC2::Route Properties: RouteTableId: Fn::ImportValue: !Sub '${ProjectName}:PrivateRouteTable2' DestinationCidrBlock: !Ref PeerCIDR VpcPeeringConnectionId: !Ref VPCPeeringConnectionId