# KubernetesNetworkConfigProperty

The Kubernetes network configuration for the cluster.

- Source: Generated code
- Type last changed: v2.268.0 · 2 Sep 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_eks_v2 as eks_v2 } from 'aws-cdk-lib';
const kubernetesNetworkConfigProperty: eks_v2.CfnCluster.KubernetesNetworkConfigProperty = {
  elasticLoadBalancing: {
    enabled: false,
  },
  ipFamily: 'ipFamily',
  serviceIpv4Cidr: 'serviceIpv4Cidr',
  serviceIpv6Cidr: 'serviceIpv6Cidr',
};
```

## Properties

- `elasticLoadBalancing`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnCluster.ElasticLoadBalancingProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_eks_v2.CfnCluster.ElasticLoadBalancingProperty.html) — Request to enable or disable the load balancing capability on your EKS Auto Mode cluster.

  For more information, see EKS Auto Mode load balancing capability in the *Amazon EKS User Guide* .

- `ipFamily`: string — Specify which IP family is used to assign Kubernetes pod and service IP addresses.

  If you don't specify a value, `ipv4` is used by default. You can only specify an IP family when you create a cluster and can't change this value once the cluster is created. If you specify `ipv6` , the VPC and subnets that you specify for cluster creation must have both `IPv4` and `IPv6` CIDR blocks assigned to them. You can't specify `ipv6` for clusters in China Regions.

  You can only specify `ipv6` for `1.21` and later clusters that use version `1.10.1` or later of the Amazon VPC CNI add-on. If you specify `ipv6` , then ensure that your VPC meets the requirements listed in the considerations listed in [Assigning IPv6 addresses to pods and services](https://docs.aws.amazon.com/eks/latest/userguide/cni-ipv6.html) in the *Amazon EKS User Guide* . Kubernetes assigns services `IPv6` addresses from the unique local address range `(fc00::/7)` . You can't specify a custom `IPv6` CIDR block. Pod addresses are assigned from the subnet's `IPv6` CIDR.

- `serviceIpv4Cidr`: string — Don't specify a value if you select `ipv6` for *ipFamily* .

  The CIDR block to assign Kubernetes service IP addresses from. If you don't specify a block, Kubernetes assigns addresses from either the `10.100.0.0/16` or `172.20.0.0/16` CIDR blocks. We recommend that you specify a block that does not overlap with resources in other networks that are peered or connected to your VPC. The block must meet the following requirements:

  - Within one of the following private IP address blocks: `10.0.0.0/8` , `172.16.0.0/12` , or `192.168.0.0/16` .
  - Doesn't overlap with any CIDR block assigned to the VPC that you selected for VPC.
  - Between `/24` and `/12` .

  > You can only specify a custom CIDR block when you create a cluster. You can't change this value after the cluster is created.

- `serviceIpv6Cidr`: string — The CIDR block that Kubernetes pod and service IP addresses are assigned from if you created a 1.21 or later cluster with version 1.10.1 or later of the Amazon VPC CNI add-on and specified `ipv6` for *ipFamily* when you created the cluster. Kubernetes assigns service addresses from the unique local address range ( `fc00::/7` ) because you can't specify a custom IPv6 CIDR block when you create the cluster.