{product-title} supports multiple types of networking Operators. You can manage the cluster networking using these networking Operators.
The Cluster Network Operator (CNO) deploys and manages the cluster network components in an {product-title} cluster. This includes deployment of the Container Network Interface (CNI) default network provider plug-in selected for the cluster during installation. For more information, see Cluster Network Operator in {product-title}.
The DNS Operator deploys and manages CoreDNS to provide a name resolution service to pods. This enables DNS-based Kubernetes Service discovery in {product-title}. For more information, see DNS Operator in {product-title}.
When you create your {product-title} cluster, pods and services running on the cluster are each allocated IP addresses. The IP addresses are accessible to other pods and services running nearby but are not accessible to external clients. The Ingress Operator implements the Ingress Controller API and is responsible for enabling external access to {product-title} cluster services. For more information, see Ingress Operator in {product-title}.
The External DNS Operator deploys and manages ExternalDNS to provide the name resolution for services and routes from the external DNS provider to {product-title}. For more information, see Understanding the External DNS Operator.