> # Coherence Cluster: Configuration: Well Known Addresses

> Column Display Related Tasks Related Topics

> This page displays all the well known addresses for a Coherence cluster.

> The Well Known Addresses (WKA) feature is a mechanism that allows cluster members to discover and join a cluster using unicast instead of multicast. WKA is most often used when multicast networking is undesirable or unavailable in an environment, or when an environment is not properly configured to support multicast. All cluster multicast communication is disabled if WKA is enabled.

> #### Column Display

> You can show fewer or additional data points on this page by expanding Customize this table and modifying the Column Display list. Each data point displays in its own table column.

> The following table lists all of the data points that you can display in columns on this page.

> Name | Description
> --- | ---
> Name | Name of this Coherence cluster configuration well known address.
> Listen Address | The IP address. MBean Attribute: `CoherenceClusterWellKnownAddressBean.ListenAddress` Changes take effect after you redeploy the module or restart the server.

> Related Tasks

> - Import a custom cluster configuration
> - Configure Coherence clusters
> - Configure well known addresses
> - Configure Coherence logging

> Related Topics

> - Deploying Coherence Applications in WebLogic Server
> - Configuring and Managing Coherence Clusters