# ClientMessagingOptions.PreferredFamily

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.configuration.clientmessagingoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.configuration.clientmessagingoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Configuration/Options/ClientMessagingOptions.cs)

```csharp
public AddressFamily PreferredFamily
```

Gets or sets the preferred `System.Net.Sockets.AddressFamily` to be used when determining an appropriate client identity.