public void Socket_EnableDualModeAfterV4Bind_Throws()
{
using (Socket serverSocket = new Socket(SocketType.Stream, ProtocolType.Tcp))
{
serverSocket.DualMode = false;
serverSocket.BindToAnonymousPort(IPAddress.IPv6Any);
Assert.Throws<SocketException>(() =>
{
serverSocket.DualMode = true;
});
}
}
}