IPv4 & IPv6 single socket listener

static void Main(string[] args)
{
    //This code makes a single socket listen for IPv4 and IPv6 connections
    Socket sock = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
    sock.SetSocketOption(SocketOptionLevel.IPv6, (SocketOptionName)27, 0);
    sock.Bind(new IPEndPoint(IPAddress.IPv6Any, 8000));
    sock.Listen(4);
    Socket client = sock.Accept();
    Console.WriteLine("Client has connected successfully with the server");
}