public async Task <bool> CheckUdpHolePunchingAvailable()
{
if (!_remoteConnectionInformation.UdpConnectionInformation.IsHolePunchingPossible)
{
return(false);
}
return(await Task.Run(() =>
{
var ipAddress = NetworkUtilities.GetLanIp();
using (var socket = new Socket(SocketType.Dgram, ProtocolType.Udp))
{
socket.Bind(new IPEndPoint(ipAddress, 3478));
IPEndPoint ipEndPoint;
if (SessionTraversalUtilitiesForNAT.IsHolePunchingPossible(socket, out ipEndPoint))
{
return true;
}
socket.Close();
}
return false;
}));
}
public ConfigureServerViewModel()
{
IpAddresses = new ObservableCollection <IpAddressInfo>();
var ipAddresses = Dns.GetHostAddresses(Dns.GetHostName())
.OrderByDescending(x => x.AddressFamily == AddressFamily.InterNetwork)
.Select(x => x.ToString())
.ToList();
ipAddresses.Insert(0, "127.0.0.1");
AvailableIpAddresses = ipAddresses.ToArray();
IpAddresses.Add(new IpAddressInfo {
Ip = "127.0.0.1", Port = 10134
});
IpAddresses.Add(new IpAddressInfo {
Ip = NetworkUtilities.GetLanIp().ToString(), Port = 10134
});
}
public RemoteConnectionInformation GetCoreInformation(ConnectionProtocol connectionProtocol)
{
var information = new RemoteConnectionInformation {
LocalIpAddress = NetworkUtilities.GetLanIp()
};
if ((connectionProtocol & ConnectionProtocol.Tcp) == ConnectionProtocol.Tcp)
{
//nothing available currently
}
if ((connectionProtocol & ConnectionProtocol.Udp) == ConnectionProtocol.Udp)
{
information.UdpConnectionInformation = new UdpConnectionInformation();
try
{
var ipAddress = NetworkUtilities.GetLanIp();
var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.Bind(new IPEndPoint(ipAddress, 3478));
IPEndPoint ipEndPoint;
if (SessionTraversalUtilitiesForNAT.IsHolePunchingPossible(socket, out ipEndPoint))
{
information.UdpConnectionInformation.IsHolePunchingPossible = true;
}
socket.Close();
}
catch (Exception)
{
// ignored
}
}
return(information);
}
public static PhysicalAddress GetDestinationMacAddress(IPAddress address)
{
return(GetDestinationMacAddress(address, NetworkUtilities.GetLanIp()));
}