//We got punch and can connect
private void OnNatPunch(NatPunchPacket req, IPEndPoint senderEndPoint)
{
//Read info
NetDebug.Write(NetLogLevel.Trace, "[NAT] punch received from {0} - additional info: {1}",
senderEndPoint, req.Token);
//Release punch success to client; enabling him to Connect() to Sender if token is ok
if (UnsyncedEvents)
{
_natPunchListener.OnNatIntroductionSuccess(
senderEndPoint,
req.IsExternal ? NatAddressType.External : NatAddressType.Internal,
req.Token
);
}
else
{
_successEvents.Enqueue(new SuccessEventData
{
TargetEndPoint = senderEndPoint,
Type = req.IsExternal ? NatAddressType.External : NatAddressType.Internal,
Token = req.Token
});
}
}
//We got introduce and must punch
private void OnNatIntroductionResponse(NatIntroduceResponsePacket req)
{
NetDebug.Write(NetLogLevel.Trace, "[NAT] introduction received");
// send internal punch
var punchPacket = new NatPunchPacket {
Token = req.Token
};
Send(punchPacket, req.Internal);
NetDebug.Write(NetLogLevel.Trace, "[NAT] internal punch sent to " + req.Internal);
// hack for some routers
_socket.Ttl = 2;
_socket.SendRaw(new[] { (byte)PacketProperty.Empty }, 0, 1, req.External);
// send external punch
_socket.Ttl = NetConstants.SocketTTL;
punchPacket.IsExternal = true;
Send(punchPacket, req.External);
NetDebug.Write(NetLogLevel.Trace, "[NAT] external punch sent to " + req.External);
}