[nomy]

Using Windows Server 2008 R2 SP1 x64.

Its definitely some sort of flood. As soon as I restarted server it continued. I had to stop the server for sometime and check if the spam had stopped. It eventually stopped.

I called it DDoS because I saw multiple server IPs in that console spam i think most were cs1.6 servers from Russia. Of course IPs can be spoofed under UDP packets.

I don't have a hardware firewall, it costs too much to setup from datacenter and not planing for one either.