Mono.Nat.NatUtility.NatUtility C# (CSharp) Method

        static NatUtility()
        {
            EnabledProtocols = new List<NatProtocol>
            {
                NatProtocol.Upnp,
                NatProtocol.Pmp
            };

            searching = new ManualResetEvent(false);

            controllers = new List<ISearcher>();
            controllers.Add(UpnpSearcher.Instance);
            controllers.Add(PmpSearcher.Instance);

            controllers.ForEach(searcher =>
                {
                    searcher.DeviceFound += (sender, args) =>
                    {
                        if (DeviceFound != null)
                            DeviceFound(sender, args);
                    };
                    searcher.DeviceLost += (sender, args) =>
                    {
                        if (DeviceLost != null)
                            DeviceLost(sender, args);
                    };
                });
            Thread t = new Thread(SearchAndListen);
            t.IsBackground = true;
            t.Start();
        }