UnityEngine.Networking.NetworkTransport.AddHost C# (CSharp) Method

        public static int AddHost(HostTopology topology)
        {
            string ip = null;
            int port = 0;
            return AddHost(topology, port, ip);
        }

        public override void StartServer()
        {
            if (NetworkManager.Get().enableLogging)
            {
                Debug.Log("Transport Start Server");
            }
            HostTopology topology = new HostTopology(GetConfig(), MaxConnections);

            if (SupportWebsocket)
            {
                int websocketHostID = Unet.AddWebsocketHost(topology, ServerWebsocketListenPort);
            }

            int normalHostID = Unet.AddHost(topology, ServerListenPort);
        }