bool open(int port = 0) {
		close();

		int err = udp_init();
		if(err != NO_ERROR) {
			release_log("%s: udp_init() error %d", name_get(), err);
			return false;
		}
	
		sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
		if (sock == INVALID_SOCKET) {
			release_log("%s: socket() error %d", name_get(), err);
			return false;
		}
		// Буферы приема и отправки
		int size = UDP_BUF_SIZE;
		err = setsockopt(sock, SOL_SOCKET, SO_SNDBUF, (char*)&size, sizeof(size));
		if (err != 0) {
			release_log("%s: setsockopt(SO_SNDBUF) error %d", name_get(), err);
			close();
			return false;
		}
		size *= 5;
		err = setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&size, sizeof(size));
		if (err != 0) {
			release_log("%s: setsockopt(SO_RCVBUF) error %d", name_get(), err);
			close();
			return false;
		}

		// Установка запрета фрагментации пакетов
		int yes = IP_PMTUDISC_DO;
		err = setsockopt(sock, IPPROTO_IP, IP_DONTFRAGMENT, (char*)&yes, sizeof(yes));
		if (err != 0) {
			release_log("%s: setsockopt(IP_DONTFRAGMENT) error %d", name_get(), err);
			close();
			return false;
		}

		sockaddr_in addr_in;
		addr_in.sin_family = AF_INET;
		addr_in.sin_port = htons((uint16_t) port);
		#ifdef _DEBUG
		addr_in.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
		#else
		addr_in.sin_addr.s_addr = htonl(INADDR_ANY);
		#endif

		err = bind(sock, (SOCKADDR*)&addr_in, (socklen_t)sizeof(sockaddr_in));
		if (err != 0) {
			release_log("%s: bind() error %d", name_get(), err);
			close();
			return false;
		}
		
		th_recv = std::thread(recv_thread, this); // Поток с recvfrom()

		return true;
	}