Systems, methods, and/or techniques for mitigating attacks on an IoT device at a gateway device may be provided. The gateway device may receive a communication directed to an Internet of Things (IoT) device and forward it to the IoT device. The IoT device may indicate to the gateway device that the communication is associated with an attack and send the gateway device a sleep time period and a request to change a filtering rule set at the gateway device. The gateway device may change the filtering rule set and receive another communication directed to the IoT device. If the another communication is valid based on the filtering rule set with the change and a number of valid packets is less than a threshold, and the sleep time period has expired, the gateway device may send another communication to the IoT device.