SNMP silence

SNMP silence enables the device to automatically detect and defend against SNMP attacks.

After you enable SNMP, the device automatically starts an SNMP silence timer and counts the number of packets that fail SNMP authentication within 1 minute.

• If the number of the packets is smaller than 100, the device restarts the timer and counting.

• If the number of the packets is equal to or greater than 100, the SNMP module enters a 5-minute silence period, during which the device does not respond to any SNMP packets. After the 5 minutes expire, the device restarts the timer and counting.