Block IP

This action blocks the source IP at the operating system level for a specified period of time. During this period, all packets from this IP will be dropped.

# Parameter Description

• Expiration Time: Sets the duration of the block (in seconds). When the expiration time is reached, the IP will be automatically unblocked and normal access will be restored. For example, setting it to 600 means blocking the source IP for 600 seconds (i.e., 10 minutes).
• Jitter Time: Adds a random time offset (in seconds) on top of the expiration time. The actual block duration will be a random value between Expiration Time and Expiration Time + Jitter. Introducing Jitter helps avoid a large number of blocked IPs being unblocked simultaneously at the same moment, thereby preventing traffic spikes when unblocking occurs. For example, if the expiration time is set to 600 and Jitter is set to 60, the actual block duration will be randomly selected between 600 and 660 seconds.

# Blocked IP Management

For details, see Blocked IP Management.