TP-Link TL-WR840N User Manual page 59

Packets Statistics Interval (5~60) - The default value is 10. Select a value between 5 and

60 seconds from the drop-down list. The Packets Statistics Interval value indicates the time
section of the packets statistics. The result of the statistics is used for analysis by SYN Flood,
UDP Flood and ICMP-Flood.
DoS Protection - Denial of Service protection. Check the Enable or Disable button to

enable or disable the DoS protection function. Only when it is enabled, will the flood filters be
enabled.

Note:
Dos Protection will take effect only when the Traffic Statistics in "System Tools →
Statistics" is enabled.
Enable ICMP-FLOOD Attack Filtering - Enable or Disable the ICMP-FLOOD Attack

Filtering.
ICMP-FLOOD Packets Threshold (5~3600) - The default value is 50. Enter a value

between 5 ~ 3600. When the current ICMP-FLOOD Packets number is beyond the set value,
the Router will startup the blocking function immediately.
Enable UDP-FLOOD Filtering - Enable or Disable the UDP-FLOOD Filtering.

UDP-FLOOD Packets Threshold (5~3600) - The default value is 500. Enter a value

between 5 ~ 3600. When the current UPD-FLOOD Packets number is beyond the set value,
the Router will startup the blocking function immediately.
Enable TCP-SYN-FLOOD Attack Filtering - Enable or Disable the TCP-SYN-FLOOD

Attack Filtering.
TL-WR840N
Figure 4-39 Advanced Security
- 50 -
300Mbps Wireless N Router User Guide