Advanced Security Help
Using the Advanced Settings page, you can protect the Device from being attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood.
Note: FLOOD Filtering will take effect only when the Traffic Statistics in System Tools is enabled.
- Packets Statistics interval (5~60) - The default value is 10. Select a value between 5 and 60 seconds in the pull-down list. The Packets Statistic interval value indicates the time section of the packets statistic. The result of the statistic used for analysis by SYN Flood, UDP Flood and ICMP-Flood.
- DoS Protection - Enable or Disable the DoS protection function. Only when it is enabled, will the flood filters be 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 Device 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 Device will startup the
blocking
function immediately.
- Enable TCP-SYN-FLOOD Attack Filtering - Enable or Disable the TCP-SYN-FLOOD Attack Filtering.
- TCP-SYN-FLOOD Packets Threshold (5~3600) - The default value is 50. Enter a value between 5 ~ 3600. When the current TCP-SYN-FLOOD Packets numbers is beyond the set value, the Device will startup the
blocking
function immediately.
- Ignore Ping Packet from WAN Port - Enable or Disable Ignore Ping Packet from WAN Port. The default setting is disabled. If enabled, the ping packet from Internet cannot access the Device.
- Forbid Ping Packet from LAN Port - Enable or Disable Forbid Ping Packet from LAN Port. The default setting is disabled. If enabled, the ping packet from LAN cannot access the Device. (Defends against some viruses).
Click the Save button to save the settings.
Click the Blocked DoS Host List button to display the DoS host table by blocking.