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Function Specification
47
3.3.6.
Firewall (FW
）
Detects unauthorized access, such as DoS attacks, and discards the unauthorized access packets. This product
intercepts unauthorized access from the outside by Stateful Packet Inspection (SPI) function. The Stateful Packet
Inspection is a function that dynamically reads data packets that passes the firewall, judges the content, and
opens/closes the port.
[Detection targets]
・
Access packet from WAN port
・
LAND attack, Smurf attack, and IP spoofing attack
[Behavior of operation and notification when threat is detected]
Operation during detection
How to notify during detection
How to cancel detection state
Unauthorized access from outside is
blocked, as well as log output
・
Log is displayed in the security
log. (It is necessary to view it in
Web setting.)
－
[How to stop the security function]
Stopping the operation of the security function increases security risk.
Therefore, it is the customer’s responsibility to
stop the function.
How to stop
Remarks
Remove the check on "Enable Function" on the Firewall
setup. (Refer to Section 5.8.3)
Internet
User Network
Prevention
SA3500G
