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Operating Instructions
68
Notes
• If the log output heading is unchecked, a log will not be recorded.
• In order to improve security, it is necessary to manage your current software and update firmware
as appropriate.
Priority of Security Functions
In order for this product to combat various types of illegal access from the Internet, it is equipped with
the following security functions:
[Prioritization (top to bottom)]
• Packet Filtering (see page 69)
• Easy Security Settings (see page 66)
• Stealth Mode (see page 67)
These functions are executed in the above order. At each level the packet is either passed or
intercepted.
Note
When using the DMZ function (see page 65), the security function cannot be executed for DMZ
terminal packets.
• Attack Detection is
enabled
Display when saving log: DoS
Harmful data from the WAN side is detected, and the packet is
intercepted. A detection record is noted in the log.
The following types of attacks can be detected:
•TCP Scan
• UDP Scan
• ICMP Echo