Operation Manual, Web Page Settings Guide

14
Web Page Settings
Intrusion/Attack Detection
This section explains how to protect the machine by partially blocking communications with an attempt to attack the
machine via network.
If the machine receives more than the specified number of communications within the set period from the same IP
address, the machine blocks any communication from that IP address
Blocked IP addresses are recorded in the audit log, and registered to the list of denied IP addresses.
In addition, those IP addresses are notified by e-mail to the addresses in the e-mail alert message list 1/2 and dealer
e-mail alert message list.
Deletion of IP addresses from the list of denied IP addresses are also recorded in the audit log.
The maximum capacity of the list of denied IP address is 100, and if it reaches the maximum, all external connection
requests to the machine are denied.
• Intrusion/Attack detection settings and the list of denied IP addresses are retained even after turning on/off the
machine.When [Reset the NIC] or [Restore Factory Defaults] is executed, the intrusion/attack detection settings and list of
denied IP addresses are initialized.
• When you want to send e-mail to the E-mail alert address list or E-mail alert dealer address list, enable [Security Alert] in
[E-mail Alert].
1
Connect to the web page as explained in "Accessing the web page" (►page
3).
2
Display the "Intrusion/Attack Detection" setting screen.
(1) Click the [System Settings] tab ( ).
The setting items of the system settings appear in the setting area.
(2) Click the [Security Settings] button ( ).
(3) Click [Intrusion/Attack Detection].
Intrusion/attack detection settings appear on the right side of the page.
List of Denied
IP Addresses
xxx.xxx.xxx.1
List of Denied
IP Addresses
xxx.xxx.xxx.1
IP address
xxx.xxx.xxx.1
When the first attempt of attacking
the machine is made, the attacker’s
IP address is registered on the list of
denied IP addresses.
Since the attacker’s IP address is
on the list of denied IP addresses,
their attack does not reach the
machine.