OfficeScan 10.6 Administrator's Guide - Trend Micro™ Online Help

Scanning for Security Risks
5. Select the ports to block under the Blocked Ports column.
a. If there are no ports in the table, click Add. In the screen that opens, select the
ports to block and click Save.
• All ports (including ICMP): Blocks all ports except the trusted port. If
you also want to block the trusted port, select the Block trusted port check
box in the previous screen.
• Commonly used ports: Select at least one port number for OfficeScan to
save the port blocking settings.
• Trojan ports: Blocks ports commonly used by Trojan horse programs. See
Trojan Port on page C-11 for details.
• A port number or port range: Optionally specify the direction of the
traffic to block and some comments, such as the reason for blocking the
ports you specified.
• Ping protocol (Reject ICMP): Click if you only want to block ICMP
packets, such as ping requests.
b. To edit settings for the blocked port(s), click the port number.
c. In the screen that opens, modify the settings and click Save.
d. To remove a port from the list, select the check box next to the port number
and click Delete.
6. Click Save. The Outbreak Prevention Settings screen displays again.
7. Click Start Outbreak Notification. The outbreak prevention measures you
selected display in a new window.
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