During outbreaks, block vulnerable ports that viruses/malware might use to gain access to OfficeScan agent endpoints.
Configure Outbreak Prevention settings carefully. Blocking ports that are in use makes network services that depend on them unavailable. For example, if you block the trusted port, OfficeScan cannot communicate with the agent for the duration of the outbreak.
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.
Ports commonly used by Trojan programs: Blocks ports commonly used by Trojan horse programs. See Trojan Port for details.
Any port between 1 and 65535, or a 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.
The Outbreak Prevention Settings screen displays again.
The outbreak prevention measures you selected display in a new window.