Trend Micro InterScan M Series, Administrator'S Manual

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Trend Micro™ InterScan™ Gateway Security Appliance M-Series Administrator’s Guide
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• UDP: If the product can reach the server using UDP, this is the most lightweight,
fastest solution available. However, this does not work in NAT or firewall
environments. In addition, the transmitting client cannot make sure that the
server does indeed receive the request.
• HTTP/HTTPS: To work under a NAT or firewall environment, a heavyweight
HTTP connection can be used to transport the heartbeat
Control Manager supports both UDP and HTTP/HTTPS mechanisms to report
heartbeats. Control Manager server finds out which mode the InterScan Gateway
Security Appliance applies during the registration process. A separate protocol
handshake occurs between both parties to determine the mode.
Aside from simply sending the heartbeat to indicate the product status, additional
data can upload to Control Manager along with the heartbeat. The data usually
contains InterScan Gateway Security Appliance activity information to display on the
console.
Using the Schedule Bar
Use the schedule bar in the Communicator Scheduler screen to display and set
Communicator schedules. The bar has 24 slots, each representing the hours in a day.
Blue slots denote Working status or the hours that the Communicator sends
information to the Control Manager server. White slots indicate Idle time. Define
Working or Idle hours by toggling specific slots.
You can specify at most three consecutive periods of inactivity. The sample schedule
bar below shows only two inactive hours:
The active periods specified by the bar are from 0:00 A.M. to 7:00 A.M, 8:00 A.M to
3:00 PM, and from 6:00 P.M. to 12:00 P.M.
Determining the Right Heartbeat Setting
When choosing a heartbeat setting, balance between the need to display the latest
Communicator status information and the need to manage system resources. Trend