User Manual

Using SmartDefense
Chapter 9: Setting Your Security Policy 235
In this field… Do this…
Max.
Connections/Second
from Same Source IP
Type the maximum number of network connections allowed per second
from the same source IP address.
The default value is 100.
Set a lower threshold for stronger protection against DoS attacks.
Note: Setting this value too low can lead to false alarms.
Welchia
The Welchia worm uses the MS DCOM vulnerability or a WebDAV vulnerability.
After infecting a computer, the worm begins searching for other live computers to
infect. It does so by sending a specific ping packet to a target and waiting for the
reply that signals that the target is alive. This flood of pings may disrupt network
connectivity.
You can configure how the Welchia worm should be handled.

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