ZyXEL Communications ZYWALL USG 2000 Support Notes page 212

ZyWALL USG 2000 Support Notes
applications?
There are two possible reasons for this problem. One is that this application version is not
supported by the Application Patrol (please refer to Application Patrol Support List). The other
is that the Application Patrol needs several session packets for the application identification.
After the session is identified successfully (or it can't be identified), specified action is taken.
If the session is terminated before being identified, application patrol won't take any action.
But it seldom happens.
I04. What is the difference between "Auto" and "Service Ports" settings in the
Application Patrol configuration page?
If the user selects "Auto", the ZyWALL inspects packet by OSL layer 7(signature pattern). By
selecting "Service Ports", the ZyWALL inspects the incoming packet based on layer 4. By
default, "Auto" will be selected once an AppPatrol rule is enabled. Please refer to the
following information in advance to use "Service Ports" option:
(1) Defines the port used in ZyWALL USG 2000. For easy configuration purpose, the ZyWLL
has been pre-configured for the frequent use service port. For example: eDonkey service is
pre-defined to take action on port 4661 ~ 4665 as shown below.
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