ZyXEL Communications ZyXEL ZyWALL USG-1000, User Manual

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Chapter 29 Application Patrol
ZyWALL USG 2000 User’s Guide
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29.4 The Other Applications Screen
Sometimes, the ZyWALL cannot identify the application. For example, the
application might be a new application, or the packets might arrive out of
sequence. (The ZyWALL does not reorder packets when identifying the
application.)
The Other (applications) screen controls the default policy for TCP and UDP traffic
that the ZyWALL cannot identify. You can use source zone, destination zone,
destination port, schedule, user, source, and destination information as criteria to
create a sequence of specific conditions, similar to the sequence of rules used by
firewalls, to specify what the ZyWALL should do more precisely. You can also
control the bandwidth used by these other applications.This screen also allows you
to add, edit, and remove conditions to this default policy.
Priority Enter a number between 1 and 7 to set the priority for this application’s
traffic that matches this policy. The smaller the number, the higher the
priority.
The ZyWALL gives traffic of an application with higher priority bandwidth
before traffic of an application with lower priority.
The ZyWALL uses a fairness-based (round-robin) scheduler to divide
bandwidth between applications with the same priority.
The number in this field is ignored if the incoming and outgoing limits
are both set to 0. In this case the traffic is automatically treated as being
set to the lowest priority (7) regardless of this field’s configuration.
Maximize
Bandwidth
Usage
Enable maximize bandwidth usage to let the traffic matching this policy
“borrow” any unused bandwidth on the out-going interface.
After each application gets its configured bandwidth rate, the ZyWALL
uses the fairness- based scheduler to divide any unused bandwidth on
the out-going interface amongst applications that need more bandwidth
and have maximize bandwidth usage enabled.
Log Select whether to have the ZyWALL generate a log (log), log and alert
(log alert) or neither (no) when the application’s traffic matches this
policy. See
Chapter 48 on page 763 for more on logs.
OK Click OK to save your changes back to the ZyWALL.
Cancel Click Cancel to exit this screen without saving your changes.
Table 131 Application Policy Edit (continued)
LABEL DESCRIPTION