ZyXEL Communications ZyWall USG 50-H Series, User Manual

Page: 412 / 704

Chapter 26 Application Patrol/BWM
ZyWALL USG 50-H User’s Guide
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26.4 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.
Click AppPatrol/BWM > Other to open the Other ( applications) screen.
Figure 350 AppPatrol/BWM > Other
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 38 on
page 563 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 142 Application Policy Edit (continued)
LABEL DESCRIPTION