Chapter 28 Application Patrol

Table 132 Application Policy Edit (continued)

LABEL

DESCRIPTION

Priority

This field displays when the inbound or outbound bandwidth

 

management is not set to 0. 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

This field displays when the inbound or outbound bandwidth

Bandwidth

management is not set to 0. Enable maximize bandwidth usage to let

Usage

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 46 on page 723 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.

 

 

28.4 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.

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ZyWALL USG 50 User’s Guide