ZyXEL Communications 200 Series User Manual

ZyWALL USG 100/200 Series User’s Guide

Application patrol provides a convenient way to manage the use of various applications on the 
network. It manages general protocols (for example, http and ftp) and instant messenger (IM), 
peer-to-peer (P2P), Voice over IP (VoIP), and streaming (RSTP) applications. You can even 
control the use of a particular application’s individual features (like text messaging, voice, 
video conferencing, and file transfers). Application patrol also has powerful bandwidth 
management including traffic prioritization to enhance the performance of delay-sensitive 
applications like voice and video.

There is also an option that gives SIP priority over all other traffic going through the 
ZyWALL. This maximizes SIP traffic throughput for improved VoIP call sound quality.

• Use the General summary screen (see 

) to enable and disable 

application patrol. 

• Use the Common, Instant Messenger, Peer to Peer, VoIP, and Streaming (see 

) screens to look at the applications the ZyWALL can recognize, and 

review the settings for each one. You can also enable and disable the rules for each 
application and specify the default and custom policies for each application.

• Use the Application Patrol Edit screen (see 

) to edit the 

settings for an application. 

• Use the Application Policy Edit screen (see 

) to edit a group 

of settings for an application. 

• Use the Other screens (see 

) to control what the ZyWALL does 

when it does not recognize the application, and it identifies the conditions that refine this. 
It also lets you open the Other Configuration Add/Edit screen to create new conditions 
or edit existing ones.

• Use the Statistics screen (see 

) to see a bandwidth usage graph 

and statistics for each protocol.