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ZyWALL USG 100/200 Series User’s Guide
443
CHAPTER 27
Application Patrol
27.1 Overview
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.
27.1.1 What You Can Do in the Application Patrol Screens
• Use the General summary screen (see Section 27.2 on page 451) to enable and disable
application patrol.
• Use the Common, Instant Messenger, Peer to Peer, VoIP, and Streaming (see Section
27.3 on page 453) 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 Section 27.3.1 on page 454) to edit the
settings for an application.
• Use the Application Policy Edit screen (see Section 27.3.2 on page 456) to edit a group
of settings for an application.
• Use the Other screens (see Section 27.4 on page 458) 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 Section 27.5 on page 462) to see a bandwidth usage graph
and statistics for each protocol.