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ZyWALL USG 50 User’s Guide
437
CHAPTER 28
Application Patrol
28.1 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 traffic priority over all other traffic going
through the ZyWALL. This maximizes SIP traffic throughput for improved VoIP call
sound quality.
28.1.1 What You Can Do in this Chapter
•Use the General summary screen (see Section 28.2 on page 447) to enable and
disable application patrol.
•Use the Common, Instant Messenger, Peer to Peer, VoIP, and Streaming
(see Section 28.3 on page 448) 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 28.3.1 on page 449) to
edit the settings for an application.
•Use the Application Policy Edit screen (see Section 28.3.2 on page 453) to
edit a group of settings for an application.
•Use the Other screens (see Section 28.4 on page 456) 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.