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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 453) to enable and disable application patrol. • Use the Common, Instant Messenger, Peer to Peer, VoIP, and Streaming (see Section 28.3 on page 454) 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 455) to edit the settings for an application. • Use the Application Policy Edit screen (see Section 28.3.2 on page 459) to edit a group of settings for an application. • Use the Other screens (see Section 28.4 on page 462) 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. ZyWALL USG 50 User’s Guide 443
