ZyXEL ZyWALL ATP700 User Guide - Page 516
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Chapter 24 Security Policy Table 196 OneSecurity Icons (continued) ONESECURITY ICON SCREEN Click this icon for more information on Application Patrol, which identifies traffic that passes through the Zyxel Device, so you can decide what to do with specific types of traffic. Traffic not recognized by application patrol is ignored. • Security Service > Application Patrol Click this icon for more information on Content Filter, which controls access to specific web sites or web content. • Security Service > Content Filter Click this icon for more information on IPSec and SSL VPN. Internet Protocol Security (IPSec) VPN connects IPSec routers or remote users using IPSec client software. SSL VPN allows users to use a web browser for secure remote user login without need of a VPN router or VPN client software. • VPN > IPSec VPN • VPN > SSL VPN Click this icon to download VPN client software. • VPN > IPSec VPN • VPN > SSL VPN Click this icon for more information on the Wireless AP Controller which sets how the Zyxel Device allows APs to connect to the wireless network. • Wireless > AP Management > Mgnt. AP List 24.3 What You Can Do in this Chapter • Use the Security Policy Control screens (Section 24.4 on page 518) to enable or disable policies, asymmetrical routes, and manage and configure policies. • Use the Anomaly Detection and Prevention (ADP) screens (Section 24.5 on page 524) to detect traffic with protocol anomalies and take appropriate action. • Use the Session Control screens (see Section 24.6 on page 533) to limit the number of concurrent NAT/ security policies traffic sessions a client can use. 24.3.1 What You Need to Know Stateful Inspection The Zyxel Device uses stateful inspection in its security policies. The Zyxel Device restricts access by screening data packets against defined access rules. It also inspects sessions. For example, traffic from one zone is not allowed unless it is initiated by a computer in another zone first. Zones A zone is a group of interfaces. Group the Zyxel Device's interfaces into different zones based on your needs. You can configure security policies for data passing between zones or even between interfaces. ZyWALL ATP Series User's Guide 516
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