ZyXEL ISG50-PSTN User Guide - Page 42
User-Aware Access Control, Firewall, Anomaly Detection and Prevention ADP, Bandwidth Management
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Chapter 2 Features and Applications User-Aware Access Control Set up security policies that restrict access to sensitive information and shared resources based on the user who is trying to access it. Figure 16 Applications: User-Aware Access Control ISG Firewall The ISG50's firewall is a stateful inspection firewall. The ISG50 restricts access by screening data packets against defined access rules. It can also inspect sessions. For example, traffic from one zone is not allowed unless it is initiated by a computer in another zone first. Anomaly Detection and Prevention (ADP) ADP (Anomaly Detection and Prevention) can detect malicious or suspicious packets and respond instantaneously. It can detect: • Anomalies based on violations of protocol standards (RFCs - Requests for Comments) • Abnormal flows such as port scans. The ISG50's ADP protects against network-based intrusions. See Section 26.3.4 on page 415 and Section 26.3.5 on page 418 for more on the kinds of attacks that the ISG50 can protect against. You can also create your own custom ADP rules. Bandwidth Management Bandwidth management allows you to allocate network resources according to defined policies. The ISG50 applies its QoS and queueing to use this policy-based bandwidth allocation to help your network to better handle applications such as Internet access, e-mail, Voice-over-IP (VoIP), video conferencing and other business-critical applications. 42 ISG50 User's Guide
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