ZyWALL / USG (ZLD) CLI Reference Guide
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Secure Policy
This chapter introduces the ZyWALL / USG’s secure policies and shows you how to configure them.
Note: In the guide Secure Policy commands may also be referred to as Firewall in general
descriptions.
25.1 Secure Policy Overview
A secure policy is a template of security settings that can be applied to specific traffic at specific
times. The policy can be applied:
• to a specific direction of travel of packets (from / to)
• to a specific source and destination address objects
• to a specific type of traffic (services)
• to a specific user or group of users
• at a specific schedule
The policy can be configured:
• to allow or deny traffic that matches the criteria above
• send a log or alert for traffic that matches the criteria above
• to apply the actions configured in the UTM profiles (application patrol, content filter, IDP, anti-
virus, anti-spam) to traffic that matches the criteria above
Note: Secure policies can be applied to both IPv4 and IPv6 traffic
The secure policies can also limit the number of user sessions.
The following example shows the ZyWALL / USG’s default security policies behavior for a specific
direction of travel of packets. WAN to LAN traffic and how stateful inspection works. A LAN user can
initiate a Telnet session from within the LAN zone and the ZyWALL / USG allows the response.
However, the ZyWALL / USG blocks incoming Telnet traffic initiated from the WAN zone and
destined for the LAN zone.
Figure 18
Default Directional Policy Example
Summary of Contents for ZyWALL USG Series
Page 19: ...19 PART I Introduction ...
Page 20: ...20 ...
Page 38: ...Chapter 2 User and Privilege Modes ZyWALL USG ZLD CLI Reference Guide 38 ...
Page 39: ...39 PART II Reference ...
Page 40: ...40 ...
Page 48: ...Chapter 4 Status ZyWALL USG ZLD CLI Reference Guide 48 ...
Page 52: ...Chapter 5 Registration ZyWALL USG ZLD CLI Reference Guide 52 ...
Page 128: ...Chapter 15 Route ZyWALL USG ZLD CLI Reference Guide 128 ...
Page 136: ...Chapter 17 Zones ZyWALL USG ZLD CLI Reference Guide 136 ...
Page 140: ...Chapter 18 DDNS ZyWALL USG ZLD CLI Reference Guide 140 ...
Page 148: ...Chapter 20 HTTP Redirect ZyWALL USG ZLD CLI Reference Guide 148 ...
Page 152: ...Chapter 21 ALG ZyWALL USG ZLD CLI Reference Guide 152 ...
Page 156: ...Chapter 22 UPnP ZyWALL USG ZLD CLI Reference Guide 156 ...
Page 159: ...Chapter 23 IP MAC Binding ZyWALL USG ZLD CLI Reference Guide 159 ...
Page 178: ...Chapter 25 Secure Policy ZyWALL USG ZLD CLI Reference Guide 178 ...
Page 218: ...Chapter 32 Application Patrol ZyWALL USG ZLD CLI Reference Guide 218 ...
Page 236: ...Chapter 34 IDP Commands ZyWALL USG ZLD CLI Reference Guide 236 ...
Page 246: ...Chapter 35 Content Filtering ZyWALL USG ZLD CLI Reference Guide 246 ...
Page 256: ...Chapter 36 Anti Spam ZyWALL USG ZLD CLI Reference Guide 256 ...
Page 262: ...Chapter 37 SSL Inspection ZyWALL USG ZLD CLI Reference Guide 262 ...
Page 268: ...Chapter 38 Device HA ZyWALL USG ZLD CLI Reference Guide 268 ...
Page 284: ...Chapter 41 Addresses ZyWALL USG ZLD CLI Reference Guide 284 ...
Page 288: ...Chapter 42 Services ZyWALL USG ZLD CLI Reference Guide 288 ...
Page 302: ...Chapter 46 Authentication Server ZyWALL USG ZLD CLI Reference Guide 302 ...
Page 338: ...Chapter 52 System Remote Management ZyWALL USG ZLD CLI Reference Guide 338 ...
Page 358: ...Chapter 53 File Manager ZyWALL USG ZLD CLI Reference Guide 358 ...
Page 372: ...Chapter 56 Session Timeout ZyWALL USG ZLD CLI Reference Guide 372 ...
Page 374: ...Chapter 57 Diagnostics ZyWALL USG ZLD CLI Reference Guide 374 ...
Page 384: ...Chapter 59 Maintenance Tools ZyWALL USG ZLD CLI Reference Guide 384 ...
Page 426: ...List of Commands Alphabetical ZyWALL USG ZLD CLI Reference Guide 426 ...