ZyXEL Communications ISG50 User Manual

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ISG50 User’s Guide
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Zones
16.1  Zones Overview
Set up zones to configure network security and network policies in the ISG50. A zone is a group of 
interfaces and/or VPN tunnels. The ISG50 uses zones instead of interfaces in many security and 
policy settings, such as firewall rules and remote management.
Zones cannot overlap. Each Ethernet interface, VLAN interface, bridge interface, PPPoE/PPTP 
interface and VPN tunnel can be assigned to at most one zone. Virtual interfaces are automatically 
assigned to the same zone as the interface on which they run.
Figure 207   
Example: Zones
16.1.1  What You Can Do in this Chapter
Use the Zone screens (see 
) to manage the ISG50’s zones. 
16.1.2  What You Need to Know
Effects of Zones on Different Types of Traffic
Zones effectively divide traffic into three types--intra-zone traffic, inter-zone traffic, and extra-zone 
traffic--which are affected differently by zone-based security and policy settings.
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