Chapter 11 Zones

Intra-zone Traffic

Intra-zone traffic is traffic between interfaces or VPN tunnels in the same zone. For example, in Figure 121 on page 211, traffic between VLAN 2 and the Ethernet is intra-zone traffic.

In each zone, you can either allow or prohibit all intra-zone traffic. For example, in Figure 121 on page 211, you might allow intra-zone traffic in the LAN zone but prohibit it in the WAN zone.

You can set up firewall rules to control intra-zone traffic (for example, DMZ-to-DMZ), but many other types of zone-based security and policy settings do not affect intra-zone traffic.

Inter-zone Traffic

Inter-zone traffic is traffic between interfaces or VPN tunnels in different zones. For example, in Figure 121 on page 211, traffic between VLAN 1 and the Internet is inter-zone traffic. This is the normal case when zone-based security and policy settings apply.

Extra-zone Traffic

Extra-zone traffic is traffic to or from any interface or VPN tunnel that is not assigned to a zone. For example, in Figure 121 on page 211, traffic to or from computer C is extra-zone traffic.

Some zone-based security and policy settings may apply to extra-zone traffic, especially if you can set the zone attribute in them to Any or All. See the specific feature for more information.

11.2The Zone Screen

The Zone screen provides a summary of all zones. In addition, this screen allows you to add, edit, and remove zones. To access this screen, click Configuration > Network > Zone.

Figure 122 Configuration > Network > Zone

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