Network Page 63
Network > Zones
A Zone is a logical grouping of one or more interfaces designed to make management, such as the
definition and application of Access Rules, a simpler and more intuitive process than following strict
physical interface scheme. There are four fixed Zone types: Trusted, Untrusted, Public, and Encrypted.
Trusted is associated with LAN Zones. These fixed Zone types cannot be modified or deleted. A Zone
instance is created from a Zone type and named accordingly, i.e Sales, Finance, etc.
Only the number of interfaces limits the number of Zone instances for Trusted and Untrusted Zone types.
The Untrusted Zone type (i.e. the WAN) is restricted to two Zone instances. The Encrypted Zone type is
a special system Zone comprising all VPN traffic and doesn’t have any associated interfaces.
Trusted and Public Zone types offer an option, Interface Trust, to automate the creation of Access Rules
to allow traffic to flow between the Interfaces of a Zone instance. For example, if the LAN Zone has
interfaces X0, X3, and X5 assigned to it, checking Allow Interface Trust on the LAN Zone creates the
necessary Access Rules to allow hosts on these Interfaces to communicate with each other.
Enforce Content Filtering Service - Select this option to enforce content filtering on multiple interfaces
in the same Trusted or Public Zones.
Enforce AV Service - Select this option to enforce anti-virus protection on multiple interfaces in the same
Trusted or Public Zones.
Summary of Contents for SonicOS Enhanced 2.2
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