Version 3R2
Security Appliance User Guide
3-1
S
ECURITY
Z
ONES
AND
I
NTERFACES
3
This chapter describes how to configure zones, interfaces, modes of
operation and advanced interface settings for the security appliance. This
chapter includes the following topics:
•
Security Zones
•
Creating and Modifying Custom Security Zones
•
Configuring Interfaces and Subinterfaces
•
Configuring Interface Modes
•
Advanced Interface Settings
•
Authentication Using RADIUS
•
Alternate Connection Methods
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S E C U R I T Y Z O N E S
Security zones are a logical grouping of physical and logical interfaces on
an appliance. A security zone can consist of one physical interface or a
group of many physical and logical interfaces. Security policies
incorporate security zones to efficiently manage access control policies of
traffic that traverses zones and interfaces.
Figure 3-1
displays the interface eth0 configured in the trust zone with
two subinterfaces: VLAN 100 and 105. Two additional subinterfaces are
