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Advanced Deployment Modes 45
Chapter 8: Advanced Configuration
Router Mode
Figure 22 shows a sensor that is configured in bridge mode. Table 15 lists the
advantages and disadvantages of bridge mode.
Figure 22: Router Mode
Table 15: Advantages and Disadvantages of Router Mode
Advantages Disadvantages
Reliably responds to and prevents attacks
Connects IP networks with different
address spaces
Affects Layer 3 IP networks (routing tables)
Interfaces cannot be used in stealth mode.
The sensor itself can be the target of attacks.
Management
Server
IP 2.2.2.4
User Interface
IP 2.2.2.5
Protected Machines
Hub or
Switch
Firewall
eth2
IP 192.168.0.1
Forwarding Interface
Server1
IP 1.1.1.2
GW 1.1.1.1
Server2
IP 1.1.1.3
GW 1.1.1.1
Server3
IP 1.1.1.4
GW 1.1.1.1
IP 2.2.2.1
IP 192.168.0.2
IDP Sensor
Hub or
Switch
eth3
IP 1.1.1.1
Forwarding Interface
eth0 IP 2.2.2.7
MGT Interface
Internet