Router Mode; Figure 22: Router Mode; Table 15: Advantages And Disadvantages Of Router Mode - Juniper IDP 800 Installation Manual

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