Juniper IDP 250, Installation Manual

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IDP 75, 250, 800, and 8200 Installation Guide
44 „
Advanced Deployment Modes
Figure 21: Bridge Mode
Table 14: Advantages and Disadvantages of Bridge Mode
Advantages Disadvantages
„
Reliably responds to and prevents attacks
„
Simple, transparent deployment
„
Allows Layer 2 broadcasts
„
No changes to routing tables or network
equipment
„
Cannot connect IP networks with different
address spaces
Management Server
IP 2.2.2.4
User Interface
IP 2.2.2.5
Protected Machines
Hub or
Switch
Firewall
eth2
No ip address
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 1.1.1.1
IDP Sensor
Hub or
Switch
eth3
No IP address
Forwarding Interface
eth0 IP 2.2.2.7 MGT
Interface
Internet