IDP 75, 250, 800, and 8200 Installation Guide

Table 2: Advantages and Disadvantages of Sniffer Mode (Passive)

Advantages

Disadvantages

 

 

„ Seamlessly replaces the current intrusion

„ Passively monitors with limited prevention

detection

only

„ Causes minimal network changes

„ Requires a hub or the Switched Port Analyser

„ Does not create an additional

(SPAN) port of a switch

 

point-of-failure gateway

 

„Monitors and logs suspicious network activity

Figure 2: Transparent Mode (Inline Active)

 

Internet

 

 

Firewall

 

Hub or

IP 2.2.2.1

Switch

 

 

 

 

 

 

IP 1.1.1.1

 

 

 

eth2

 

 

 

No ip address

 

IDP Sensor

Forwarding Interface

Management Server

 

 

 

 

 

 

IP 2.2.2.4

eth0 IP 2.2.2.7 MGT

eth3

 

 

Interface

No IP address

 

 

Forwarding Interface

 

Hub or

 

 

Switch

 

 

 

 

 

User Interface

 

 

 

IP 2.2.2.5

Server1

Server2

Server3

 

IP 1.1.1.2

IP 1.1.1.3

IP 1.1.1.4

 

GW 1.1.1.1

GW 1.1.1.1

GW 1.1.1.1

 

 

Protected Machines

 

 

Table 3 lists the advantages and the disadvantages of using the sensor in active transparent (inline) mode.

4„ IDP Configuration Basics

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Juniper Networks IDP 800, IDP250 manual Advantages and Disadvantages of Sniffer Mode Passive, Transparent Mode Inline Active

IDP75, IDP 800, IDP8200, IDP250 specifications

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