Juniper-networks IDP 800 Manuale Utente Scaricare il pdf (Pagina 18)

IDP 75, 250, 800, and 8200 Installation Guide

4  IDP Configuration Basics

Figure 2: Transparent Mode (Inline Active)

Table 3 lists the advantages and the disadvantages of using the sensor in active

transparent (inline) mode.

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

Advantages Disadvantages

 Seamlessly replaces the current intrusion

detection

 Causes minimal network changes

 Does not create an additional

point-of-failure gateway

 Monitors and logs suspicious network

activity

 Passively monitors with limited prevention

only

 Requires a hub or the Switched Port Analyser

(SPAN) port of a switch

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

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 67 68

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Juniper-networks IDP 800 Manuale Utente Pagina 18

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