Introducing the Sensor
This chapter introduces the sensor and provides information you should know before you install the
sensor. In this guide, the term sensor refers to all models unless noted otherwise. For a complete list of
supported sensors and their model numbers, see
following sections:
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How the Sensor Functions
This section describes how the sensor functions, and contains the following topics:
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Capturing Network Traffic
The sensor can operate in either promiscuous or inline mode.
deploy a combination of sensors operating in both inline (IPS) and promiscuous (IDS) modes to protect
your network.
OL-18504-01
How the Sensor Functions, page 1-1
Supported Sensors, page 1-17
IPS Appliances, page 1-18
IPS Modules, page 1-20
Time Sources and the Sensor, page 1-26
Installation Preparation, page 1-29
Site and Safety Guidelines, page 1-30
Cable Pinouts, page 1-33
Capturing Network Traffic, page 1-1
Your Network Topology, page 1-3
Correctly Deploying the Sensor, page 1-3
Tuning the IPS, page 1-3
Sensor Interfaces, page 1-4
Interface Modes, page 1-12
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0
C H A P T E R
Supported Sensors, page
1-17. This chapter contains the
Figure 1-1 on page 1-2
1
shows how you can
1-1