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IntruShield Sensor 4000 Product Guide
revision 7.0
McAfee® IntruShield® IPS
IntruShield Sensor 4000
version 4.1
McAfee®
Network Protection
Industry-leading intrusion prevention solutions
Page 2
COPYRIGHT
Copyright ® 2001 - 2008 McAfee, Inc. All Rights Reserved.
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unregistered trademarks herein are the sole property of their respective owners.
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License Attributions
This product includes or may include:
* Software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/). * Cryptographic software written by Eric A. Young and software
written by Tim J. Hudson. * Some software programs that are licensed (or sublicensed) to the user under the GNU General Public License (GPL) or other similar Free
Software licenses which, among other rights, permit the user to copy, modify and redistribute certain programs, or portions thereof, and have access to the source code.
The GPL requires that for any software covered under the GPL, which is distributed to someone in an executable binary format, that the source code also be made
available to those users. For any such software covered under the GPL, the source code is made available on this CD. If any Free Software licenses require that McAfee
provide rights to use, copy or modify a software program that are broader than the rig hts granted in this agreement, then such rights shall take precedence over the rights
and restrictions herein. * Software originally written by Henry Spencer, Copyright 1992, 1993, 1994, 1997 Henry Spencer. * Software originally written by Robert Nordier,
Copyright (C) 1996-7 Robert Nordier. * Software written by Douglas W. Sauder. * Software developed by the Apache Software Foundation (http://www.apache.org/). A
copy of the license agreement for this software can be found at www.apache.org/licenses/LICENSE-2.0.txt. * International Components for Unicode ("ICU") Copyright (C)
1995-2002 International Business Machines Corporation and others. * Software developed by CrystalClear Software, Inc., Copyright (C) 2000 CrystalClear Software, Inc. *
FEAD(R) Optimizer(R) technology, Copyright Netopsystems AG, Berlin, Germany. * Outside In(R) Viewer Technology (C) 1992-2001 Stellent Chicago, Inc. and/or Outside
In(R) HTML Export, (C) 2001 Stellent Chicago, Inc. * Software copyrighted by Thai Open Source Software Center Ltd. and Clark Cooper, (C) 1998, 1999, 2000. * Software
copyrighted by Expat maintainers. * Software copyrighted by The Regents of the University of California, (C) 1996, 1989, 1998-2000. * Software copyrighted by Gunnar
Ritter. * Software copyrighted by Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, California 95054, U.S.A., (C) 2003. * Software copyrighted by Gisle Aas. (C)
1995-2003. * Software copyrighted by Michael A. Chase, (C) 1999-2000. * Software copyrighted by Neil Winton, (C) 1995-1996. * Software copyrighted by RSA Data
Security, Inc., (C) 1990-1992. * Software copyrighted by Sean M. Burke, (C) 1999, 2000. * Software copyrighted by Martijn Koster, (C) 1995. * Software copyrighted by
Brad Appleton, (C) 1996-1999. * Software copyrighted by Michael G. Schwern, (C) 2001. * Software copyrighted by Graham Barr, (C) 1998. * Software copyrighted by
Larry Wall and Clark Cooper, (C) 1998-2000. * Software copyrighted by Frodo Looijaard, (C) 1997. * Software copyrighted by the Python Software Foundation, Copyright
(C) 2001, 2002, 2003. A copy of the license agreement for this software can be foun d at www.python.org. * Software copyrighted by Beman Dawes, (C) 1994-1999, 2002.
* Software written by Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek (C) 1997-2000 University of Notre Dame. * Software copyrighted by Simone Bordet & Marco
Cravero, (C) 2002. * Software copyrighted by Stephen Purcell, (C) 2001. * Software developed by the Indiana University Extreme! Lab (http://www.extreme.indiana.edu/).
* Software copyrighted by International Business Machines Corporation and others, (C) 1995-2003. * Software developed by the University of California, Berkeley and its
contributors. * Software developed by Ralf S. Engelschall <rse@engelschall.com> for use in the mod_ssl project (http:// www.modssl.org/). * Software copyrighted by
Kevlin Henney, (C) 2000-2002. * Software copyrighted by Peter Dimov and Multi Media Ltd. (C) 2001, 2002. * Software copyrighted by David Abrahams, (C) 2001, 2002.
http://www.boost.org/libs/bind/bind.html for documentation. * Software copyrighted by Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock, (C) 2000. *
See
Software copyrighted by Boost.org, (C) 1999-2002. * Software copyrighted by Nicolai M. Josuttis, (C) 1999. * Software copyrighted by Jeremy Siek, (C) 1999-2001. *
Software copyrighted by Daryle Walker, (C) 2001. * Software copyrighted by Chuck Allison and Jeremy Siek, (C) 2001, 2002. * Software copyrighted by Samuel Krempp,
(C) 2001. See http://www.boost.org for updates, documentation, and revision history. * Software copyrighted by Doug Gregor (gregod@cs.rpi.edu), (C) 2001, 2002. *
Software copyrighted by Cadenza New Zealand Ltd., (C) 2000. * Software copyrighted by Jens Maurer, (C) 2000, 2001. * Software copyrighted by Jaakko Järvi
(jaakko.jarvi@cs.utu.fi), (C) 1999, 2000. * Software copyrighted by Ronald Garcia, (C) 2002. * Software copyrighted by David Abrahams, Jeremy Siek, and Daryle Walker,
(C) 1999-2001. * Software copyrighted by Stephen Cleary (shammah@voyager.net), (C) 2000. * Software copyrighted by Housemarque Oy
<
http://www.housemarque.com>, (C) 2001. * Software copyrighted by Paul Moore, (C) 1999. * Software copyrighted by Dr. John Maddock, (C) 1998-2002. * Software
copyrighted by Greg Colvin and Beman Dawes, (C) 1998, 1999. * Software copyrighted by Peter Dimov, (C) 2001, 2002. * Software copyrighted by Jeremy Siek and John
R. Bandela, (C) 2001. * Software copyrighted by Joerg Walter and Mathias Koch, (C) 2000-2002. * Software copyrighted by Carnegie Mellon University (C) 1989, 1991,
1992. * Software copyrighted by Cambridge Broadband Ltd., (C) 2001-2003. * Software copyrighted by Sparta, Inc., (C) 2003-2004. * Software copyrighted by Cisco, Inc
and Information Network Center of Beijing University of Posts and Telecommunications, (C) 2004. * Software copyrighted by Simon Josefsson, (C) 2003. * Software
copyrighted by Thomas Jacob, (C) 2003-2004. * Software copyrighted by Advanced Software Engineering Limited, (C) 2004. * Software copyrighted by Todd C. Miller, (C)
1998. * Software copyrighted by The Regents of the University of California, (C) 19 90, 1993, with code derived from software contributed to Berkeley by Chris Torek.
Issued DECEMBER 2008 / IntruShield Sensor 4000 Product Guide
700-1549-00/ 7.0 - English
Page 3
Contents
Preface ...................................................................................... v
Introducing McAfee IntruShield IPS ..............................................................................................v
About this guide ............................................................................................................................ v
Contents of this guide............................................................................................................ v
Audience .......................................................................................................................................vi
Conventions used in this guide .....................................................................................................vi
Related Documentation................................................................................................................ vii
Contacting Technical Support...................................................................................................... viii
Chapter 1 An introduction to IntruShield sensors .................... 1
What is an IntruShield sensor?...................................................................................................... 1
Sensor functionality....................................................................................................................... 1
Sensor platforms ........................................................................................................................... 1
The IntruShield 4000 sensor ......................................................................................................... 2
Ports on the I-4000.................................................................................................................2
Front panel LEDs on the I-4000 .............................................................................................3
Chapter 2 Before you install ..................................................... 6
I-4000 sensor specifications.......................................................................................................... 6
Sensor capacity for I-4000 sensor ................................................................................................. 7
Network topology considerations.................................................................................................. 8
Safety measures ........................................................................................................................... 9
Working with Fiber-optic ports .................................................................................................... 10
Usage restrictions ....................................................................................................................... 10
Unpacking the sensor.................................................................................................................. 10
Contents of sensor box ........................................................................................................10
Chapter 3 Setting up the I-4000 sensor prior to configuration12
Setup overview ........................................................................................................................... 12
Positioning the I-4000.................................................................................................................. 12
Installing the ears on the chassis ......................................................................................... 12
Mounting the I-4000 sensor in a rack...................................................................................13
Installing the I-4000 redundant power supply ............................................................................. 14
Installing a power supply......................................................................................................14
Removing a power supply....................................................................................................15
Installing GBICs ........................................................................................................................... 16
Installing a GBIC...................................................................................................................16
Removing a GBIC.................................................................................................................17
Cabling the sensor....................................................................................................................... 17
Powering on the I-4000 ............................................................................................................... 17
Powering off the sensor.......................................................................................................17
Chapter 4 Attaching cables to the I-4000 Sensor ................... 18
Cabling the Console port ............................................................................................................. 18
Cabling the Auxiliary port............................................................................................................. 18
Cabling the Response ports ........................................................................................................ 19
Cabling the Management port.....................................................................................................19
Cabling the I-4000 Monitoring ports.....................................................................................20
Default Monitoring port speed settings for I-4000 ...............................................................21
Cable types for routers, switches, hubs, and PCs ...............................................................21
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Using fail-open hardware .....................................................................................................21
Cabling for in-line mode............................................................................................................... 22
Cabling for Tap mode .................................................................................................................. 22
Cabling I-4000 GBIC ports in external Tap mode .................................................................22
Cabling for SPAN mode............................................................................................................... 23
Cabling the I-4000 sensor to monitor in SPAN or hub mode ...............................................23
Cabling the failover interconnection ports............................................................................23
Index ........................................................................................ 26
iv
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Preface
This preface provides a brief introduction to McAfee IntruShield, discusses the
information in this document, and explains how this document is organized. It also
provides information such as the supporting documents for this guide and how to
Introducing McAfee IntruShield IPS
contact McAfee Technical Support.
McAfee IntruShield delivers the most comprehensive, accurate, and scalable
network IPS solution for mission-critical enterprise, carrier, and service provider
networks, while providing unmatched protection against spyware and known, zeroday, and encrypted attacks.
IntruShield combines real-time detection and prevention to provide the most
comprehensive and effective network IPS in the market.
What do you want to do?
• Learn more about McAfee IntruShield components.
• Learn how to get started.
• Learn about the Home page and interaction with the Manager interface.
About this guide
This guide provides all the information that you would require about the I-4000
sensor. It uses real-life pictures of sensors and easy-to-understand steps to help right
from unpacking the sensor to deploying the sensor in your production environment
as per your requirements.
Contents of this guide
This guide is organized as described below:
•
•
•
Chapter 1: An Introduction to IntruShield Sensors (on page 1) describes the
features and port configurations of the I-4000 sensor, including descriptions
of the front panel LEDs.
Chapter 2: Before You Install (on page 6) contains system specifications,
and the safety and usage requirements for the sensors.
Chapter 3: Setting up an I-4000 Sensor (on page 12) describes the
preliminary steps you must follow prior to configuring the sensor.
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McAfee® IntruShield® IPS 4.1 Preface
IntruShield Sensor 4000 Product Guide
Audience
• Chapter 4: Attaching Cables to the I-4000 Sensor (on page 18) describes
how to attach monitoring and response cables to the sensor, and how to
cable the sensor to operate in various operating modes.
Audience
This guide is intended to be used by network technicians and maintenance personnel
who are responsible for installing, configuring, and maintaining this IntruShield
sensor, but not necessarily familiar with IPS-related tasks, the relationship between
tasks, or the commands necessary to perform particular tasks.
Conventions used in this guide
This document uses the following typographical conventions:
Convention Example
Terms that identify fields, buttons,
tabs, options, selections, and
commands on the User Interface
(UI) are shown in
Arial Narrow bold
font.
Menu or action group selections
are indicated using a right angle
bracket.
Procedures are presented as a
series of numbered steps.
Names of keys on the keyboard
are denoted using UPPER CASE.
Text such as syntax, keywords,
and values that you must type
exactly are denoted using
Courier New
font.
Variable information that you must
type based on your specific
situation or environment is shown
italics.
in
Parameters that you must supply
are shown enclosed in angle
brackets.
The Service field on the Properties tab specifies the
name of the requested service.
Select My Company > Admin Domain > View Details.
1. On the Configuration tab, click Backup.
Press ENTER.
Type: setup and then press ENTER.
sensor-IP-address and then press ENTER.
Type:
set sensor ip <A.B.C.D>
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McAfee® IntruShield® IPS 4.1
IntruShield Sensor 4000 Product Guide
Convention Example
Related Documentation
Information that you must read
before beginning a procedure or
that alerts you to negative
consequences of certain actions,
such as loss of data is denoted
using this notation.
Information that you must read to
prevent injury, accidents from
contact with electricity, or other
serious consequences is denoted
using this notation.
Notes that provide related, but
non-critical, information are
denoted using this notation.
Related Documentation
The following documents and on-line help are companions to this guide. Refer to
IntruShield IPS Quick Reference Card
• IntruShield Manager Installation Guide
• IntruShield Getting Started Guide
• IntruShield 3.1 to 4.1 Upgrade Guide
• IntruShield Quick Tour
• IntruShield Planning & Deployment Guide
• IntruShield Sensor 1200 Product Guide
• IntruShield Sensor 1400 Product Guide
• IntruShield Sensor 2600 Product Guide
• IntruShield Sensor 2700 Product Guide
• IntruShield Sensor 3000 Product Guide
• IntruShield Sensor 4010 Product Guide
• IntruShield Configuration Basics Guide
• Administrative Domain Configuration Guide
• Manager Server Configuration Guide
• Policies Configuration Guide
• Sensor Configuration Guide—using CLI
• Sensor Configuration Guide—using ISM
• Sensor Configuration Guide—using ISM Wizard
• Alerts & System Health Monitoring Guide
• Reports Guide
• IntruShield User-Defined Signatures Developer's Guide
• IntruShield Troubleshooting Guide
Caution:
Warning:
Note:
for more information on these guides.
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McAfee® IntruShield® IPS 4.1 Preface
IntruShield Sensor 4000 Product Guide
Contacting Technical Support
• IntruShield Attack Description Guide
• IntruShield Special Topics Guide
• Database Tuning
• Best Practices
• Denial-of-Service
• Sensor High Availability
• Custom Roles Creation
• In-line Sensor Deployment
• Virtualization
• IntruShield Gigabit Optical Fail-Open Bypass Kit Guide
• IntruShield Gigabit Copper Fail-Open Bypass Kit Guide
Contacting Technical Support
If you have any questions, contact McAfee for assistance:
Online
Contact McAfee Technical Support http://mysupport.mcafee.com.
Registered customers can obtain up-to-date documentation, technical bulletins, and
quick tips on McAfee's 24x7 comprehensive KnowledgeBase. In addition, customers
can also resolve technical issues with the online case submit, software downloads,
and signature updates.
Phone
Technical Support is available 7:00 A.M. to 5:00 P.M. PST Monday-Friday. Extended
24x7 Technical Support is available for customers with Gold or Platinum service
contracts. Global phone contact numbers can be found at McAfee
Information
http://www.mcafee.com/us/about/contact/index.html page.
Note: McAfee requires that you provide your GRANT ID and the serial number of
your system when opening a ticket with Technical Support. You will be provided
with a user name and password for the online case submission.
Contact
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C HAPTER 1
An introduction to IntruShield sensors
This section describes IntruShield sensors at a high-level and also describes the I-
What is an IntruShield sensor?
4000 in detail.
IntruShield sensors are high-performance, scalable, and flexible content processing
appliances built for the accurate detection and prevention of intrusions, misuse, and
distributed denial of service (DDoS) attacks.
IntruShield sensors are specifically designed to handle traffic at wire speed,
efficiently inspect and detect intrusions with a high degree of accuracy, and flexible
enough to adapt to the security needs of any enterprise environment. When
deployed at key Network Access Points, an IntruShield sensor provides real-time
traffic monitoring to detect malicious activity, and respond to the malicious activity as
configured by the administrator.
Once deployed and once communication is established, sensors are configured and
managed via the central IntruShield Security Manager (ISM) server.
The process of configuring a sensor and establishing communication with the ISM is
described in later chapters of this guide. The ISM server is described in detail in
IntruShield Security Manager, Getting Started Guide.
Sensor functionality
The primary function of an IntruShield sensor is to analyze traffic on selected network
segments and to respond when an attack is detected. The sensor examines the
header and data portion of every network packet, looking for patterns and behavior in
the network traffic that indicate malicious activity. The sensor examines packets
according to user-configured policies, or rule sets, which determine what attacks to
watch for, and how to respond with countermeasures if an attack is detected.
If an attack is detected, a sensor responds according to its configured policy. Sensors
can perform many types of attack responses, including generating alerts and packet
logs, resetting TCP connections, “scrubbing” malicious packets, and even blocking
attack packets entirely before they reach the intended target.
Sensor platforms
McAfee offers multiple sensor platforms providing different bandwidth and
deployment strategies.
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McAfee® IntruShield® IPS 4.1 An introduction to IntruShield sensors
IntruShield Sensor 4000 Product Guide The IntruShield 4000 sensor
This document describes the I-4000 sensor.
The IntruShield 4000 sensor
The IntruShield 4000 sensor (the I-4000), designed for high-bandwidth links, is
equipped to support two full-duplex Ethernet segments, or four SPAN ports
transmitting no more than 2 Gbps for up to 2 Gbps of aggregated traffic.
Ports on the I-4000
The I-4000 is a 2RU unit, and is equipped with the following ports:
Figure 1: The I-4000 sensor
Name Description
1 Management port
2 Console port
3 Auxiliary port
4 GBIC monitoring ports or Failover
interconnection ports (2A and 2B only).
5 Response ports
6 Response ports(not used)
7 External Compact Flash port
8 Power Supply A
9 Power Supply B
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McAfee® IntruShield® IPS 4.1 An introduction to IntruShield sensors
IntruShield Sensor 4000 Product Guide The IntruShield 4000 sensor
1 One 10/100 Management port, which is used for communication with the ISM server.
This port has an assigned IP address.
One RS-232C Console port, which is used to set up and configure the sensor.
2
3
One RS-232C Auxiliary port, which may be used to dial in remotely to set up and
configure the sensor.
4
Four monitoring GBIC ports, which enable you to monitor four SPAN ports, two full-
duplex tapped segments, two segments in-line, or a combination (that is, one
full-duplex segment, two SPAN ports). The monitoring interfaces of the I-4000
work in stealth mode, meaning they have no IP address and are not visible on
the monitored segment. If you choose to run in failover mode, ports 2A and 2B
are used to interconnect with a standby sensor.
Two response ports, which, when you are operating in SPAN mode, enable you to
5
inject response packets back through a switch or router.
One External Compact Flash port. This port is used for two purposes. It is used to
6
control optional fail-open hardware as described in the
Bypass Kit Guide
. It is also used in troubleshooting situations where the sensor’s
Gigabit Optical Fail-Open
internal flash is corrupted and you must reboot the sensor via the external
compact flash. For more information, see the on-line KnowledgeBase at
Support Site.
7
Power Supply A (included). Power supply A is included with each sensor. The supply
https://mysupport.mcafee.com
Mcafee
uses a standard IEC port (IEC320-C13). The supply uses a standard IEC port
(IEC320-C13). McAfee provides a standard, 2m NEMA 5-15P (US) power cable
(3 wire). International customers must procure a country-appropriate power
cable.
Power Supply B (optional, purchased separately). Power supply B is a hot-swappable,
8
redundant power supply. This power supply also uses a standard IEC320-C13
port, and you can use the McAfee-provided cable or acquire one that meets your
specific needs.
The I-4000 does not have internal taps; it must be used with a 3rd party external
tap to run in tapped mode.
Front panel LEDs on the I-4000
The front panel LEDs provide status information for the health of the sensor and the
activity on its ports. The following table describes the front panel LEDs.
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McAfee® IntruShield® IPS 4.1 An introduction to IntruShield sensors
IntruShield Sensor 4000 Product Guide The IntruShield 4000 sensor
LED Status Description
Power A Green
Amber
Power B Green
Amber
Power Supply A is functioning.
Power Supply A is not functioning.
Power Supply B is functioning.
Power Supply B is not functioning.
Note: If a power supply is not present, both green and amber LEDs are off.
Management Port
Speed
Management Port
Link
Sys Green
Fan OK Green
Fan 1 Off
Fan 2 Off
Amber
Off
Green
Off
Amber/blinking
Off
Amber
Amber
The port speed is 100 Mbps
The port speed is 10 Mbps
The link is connected.
The link is disconnected.
Sensor is operating.
Sensor is booting.
All three fans are operating.
Indicates one or more fans have failed.
Fan 1 is operating.
Fan 1 is not operating.
Fan 2 is operating.
Fan 2 is not operating.
Fan 3 Off
Amber
Temp Green
Amber
Fan 3 is operating.
Fan 3 is not operating.
Inlet air temperature measured inside chassis
is normal. (Chassis temperature OK.)
Inlet air temperature measured inside chassis
is too hot. (Chassis temperature too hot.)
Flash Green
Off
Activity on external compact flash. (For
example, the Fail-Open Controller has been
inserted)
No activity on external compact flash.
Gigabit Ports Act Amber
Off
Gigabit Ports Link Green
Off
Response Port
Speed
Amber
Off
Data transferring.
No data transferring.
The link is connected.
The link is disconnected.
The port speed is 100 Mbps.
The port speed is 10 Mbps.
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McAfee® IntruShield® IPS 4.1 An introduction to IntruShield sensors
IntruShield Sensor 4000 Product Guide The IntruShield 4000 sensor
LED Status Description
Response Port Link Green
Off
The link is connected.
The link is disconnected.
5
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C HAPTER 2
Before you install
Sensor specifications, safety measures, unpacking a sensor
This chapter describes best practices for deployment of IntruShield sensors on your
network. Topics include system requirements, site planning, safety considerations
for handling the sensor, and usage restrictions that apply to the sensor.
I-4000 sensor specifications
The following table lists the specifications of the I-4000 sensor.
Sensor
Specifications
Dimensions
Without mounting ears/cable management:
• width: 17.44 in. (43.30 cm.)
• height: 3.44 in. (8.74 cm.)
• depth: 23.00 in. (58.42 cm.)
With mounting ears/cable management:
• width: 18.94 in. (48.11 cm.)
• height: 3.44 in. (8.74 cm.)
• depth: 24.00 in. (60.96 cm.)
Dimensions do not include cables or power
cords.
Description
Weight
Voltage Range
Frequency
Vibration, operating
Vibration, nonoperating
Power requirements
Ambient
Temperature Range
(Non-condensing)
38 lb. (17.25 kg.)
100-240 VAC
50/60 Hz
5 to 200 Hz, 0.5 g (1 oct/min)
5 to 200 Hz, 1g (1 oct/min)
200 to 500 Hz, 2g (1 oct/min)
350 W
Operating
0C(32F) to 40C(104F)
Non-operating
-40C(-40F) to 70C(158F)
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McAfee® IntruShield® IPS 4.1 Before you install
IntruShield Sensor 4000 Product Guide Sensor capacity for I-4000 sensor
Sensor Description
Specifications
Relative Humidity
(Non-condensing)
Operating
10%-90% non-condensing
Non-operating
5% to 95% non-condensing
System Heat
1194.3 BTU/hr
Dissipation
Airflow
Altitude
Throughput
200 lfm (1 m/s)
Sea level to 10,000 ft (3050 m)
2 Gbps
Cabling Specifications:
Note the following cabling specifications for the sensor:
• Category 5 Enhanced (Cat 5e) cable is required for transmission speeds up
to 1 Gigabit per second (Gigabit Ethernet).
• For Ethernet networks running at 10 or 100 Mbps, Category 5 (Cat 5) OR
Cat 5e cable can be used.
Note: Throughout this guide, cabling specifications will be mentioned as Cat 5/Cat
5e.
Sensor capacity for I-4000 sensor
The following table lists the sensor limitations by category:
Maximum Type I-4000
Concurrent connections 1,000,000
Connections established per sec. 25,000
Concurrent SSL Flows (2.1.x and later) 100,000
Number of SSL keys that can be stored on
the sensor
Virtual Interfaces (VIDS) 1000
VLANS / CIDR Blocks 3000
VLANS / CIDR Blocks per Physical Port 254
Customized attacks 100,000
Alert filters 128,000
64
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McAfee® IntruShield® IPS 4.1 Before you install
IntruShield Sensor 4000 Product Guide Network topology considerations
Default number of supported UDP Flows 100,000
Supported UDP Flows 750,000
DoS Profiles 5000
SYN rate (64-byte packets per second) 1,000,000
ACL Rules (refer to note below) 1000
Computing Number of ACL rules utilized per sensor
You can calculate the number of ACL rules being utilized per sensor by adding all the
rules configured at the sensor-level, port-level, and sub-interface level.
Example: Computing ACL rules utilized per sensor
On a I-4010 sensor, if you configure 8 rules at the sensor level, 20 rules on port pair
2A-2B, and 10 rules on the sub-interface of 4A-4B, you would have utilized 38 out of
the 1000 limit.
You can also calculate the number of ACL rules utilized by adding the number of
rules displayed under
each sub-interface level.
Effective ACL Rules tab at the sensor level, each port level, and
Computing Number of ACL rules utilized during port clustering
When port clustering (interface grouping) is used, and port-level ACL rules are
configured, the number of ACL rules utilized (for each port-cluster-level ACL) will be
different based on the participant port-types of the cluster. One ACL rule will be
consumed per each inline port-pair member, and one ACL rule will be consumed per
each SPAN port member of the port cluster.
Examples: Computing the effective ACL rule utilization for each port-level ACL rule defined for a portcluster
Port cluster 1: If your port cluster consists of 1A-1B (inline, fail-open), 2B (SPAN), and
4A-4B (inline, fail-close), 3 ACL rules will be consumed for each ACL rule configured
at the port level.
Port cluster 2: If your port cluster consists of 1A (SPAN), 4A (SPAN), 5A (SPAN), 6A6B (inline, fail-close), 4 ACL rules will be consumed for each ACL rule configured at
the port level.
Network topology considerations
Deployment of an IntruShield IPS requires basic knowledge of your network to help
determine the level of configuration and amount of installed sensors and ISMs
required to protect your network.
The IntruShield sensor is purpose-built for the monitoring of traffic across one or
more network segments. For more information on the network topology
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McAfee® IntruShield® IPS 4.1 Before you install
IntruShield Sensor 4000 Product Guide Safety measures
considerations for IntruShield deployment, see Pre-deployment considerations,
Planning and Deployment Guide.
Safety measures
The safety measures given below apply to all sensor models unless otherwise
specified. Carefully read the following warnings before you install the product.
Failure to observe these safety warnings could result in serious physical injury.
Warnings:
• Read the installation instructions before you connect the system to its
power source.
• To remove all power from the I-4000 sensor, unplug all power cords,
including the redundant power cord.
• Only trained and qualified personnel should be allowed to install, replace, or
service this equipment.
• Before working on equipment that is connected to power lines, remove
jewelry (including rings, necklaces, and watches). Metal objects will heat up
when connected to power and ground and can cause serious burns or weld
the metal object to the terminals.
• This equipment is intended to be grounded. Ensure that the host is
connected to earth ground during normal use.
• Do not remove the outer shell of the sensor. Doing so will invalidate your
warranty.
• Do not operate the system unless all cards, faceplates, front covers, and
rear covers are in place. Blank faceplates and cover panels prevent exposure
to hazardous voltages and currents inside the chassis, contain
electromagnetic interference (EMI) that might disrupt other equipment, and
direct the flow of cooling air through the chassis.
• To avoid electric shock, do not connect safety extra-low voltage (SELV)
circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV
circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports
both use RJ45 connectors. Use caution when connecting cables.
• This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
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McAfee® IntruShield® IPS 4.1 Before you install
IntruShield Sensor 4000 Product Guide Working with Fiber-optic ports
Working with Fiber-optic ports
• Fiber-optic ports (for example, FDDI, OC-3, OC-12, OC-48, ATM, GBIC, and
100BaseFX) are considered Class 1 laser or Class 1 LED ports.
• These products have been tested and found to comply with Class 1 limits of
IEC 60825-1, IEC 60825-2, EN 60825-1, EN 60825-2, and 21CFR1040.
Warning: To avoid exposure to radiation, do not stare into the aperture of a fiber-
optic port. Invisible radiation might be emitted from the aperture of the port when
no fiber cable is connected.
Usage restrictions
The following restrictions apply to the use and operation of an IntruShield sensor:
• You may not remove the outer shell of the sensor. Doing so will invalidate
your warranty.
• The sensor appliance is not a general purpose workstation.
• McAfee prohibits the use of the sensor appliance for anything other than
operating the IntruShield IPS.
• McAfee prohibits the modification or installation of any hardware or
software in the sensor appliance that is not part of the normal operation of
the IntruShield IPS.
Unpacking the sensor
To unpack the sensor:
1 Place the sensor box as close to the installation site as possible.
2 Position the box with the text upright.
3 Open the top flaps of the box.
4 Remove the accessory box.
5 Verify you have received all parts. These parts are listed on the packing list and
in Contents of the sensor box.
6 Pull out the packing material surrounding the sensor.
7 Remove the sensor from the anti-static bag.
8 Save the box and packing materials for later use in case you need to move or
ship the sensor.
Contents of sensor box
The following accessories are shipped in the sensor box:
• one sensor
• one CD-ROM containing the sensor software and on-line documentation.
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McAfee® IntruShield® IPS 4.1 Before you install
IntruShield Sensor 4000 Product Guide Unpacking the sensor
• one power cord. McAfee provides a standard, 2m NEMA 5-15P (US) power
cable (3 wire). International customers must procure a country-appropriate
power cable.
• one set of rack mounting ears
• one printed Quick Start Guide
• Release Notes
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C HAPTER 3
Setting up the I-4000 sensor prior to configuration
This chapter describes the process of setting up a sensor prior to configuring it via
Setup overview
the ISM.
Setting up a sensor involves the following steps:
1 Positioning the sensor. (See Positioning the I-4000)
2 Installing the GBICs.
3 Attaching power, network, and monitoring cables. (See
4000 Sensor
4 Powering on the sensor. (See
Once you have set up and powered on the sensor, you can proceed with
configuration.
(on page 17))
Powering on the sensor (on page 17).)
Attaching Cables to the I-
Positioning the I-4000
Place the sensor in a physically secure location, close to the switches or routers it
will be monitoring. Ideally, the sensor should be located within a standard
communications rack.
The I-4000 is a 2RU (2 rack unit).
To mount the sensor in a rack, you will attach two mounting ears to the sensor, then
mount the ears to the rack. The sensor ears attach to either the front or the middle of
the chassis.
Installing the ears on the chassis
Caution: Before you install the ears on the chassis, make sure that power is OFF.
Remove the power cable and all network interface cables from the sensor.
Each rack-mounting ear has holes that match up with holes in the chassis.
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McAfee® IntruShield® IPS 4.1 Setting up the I-4000 sensor prior to configuration
IntruShield Sensor 4000 Product Guide Positioning the I-4000
► To install the ears on the chassis, follow these steps:
1 Verify that you have all the parts you will need: two chassis ears and twelve
Phillips flathead screws.
2 Attach the first chassis ear to the right side of the chassis. Use a Phillips
screwdriver to secure the Phillips flathead screws to the chassis.
3 Repeat this procedure for the other ear.
Figure 2: Attaching the mounting ears to the sensor chassis
Mounting the I-4000 sensor in a rack
McAfee recommends rack-mounting your sensors. The rack-mounting hardware
included with the sensors is suitable for most 19-inch equipment racks and telco-type
racks. For maintenance purposes, you should have access to the front and rear of the
sensor.
Caution: Before you mount the sensor in the rack, make sure that power is OFF.
Remove the power cable and all network interface cables from the sensor
Rack-mount the sensor by securing the rack mount ears to two posts or mounting
strips in the rack. The ears secure the sensor to two rack posts, and the rest of the
sensor is cantilevered off the ears.
Note: You need two people to install the sensor in the rack—one person to hold
the sensor and one person to secure it to the rack.
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McAfee® IntruShield® IPS 4.1 Setting up the I-4000 sensor prior to configuration
IntruShield Sensor 4000 Product Guide Installing the I-4000 redundant power supply
Mount the sensor by securing the ears to two posts or mounting strips in the rack.
Because the ears bear the weight of the entire sensor, be sure to fasten the ears
securely to the rack.
Figure 3: Mounting the I-4000 sensor in a rack
Installing the I-4000 redundant power supply
A basic configuration of the I-4000 includes one hot-swappable power supply. You
may install a second hot-swappable power supply (purchased separately from
McAfee) for redundancy.
Each of these modules has one handle for insertion or extraction from the unit and a
fastening screw.
Installing a power supply
► To install a power supply in the I-4000:
1 Unpack the power supply from its shipping carton.
2 Remove the faceplate panel covering the power supply slot.
Note: The faceplate panel should remain in place unless a power supply is in
the power supply slot. Do not operate the sensor without the faceplate panel
in place.
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McAfee® IntruShield® IPS 4.1 Setting up the I-4000 sensor prior to configuration
IntruShield Sensor 4000 Product Guide Installing the I-4000 redundant power supply
3 Place the power supply in the slot with the cable outlet facing front and on the
left side of the faceplate.
Figure 4: Installing a power supply
4 Slide in the power supply until it makes contact with the backplane, then push
firmly to mate the connectors solidly with the backplane.
5 Secure the power supply’s front panel to the sensor chassis using the mounting
screw on the left of the power supply’s front panel.
Note: For true redundant operation with the optional redundant power supply,
McAfee recommends that you plug each supply into a different power circuit. For
optimal protection, use uninterrupted power sources.
Removing a power supply
► To remove a power supply from the I-4000 (Optional—the power
supplies are hot-swappable):
1 Unplug the power cable from its power source and remove the power cable
from the power supply.
2 Put on an antistatic wrist or ankle strap. Attach the strap to a bare metal surface
of the chassis.
3 Unscrew the screws connecting the mounting bracket and remove the bracket
from the front the power supply.
4 Squeeze the handle of the power supply and pull it out.
5 Use faceplate panels to protect unused slots from dust and reduce
electromagnetic radiation.
6 Replace the mounting bracket.
Warning 1: To remove all power from the I-4000 sensor, unplug all power cords.
Warning 2: To avoid data interruption, do not power off both power supplies on an
in-line sensor, or the sensor shuts down and all data traffic stops. Power off only
the power supply you are replacing.
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McAfee® IntruShield® IPS 4.1 Setting up the I-4000 sensor prior to configuration
IntruShield Sensor 4000 Product Guide Installing GBICs
Installing GBICs
A GBIC is a hot-swappable input/output device that plugs into a Gigabit Ethernet port,
linking the module port with a fiber-optic network. Use only McAfee-approved GBICs
either purchased from McAfee or from certified vendors.
Note: To ensure compatibility, McAfee supports only those GBICs purchased
through McAfee or from a McAfee-approved vendor. For a list of approved
vendors, see the on-line KnowledgeBase,
https://mysupport.mcafee.com
These installation instructions provide information for installing a GBIC that uses two
clips for securing the GBIC in place in the sensor. Your GBIC may be slightly
different. Check the manufacturer’s installation instructions for more details.
Installing a GBIC
► To install a GBIC that has clips, follow these steps:
1 Remove the GBIC from its protective packaging.
2 Ensure the GBIC is the correct model for your network.
3 Grip the sides of the GBIC with your thumb and forefinger and insert the GBIC
into the module socket.
GBICs are generally keyed to prevent incorrect insertion.
Mcafee Support Site.
Figure 5: Inserting a GBIC into a GBIC slot on the sensor
4 Slide the GBIC through the flap covering the socket opening until you hear a
click indicating the GBIC is locked into the slot.
5 GBICs generally have a protective plug in the optical bore. When you are ready
to attach the network interface cable, remove the plug from the GBIC optical
bore and save the plug for future use.
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McAfee® IntruShield® IPS 4.1 Setting up the I-4000 sensor prior to configuration
IntruShield Sensor 4000 Product Guide Cabling the sensor
Removing a GBIC
► If you are removing a GBIC that has clips, follow these steps:
1 Disconnect the network fiber-optic cable from the GBIC connector.
2 Release the GBIC from the slot by simultaneously squeezing the two plastic tabs
(one on each side of the GBIC).
3 Slide the GBIC out of the Gigabit Ethernet module slot. A flap drops down to
protect the Gigabit Ethernet module connector.
4 Insert the GBIC plug into the GBIC optical bore to protect the GBIC slot.
Cabling the sensor
Follow the steps outlined in Attaching Cables to the I-4000 Sensor (on page 18) to
connect cables to the monitoring, response, console, and management ports on your
sensor.
Powering on the I-4000
Do not attempt to power on the sensor until you have installed the sensor in a rack,
made all necessary network connections, and connected the power cable to the
power supply.
1 Connect the power cable to the sensor power supply.
2 Connect the power cable to a power source.
Note: If you are installing a redundant power supply, you should install it as
described in Installing a power supply. For true redundant operation with the
optional redundant power supply, McAfee recommends that you plug each supply
into a different power circuit.
The I-4000 sensor has no power switch. The sensor powers on as soon as one of its
power cables is connected to a power source.
Powering off the sensor
McAfee recommends that you use the shutdown CLI command to halt the sensor
before powering it down. For more information on CLI commands, see
Configuration Guide—using CLI
Sensor
.
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C HAPTER 4
Attaching cables to the I-4000 Sensor
Follow the steps outlined in this chapter to connect cables to the various ports on
Cabling the Console port
your sensor.
The Console port is used for setup and configuration of the sensor.
1 For console connections, plug the DB9 Console cable supplied by McAfee into
Console port (labeled Console on the sensor front panel).
the
2 Connect the other end of the Console port cable directly to a COM port of the
PC or terminal server you will use to configure the sensor (for example, a PC
running correctly configured Windows HyperTerminal software). You must
connect directly to the console for initial configuration.
Required settings for HyperTerminal are:
Name Setting
Baud rate 9600
Number of bits 8
Parity None
Stop bits 1
Flow Control None
3 Power on the sensor.
Cabling the Auxiliary port
The Auxiliary (Aux) port is used for modem access to the sensor for setup and
configuration.
You cannot use a modem the first time you configure a sensor.
1 For modem connections, plug a straight-through modem cable into the Auxiliary
port (labeled
2 Connect a modem to the Aux port.
3 Connect a telephone line to the modem.
Required settings for the
Aux on the sensor front panel).
Aux port are:
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling the Response ports
Name Setting
Baud rate 9600
Number of bits 8
Parity None
Stop bits 1
Flow Control None
Required settings for the modem are:
• 9600 bps port speed
• Answer after 1 ring
• Save the configuration to NVRAM.
Cabling the Response ports
The sensor's Response ports are used to send responses to attacks when operating
in SPAN or tap mode. You must use a Response port to inject response packets to
the switches or routers.
► To connect the Response port to a network device:
1 Plug a Cat 5/Cat 5e cable into the Response port (labeled Rx on the sensor front
panel).
2 Connect the other end of the cable to the network device (for example, hub,
switch, router) through which you want to respond to attacks.
Cabling the Management port
The Management (Mgmt) port is used for communication with the ISM server.
► To connect the sensor to the ISM server:
1 Plug a Cat 5/Cat 5e cable into the Management port (labeled Mgmt on the sensor
front panel).
2 Connect the other end of the cable to the network device (for example, hub,
switch, router) that in turn connects to the ISM server.
Note: To isolate and protect your management traffic, McAfee strongly
recommends using a separate, dedicated management subnet to interconnect the
sensors and the ISM.
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling the Management port
Cabling the I-4000 Monitoring ports
Connect to the network devices you will be monitoring via the sensor Monitoring
ports. You can deploy sensors in the operating modes shown in the following table.
Cabling instructions for the sensor Monitoring ports are shown on the pages
indicated.
To cable the I-4000 in this
mode...
See...
In-line mode (fail-closed) Cabling the I-4000to monitor in in-line mode
(on page 22)
In-line mode (fail-open) Using fail-open hardware (on page 24)
External tap mode Cabling I-4000 GBIC's ports in external Tap
mode (on page 22)
SPAN or Hub mode Cabling the I-4000 sensor to monitor in SPAN
or hub mode
Failover Cabling I-4000 sensors for failover (on page
23)
Using peer ports for I-4000
All full-duplex sensor deployment modes require the use of two peer monitoring
ports on the sensor. On the sensors, the numbered ports are wired in pairs to
accommodate the traffic.
The following ports are coupled and must be used together:
Port pairs
1A and 1B (GBIC ports)
2A and 2B (GBIC ports)
Note: You cannot configure, for example, 1A and 2A to work together as a pair.
Figure 6: Peer Ports on the I-4000
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling the Management port
Default Monitoring port speed settings for I-4000
Be sure that the switch/router ports connected to the sensor Monitoring ports match
the sensor configuration.
Default monitoring port speed settings
Monitoring Ports Operating
Mode
GBIC ports SPAN Auto-negotiation is ON;
Speed/Duplex Setting
Tap Auto-negotiation is ON;
In-line Auto-negotiation is ON;
Cable types for routers, switches, hubs, and PCs
The cabling instructions in this chapter:
• Use a crossover Ethernet RJ45 cable to connect a router port to 10/100
Monitoring ports.
• Use a straight-through Ethernet RJ45 cable to connect a switch/hub port to
10/100 Monitoring ports.
• Use a crossover Ethernet RJ45 cable to connect a router port to PC to the
sensor Management port.
Note: You should also use a crossover Ethernet RJ45 cable to connect a PC to the
sensor monitoring port.
Using fail-open hardware
The GE ports on the I-4000 fail-closed. For fail-open functionality, you must use the
optional Gigabit Fail-Open Bypass Kit, which contains a Bypass Switch and the
equipment needed to connect the switch to the sensor. This Kit is sold separately.
Installation and troubleshooting instructions for the Kit can be found in the kit’s
documentation. For more details on fail-open operation with the kit, see Using failopen hardware.
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling for in-line mode
Cabling for in-line mode
The GBIC ports fail closed, meaning they stop the flow of traffic if the sensor fails. To
allow traffic to flow uninterrupted, you must use special hardware and cable the
sensor for fail-open functionality. For instructions, see the section later in this
chapter.
► To connect the I-4000’s GBIC ports so they fail closed:
1 Plug the cable appropriate for use with your GBIC into one of the GBIC ports
labeled xA (for example, 1A).
2 Plug another cable into the peer of the port used in Step 1. This port will be
labeled xB (for example, 1B).
3 Connect the other end of each cable to the network devices that you want to
monitor. (For example, if you plan to monitor traffic between a switch and a
router, connect the cable connected to 1A to the switch and the one connected
to 1B to the router.)
Cabling for Tap mode
Cabling I-4000 GBIC ports in external Tap mode
The I-4000 sensor’s GBIC ports must be used with a 3rd party external tap.
Note: For a list of approved 3rd party vendors, see the KnowledgeBase at Mcafee
Support Site https://mysupport.mcafee.com. External tap mode requires a port pair
(for example, 1A and 1B).
► To connect the sensor to the devices you want to monitor in external
tap mode:
1 Plug the cable appropriate for use with your GBIC into one of the GBIC ports
labeled xA (for example, 1A).
2 Plug another cable into the other GBIC port labeled xB (for example, 1B).
3 Connect the other end of each cable to the tap.
4 Connect the network devices that you want to monitor to the tap.
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling for SPAN mode
Cabling for SPAN mode
Cabling the I-4000 sensor to monitor in SPAN or hub
mode
When you monitor in SPAN or Hub mode, you do not need to use a port pair. You
can use single ports.
► To connect an I-4000 sensor to a SPAN port or Hub:
1 Plug a SC-type fiber optic cable into one of the monitoring ports.
2 Connect the other end of the cable to the SPAN port or the hub.
Note: See Cable types for routers, switches, hubs, and PCs (on page 21) to
determine which cable type to use with which type of network device.
Cabling the failover interconnection ports
Failover requires connecting two identical I-4000 sensors (same model, same
software) via an interconnection cable or cables.
Note:
The Sensor can be configured to run in in-line or SPAN/TAP mode.
TCP reset is not supported when connected in TAP mode.
Cabling I-4000 sensors for failover
Gigabit ports 2A-and 2B are the interconnection ports on the I-4000. A failover cable
is the only additional hardware required to support failover communication between
two I-4000 sensors.
To connect two I-4000s for failover:
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling for SPAN mode
1 Plug the cable appropriate for use with your GBIC into port 2A of the active
sensor.
2 Connect the other end of the cable to port 2A of the standby sensor.
3 Plug the cable appropriate for use with your GBIC into port 2B of the active
sensor.
4 Connect the other end of the cable to port 2B of the standby sensor.
Figure 7: Two I-4000s cabled for failover
Using fail-open hardware
The Gigabit Fail-Open kit (sold separately) minimizes the potential risks of in-line
IntruShield sensor failure on critical network links. Both Copper and Optical versions
of the Kit are available.
The Gigabit Ethernet (GE) Monitoring ports on IntruShield sensors are configured to
fail close by default; thus, if the sensor is deployed in-line, a hardware failure results
in network downtime. Fail-open operation for GE ports requires the use of the
optional external Bypass Switch provided in the Kit.
With the Bypass Switch in place, normal sensor operation supplies power to the
switch via a control cable. While the sensor is operating, the switch is “on” and
routes all traffic directly through the sensor. When the sensor fails, the switch
automatically shifts to a bypass state: in-line traffic continues to flow through the
network link, but is no longer routed through the sensor. Even after the sensor
comes back online, the ports configured as fail-open will remain in 'Bypass' mode
until the user manually puts them back to fail-open.
Caution 1: Note that sensor outage breaks the link connecting the devices on
either side of the sensor for a brief moment and requires the renegotiation of the
network link between the two peer devices connected to the sensor. Depending
on the network equipment, this disruption introduced by the renegotiation of the
link layer between the two peer devices may range from a couple of seconds to
more than a minute with certain vendors’ devices.
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McAfee® IntruShield® IPS 4.1 Attaching cables to the I-4000 Sensor
IntruShield Sensor 4000 Product Guide Cabling for SPAN mode
Caution 2: A very brief link disruption may also occur while the links between the
sensor and each of the peer devices are renegotiated to place the sensor back in
in-line mode. This outage, again, varies depending on the device, and can range
from a few seconds to more than a minute.
Installation and troubleshooting instructions for the Kit can be found in the Quick
Guide that accompanies the kit. For more information on the Optical kit, see
Optical Fail-Open Bypass Kit Guide.
Gigabit
25
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failover ................................................................... 24
fan LED .................................................................... 4
Index
flash LED ................................................................. 4
front panel LEDs ...................................................... 4
1
10/100 ports
10/100 Management port ..................................20
10/100 Monitoring ports Link LED ....................... 4
10/100 Response port ....................................... 20
10/100 Response port Link LED .................... 4
10/100 Response port Speed LED ................4
A
accomplishing fail-closed functionality ..................... 2
auxiliary port............................................................. 2
B
boot LED ..................................................................4
C
cabling.................................................. 18, 19, 20, 23
cabling for failover .................................................. 24
cabling instructions................................................. 18
cabling sensor for GBIC ports ................................ 23
cabling the auxiliary port ........................................19
cabling the console port .........................................19
cabling the sensors for failover ..............................24
chasis ..................................................................... 13
Compact Flash port.................................................. 2
connecting to sensor .............................................. 20
console port.............................................................. 2
G
GBIC Monitoring ports ............................................. 2
H
heat requirements .................................................... 7
I
in-line mode
deployment........................................................ 23
installing GBICs ..................................................... 17
L
LED description........................................................ 4
link LED.................................................................... 4
M
management port..................................................... 2
P
peer ports on I-4000............................................... 21
ports on the I-4000................................................... 2
power LED ............................................................... 4
powering the sensor......................................... 15, 18
R
removing GBICs..................................................... 18
D
describing an IntruShield sensor.............................. 1
dongles................................................................... 24
F
fail-open functionality .............................................24
S
sensor capacity ........................................................ 9
sensor responsibilities.............................................. 1
SPAN port .............................................................. 24
speed LED ............................................................... 4
Sys LED ................................................................... 4
Page 35
T
tap mode ................................................................23
Temp LED ................................................................ 4
U
using fail-open hardware........................................ 25
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