About the I-1400 Sensor - Knowledge Center

About the I-1400 Sensor - Knowledge Center
I-1400 Sensor Product Guide
Revision A
McAfee® Network Security Platform
COPYRIGHT
Copyright © 2012 McAfee, Inc. Do not copy without permission.
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other countries. Other names and brands may be claimed as the property of others.
LICENSE INFORMATION
License Agreement
NOTICE TO ALL USERS: CAREFULLY READ THE APPROPRIATE LEGAL AGREEMENT CORRESPONDING TO THE LICENSE YOU PURCHASED, WHICH SETS
FORTH THE GENERAL TERMS AND CONDITIONS FOR THE USE OF THE LICENSED SOFTWARE. IF YOU DO NOT KNOW WHICH TYPE OF LICENSE YOU
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FORTH IN THE AGREEMENT, DO NOT INSTALL THE SOFTWARE. IF APPLICABLE, YOU MAY RETURN THE PRODUCT TO MCAFEE OR THE PLACE OF
PURCHASE FOR A FULL REFUND.
2
McAfee® Network Security Platform
I-1400 Sensor Product Guide
Contents
Preface
About this guide . . . . . . . . . . . . . . . .
Audience . . . . . . . . . . . . . . . .
Conventions . . . . . . . . . . . . . . .
What's in this guide . . . . . . . . . . . .
Finding product documentation . . . . . . . . . .
1
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Setup overview . . . . . . . . . . . . . . . . . . . . . .
Position the Sensor . . . . . . . . . . . . . . . . . . . .
Install the ears on the chassis . . . . . . . . . . . . .
Cable the Sensor . . . . . . . . . . . . . . . . . . . . .
Power on the Sensor . . . . . . . . . . . . . . . . . . .
Power off the Sensor . . . . . . . . . . . . . . . .
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Setting up the Sensor prior to configuration
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Attaching cables to the Sensor
15
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19
the Console port . . . . . . . . . . . . . . . . . . . . . . . .
the Auxiliary port . . . . . . . . . . . . . . . . . . . . . . .
the Response ports . . . . . . . . . . . . . . . . . . . . . .
the Management port . . . . . . . . . . . . . . . . . . . . . .
the Monitoring ports . . . . . . . . . . . . . . . . . . . . . .
How to use peer ports . . . . . . . . . . . . . . . . . . . . .
Default Monitoring port speed settings . . . . . . . . . . . . . .
Cable types for routers, switches, hubs, and PCs . . . . . . . . . .
Fail-close dongles . . . . . . . . . . . . . . . . . . . . . . .
Cable the Sensor to monitor in in-line mode . . . . . . . . . . . . . . .
Cable the Sensor to monitor in internal tap mode . . . . . . . . . . . . .
Cable the Sensor to monitor in SPAN or hub mode . . . . . . . . . . . .
McAfee® Network Security Platform
7
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Cable
Cable
Cable
Cable
Cable
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Before you install
Sensor specifications . . . . . . . . . . . . . . . . .
Network topology considerations . . . . . . . . . . . . .
Safety measures . . . . . . . . . . . . . . . . . . .
About fiber-optic ports . . . . . . . . . . . . . .
Usage restrictions . . . . . . . . . . . . . . . . . . .
Unpack the Sensor . . . . . . . . . . . . . . . . . .
Contents of the Sensor box . . . . . . . . . . . .
3
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Introducing Network Security Sensors
What is a Network Security Sensor? . . . . . . . . . . . .
Functions of a Sensor . . . . . . . . . . . . . .
Sensor platforms . . . . . . . . . . . . . . . .
About the I-1400 Sensor . . . . . . . . . . . . . . . .
Ports on the Sensor . . . . . . . . . . . . . . .
Front Panel LEDs on the Sensor . . . . . . . . . .
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I-1400 Sensor Product Guide
3
Contents
Cable the fail-over interconnection ports . . . . . . . . . . . . . . . . . . . . . . . . 24
Cable the Sensors for failover . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Index
4
McAfee® Network Security Platform
27
I-1400 Sensor Product Guide
Preface
This guide provides the information you need to configure, use, and maintain your McAfee product.
Contents
About this guide
Finding product documentation
About this guide
This information describes the guide's target audience, the typographical conventions and icons used
in this guide, and how the guide is organized.
Audience
McAfee documentation is carefully researched and written for the target audience.
The information in this guide is intended primarily for:
•
Administrators — People who implement and enforce the company's security program.
Conventions
This guide uses the following typographical conventions and icons.
Book title or Emphasis Title of a book, chapter, or topic; introduction of a new term; emphasis.
Bold
Text that is strongly emphasized.
User input or Path
Commands and other text that the user types; the path of a folder or program.
Code
A code sample.
User interface
Words in the user interface including options, menus, buttons, and dialog
boxes.
Hypertext blue
A live link to a topic or to a website.
Note: Additional information, like an alternate method of accessing an option.
Tip: Suggestions and recommendations.
Important/Caution: Valuable advice to protect your computer system,
software installation, network, business, or data.
Warning: Critical advice to prevent bodily harm when using a hardware
product.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
5
Preface
Finding product documentation
What's in this guide
This guide contains information necessary to setup your I-1400 Sensor model. This information
includes guiding you through preconfiguring, cabling, and troubleshooting your Sensor.
Finding product documentation
McAfee provides the information you need during each phase of product implementation, from
installation to daily use and troubleshooting. After a product is released, information about the product
is entered into the McAfee online KnowledgeBase.
Task
1
Go to the McAfee Technical Support ServicePortal at http://mysupport.mcafee.com.
2
Under Self Service, access the type of information you need:
To access...
Do this...
User documentation
1 Click Product Documentation.
2 Select a Product, then select a Version.
3 Select a product document.
KnowledgeBase
• Click Search the KnowledgeBase for answers to your product questions.
• Click Browse the KnowledgeBase for articles listed by product and version.
6
McAfee® Network Security Platform
I-1400 Sensor Product Guide
1
Introducing Network Security Sensors
This section describes the McAfee® Network Security Sensor (Sensor) in detail.
Contents
What is a Network Security Sensor?
About the I-1400 Sensor
What is a Network Security Sensor?
A McAfee® Network Security Sensor (Sensor) is a high-performance, scalable, and flexible content
processing appliance built for the accurate detection and prevention of intrusions, misuse, and
distributed denial of service (DDoS) attacks.
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, a 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 through
the McAfee® Network Security Manager (Manager) server.
The process of configuring a Sensor and establishing communication with the Manager is described in
later chapters of this guide. The Manager server is described in detail in the Getting Started Guide.
Functions of a Sensor
The primary function of a McAfee® Network Security Sensor (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. Sensor 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. This
document describes the I-1400 Sensor.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
7
1
Introducing Network Security Sensors
About the I-1400 Sensor
About the I-1400 Sensor
The Sensor is equipped with four Fast Ethernet ports (or interfaces), and can monitor up to 200 Mbps
of aggregated traffic. This Sensor can monitor two 10/100 Mbps Ethernet segment in full-duplex mode
(tap or in-line), and four segments in half-duplex mode (monitoring SPAN ports or hubs).
Ports on the Sensor
The Sensor is a one rack–unit (1RU) box equipped with the following ports:
Figure 1-1 The I–1400 Sensor
8
Name
Description
1
Management port
2
Console port
3
Auxiliary port
4
10/100 Monitoring ports
5
Response ports
6
One CardBus/PCMCIA slot
7
Power Supply
1
One RS-232C Console port, which is used to set up and configure the Sensor.
2
One RS-232C Auxiliary port, which may be used to dial in remotely to set up and configure the
Sensor.
3
One 10/100 Management port, which is used for secure communication with the Manager
server. Communication between the Sensor and the Manager server uses secure channels; these
channels provide link privacy using encryption and mutual authentication between Sensors and the
Manager using public key authentication. This Ethernet port is assigned an IP address by the user,
during installation.
4
One CardBus/PCMCIA slot, which is not currently in use.
5
Four 10/100 monitoring ports, which enable you to monitor four SPAN ports, two full-duplex
tapped segment, or two segment in-line. These ports operate in stealth mode; that is, they have
no IP addresses nor even a TCP/IP stack to respond to IPS detection techniques. This renders them
completely invisible to intruders.
6
One response port, which, when you are operating in the SPAN mode, enable you to inject
response packets back into your network, for example, through a switch or router.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
Introducing Network Security Sensors
About the I-1400 Sensor
1
7
Power supply. The Sensor power supply port is located in the front of the Sensor. 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.
8
Built-in internal tap (not shown). The internal tap (used with the 10/100 ports) provide stealth
mode monitoring functionality and forgo the need of an external tap or connection to a SPAN port
or hub. When the 10/100 ports are configured to monitor a network segment in peer mode, their
internal tap allows a network segment to be connected directly to the Sensor: one port receives/
transmits from Device A (for example, a firewall, router, switch) and the other receives/transmits
from Device B. You can also change 'on the fly' from internal tap mode to in-line mode.
Internal taps fail–open, meaning that should the sensor fail physically while running in internal tap
mode, the connection is not disrupted; your network traffic will continue to flow unimpeded (although
there may be a minor disruption as the network devices surrounding the Sensor establish direct
connectivity).
If you want to have fail-closed functionality, you can accomplish this through cabling. Normal Cat 5/
Cat 5e cabling will fail open. Special cabling using the supplied fail–closed dongle provides fail–closed
functionality.
See also
Cable the Monitoring ports on page 21
Front Panel LEDs on the Sensor
The front panel LEDs provide status information for the health of the Sensor and the activity on its
ports. The following table describes the Sensor front panel LEDs.
LED
Status Description
Power
Green
The Sensor is powered on and functioning.
Off
The Sensor is powered off.
Green
The Sensor is up and initialized.
Off
The Sensor is powered off or is rebooting.
Up
Boot
Amber The Sensor is in the process of booting up.
Off
Management Port
Speed
Amber The port speed is 100 Mbps.
Off
Management Port Link Green
Fan
The Sensor is powered off or the Sensor is working fine after bootup
initialization.
The port speed is 10 Mbps.
The link is connected.
Off
The link is disconnected.
Green
Fan is operating.
Amber The fan has failed.
Temp
Green
Inlet air temperature measured inside chassis is normal. (Chassis
Amber temperature OK.)
Inlet air temperature measured inside chassis is too hot. (Chassis
temperature too hot.)
CardBus/PCMCIA
Green
Activity on external compact flash.
Off
No activity on external compact flash.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
9
1
Introducing Network Security Sensors
About the I-1400 Sensor
LED
Status Description
10/100 Monitoring
Ports Speed
Amber The port speed is 100 Mbps.
Off
The port speed is 10 Mbps
10/100 Monitoring
Ports Link
Green
The link is connected.
Off
The link is disconnected.
Response Port Speed
Green
The port speed is 1000 Mbps
Amber The port speed is 100 Mbps.
Response Port Link
10
Off
The port speed is 10 Mbps.
Green
The link is connected.
Off
The link is disconnected.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
2
Before you install
This chapter describes the best practices for deployment of Sensors on your network. Topics discussed
include system requirements, site planning, safety considerations for handling the Sensor, and usage
restrictions that apply to the Sensor.
Contents
Sensor specifications
Network topology considerations
Safety measures
Usage restrictions
Unpack the Sensor
Sensor specifications
The following table lists the specifications of the Sensor.
Sensor Specifications
Description
Dimensions
Without mounting ears/cable management:
• width: 17.32 in. (43.99 cm.)
• height: 1.65 in. (4.19 cm.)
• depth: 11.5 in. (29.21cm.)
With mounting ears/cable management:
• width: 19.00 in. (48.26 cm.)
• height: 1.65 in. (4.19 cm.)
• depth: 12.37 in. (31.41 cm.)
Dimensions do not include cables or power cords.
Weight
7 lb. (3.18 kg.)
Voltage Range
100-240 VAC
Frequency
50/60 Hz
Vibration, operating
5 to 200 Hz, 0.5 g (1 oct/min)
Vibration, non-operating
5 to 200 Hz, 1 g (1 oct/min)
200 to 500 Hz, 2 g (1 oct/min)
Power requirements
McAfee® Network Security Platform
100 W
I-1400 Sensor Product Guide
11
2
Before you install
Network topology considerations
Sensor Specifications
Description
Ambient Temperature Range (Non-condensing)
Operating
0C(32F) to 40C(104F)
Non-operating
-40C(-40F) to 70C(158F)
Relative Humidity (Non-condensing)
Operating
10%-90% non-condensing
Non-operating
5% to 95% non-condensing
System Heat Dissipation
341 BTU/hr
Airflow
200 lfm (1 m/s)
Altitude
Sea level to 10,000 ft (3050 m)
Throughput
200 Mbps
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.
Throughout this guide, cabling specifications will be mentioned as Cat 5/Cat 5e.
Network topology considerations
Deployment of McAfee® Network Security Platform [formerly McAfee® IntruShield®] network intrusion
prevention system requires basic knowledge of your network to help determine the level of
configuration and amount of installed Sensors and Managers required to protect your network.
The Sensor is purpose-built for the monitoring of traffic across one or more network segments. For
more information on the network topology considerations for Network Security Platform deployment,
see the IPS Administration 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:
12
•
Read the installation instructions before you connect the system to its power source.
•
To remove all power from the 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.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
Before you install
Usage restrictions
2
•
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 users will be required to correct the interference at their own expense.
About 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.
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 a 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 Network
Security Platform.
•
McAfee prohibits the modification or installation of any hardware or software on the Sensor
appliance that is not part of the normal operation of Network Security Platform.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
13
2
Before you install
Unpack the Sensor
Unpack the Sensor
Task
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 the Contents of the Sensor box section.
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.
See also
Contents of the Sensor box on page 14
Contents of the Sensor box
The following accessories are shipped in the Sensor box:
14
•
One 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 with specific v/a ratings.
•
One set of rack mounting ears.
•
Four fail-closed dongles.
•
One printed Quick Start guide.
•
Release notes.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
3
Setting up the Sensor prior to
configuration
This chapter describes the process of setting up a Sensor prior to configuring it through the McAfee®
Network Security Manager (Manager).
Contents
Setup overview
Position the Sensor
Cable the Sensor
Power on the Sensor
Setup overview
Setting up a Sensor involves the following steps:
Task
1
Positioning the Sensor.
2
Attaching power, network, and monitoring cables.
3
Powering on the Sensor.
Once you have set up and powered on the Sensor, you can proceed with the configuration.
See also
Position the Sensor on page 15
Attaching cables to the Sensor on page 3
Power on the Sensor on page 17
Position the Sensor
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 Sensor is 1RU (1 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.
McAfee® Network Security Platform
I-1400 Sensor Product Guide
15
3
Setting up the Sensor prior to configuration
Position the Sensor
Install the ears on the chassis
Before you begin
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 on the chassis.
Task
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 3-1 Attaching the mounting ears to the sensor chassis
Mount the Sensor on 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.
Before you mount the Sensor on 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.
You need two people to install the Sensor in the rack—one person to hold the Sensor and the other to
secure it to the rack.
16
McAfee® Network Security Platform
I-1400 Sensor Product Guide
Setting up the Sensor prior to configuration
Cable the Sensor
3
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 3-2 Mounting the I-1400 sensor io a rack
Cable the Sensor
Follow the steps outlined in the Attaching Cables to the Sensor chapter to connect cables to the
monitoring, response, console, and management ports on your Sensor.
Power on the Sensor
Do not attempt to power on the Sensor until you have installed the Sensor on a rack, made all
necessary network connections, and connected the power cable to the power supply. Then:
1
Connect the power cable to the Sensor power supply.
2
Connect the power cable to a power source.
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 Sensor has no power switch. The Sensor powers on as soon as you connect one of its power
cables to a power source.
Power 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 CLI Guide.
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Setting up the Sensor prior to configuration
Power on the Sensor
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Attaching cables to the Sensor
Follow the steps outlined in this chapter to connect cables to the various ports on your Sensor.
Contents
Cable
Cable
Cable
Cable
Cable
Cable
Cable
Cable
Cable
the
the
the
the
the
the
the
the
the
Console port
Auxiliary port
Response ports
Management port
Monitoring ports
Sensor to monitor in in-line mode
Sensor to monitor in internal tap mode
Sensor to monitor in SPAN or hub mode
fail-over interconnection ports
Cable the Console port
The Console port is used for setup and configuration of the Sensor.
Task
1
For console connections, plug the DB9 Console cable supplied by McAfee into the Console port
(labeled Console on the Sensor front panel).
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, it could be a PC running correctly configured Windows HyperTerminal software. You
must connect directly to the console for initial configuration.
Required settings for HyperTerminal are:
3
Name
Setting
Baud rate
9600
Number of bits
8
Parity
None
Stop bits
1
Flow Control
None
Power on the Sensor.
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4
Attaching cables to the Sensor
Cable the Auxiliary port
Cable the Auxiliary port
The Auxiliary (Aux) port is used for modem access to the Sensor for setup and configuration. However,
you cannot use a modem the first time you configure a Sensor.
Task
1
For modem connections, plug a straight-through modem cable into the Auxiliary port (labeled Aux
on the Sensor front panel).
2
Connect a modem to the Aux port.
3
Connect a telephone line to the modem.
Required settings for the Aux port are:
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.
Cable 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.
Task
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.
Cable the Management port
The Management (Mgmt) port is used for communication with the Manager server.
To isolate and protect your management traffic, McAfee strongly recommends using a separate,
dedicated management subnet to interconnect the Sensors and the Manager.
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Attaching cables to the Sensor
Cable the Monitoring ports
4
Task
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 Manager server.
Cable the Monitoring ports
Monitoring ports connect to the network devices you will be monitoring through the Sensor. You can
deploy the Sensors in the following modes:
•
In-line
•
Internal tap (10/100 ports)
•
SPAN or Hub
See also
Cable the Sensor to monitor in in-line mode on page 22
Cable the Sensor to monitor in internal tap mode on page 23
Cable the Sensor to monitor in SPAN or hub mode on page 24
How to use peer ports
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.
Ports 1A and 1B (10/100) are coupled and must be used together. You cannot configure, for example,
1A and 2A to work together as a pair.
Figure 4-1 Example port pair (peer ports)
Default Monitoring port speed settings
Make sure that the switch/router ports connected to the Sensor monitoring ports match the Sensor
configuration.
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Attaching cables to the Sensor
Cable the Sensor to monitor in in-line mode
Table 4-1 Default monitoring port speed settings
Monitoring Ports
Operating Mode
Speed/Duplex Setting
10/100 ports
SPAN
Auto-negotiation is OFF;
Speed and Duplex are configurable
Tap
Auto-negotiation is ON;
Speed is configurable;
Duplex is always half
In-Line
Auto-negotiation is OFF;
Speed and Duplex are configurable
Cable types for routers, switches, hubs, and PCs
This section describes the types of cables that you require to connect the Sensor to other network
devices.
•
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.
You should also use a crossover Ethernet RJ45 cable to connect a PC to the Sensor monitoring port.
Fail-close dongles
The fail-close dongles provided with the Sensor are designed to complement the 10/100 monitoring
port functionality of the Sensor. You plug the dongle into a Sensor 10/100 monitoring port, and then
connect a Cat 5/Cat 5e cable to the dongle.
The following table lists the operating modes where dongles should be used:
SPAN
Tap
In-Line
Fail-open (traffic flows)
NA
no dongles
no dongles
Fail-close (traffic stops)
dongles
NA
dongles
Cable the Sensor to monitor in in-line mode
In-line mode requires that you use a pair of Sensor ports as described in How to use peer ports.
Cabling Sensors for in-line mode requires a brief network interruption as you insert it in the flow of
network traffic. To avoid extended network downtime, you should cable a Sensor for in-line mode after
you have completed all other configuration tasks.
The Sensor's internal 10/100 ports fail open, meaning they allow traffic to continue to flow
unimpeded if the Sensor fails. To interrupt traffic, you must use the special fail-closed dongles that is
supplied in the Sensor box.
This procedure explains how to connect the Sensor to the devices you want to monitor in in-line mode.
It uses the port pair 1A-1B as an example.
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Attaching cables to the Sensor
Cable the Sensor to monitor in internal tap mode
4
Task
1
Do one of the following:
•
For fail-closed operation, plug a Cat 5/Cat 5e cable with a fail-closed dongles into port 1A. The
fail-closed dongles will interrupt traffic if the Sensor fails.
•
For fail-open operation, plug a Cat 5/Cat 5e cable into port 1A.
See Cable types for routers, switches, hubs, and PCs to determine which cable type to use with
which type of network device.
2
Plug a Cat 5/Cat 5e cable into port 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.
See also
Cable types for routers, switches, hubs, and PCs on page 22
How to use peer ports on page 21
Cable the Sensor to monitor in internal tap mode
Internal tap mode requires that you use both Sensor ports as described in How to use peer ports.
The Sensor's internal tap works in fail-open mode, meaning it allows traffic to continue to flow
unimpeded if the Sensor fails. Note, however, that in the event of a Sensor error or reboot, there may
be a brief (seconds to minutes) network interruption as the two devices connected to the Sensor
establish connectivity.
The total cable length of the two LAN cables connected to the two ports in tap mode (that is 1A and
1B) cannot exceed 100 meters if you want to use fail-open mode.
As with cabling for in-line mode, cabling the Sensor for internal tap mode requires a brief network
interruption as you insert the Sensor in the flow of network traffic. To avoid extended network
downtime, you should cable the Sensor for internal tap mode after you have completed all other
configuration tasks.
Note that the internal tap is designed with a mechanical loopback. When a Sensor error or reboot
takes place, a brief network interruption will occur as the two devices connected to the Sensor
establish connectivity.
Task
1
For fail-open operation, plug a Cat 5/Cat 5e cable into port 1A.
2
Plug a Cat 5/Cat 5e cable into port 1B.
See Cable types for routers, switches, hubs, and PCs to determine which cable type to use with
which type of network device.
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.
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4
Attaching cables to the Sensor
Cable the Sensor to monitor in SPAN or hub mode
See also
Cable types for routers, switches, hubs, and PCs on page 22
How to use peer ports on page 21
Cable the 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.
When you connect the 10/100 ports to SPAN or hub ports you must use a special fail-closed dongles
that is supplied in the Sensor box.
Task
1
Plug a Cat 5/Cat 5e cable with the fail-closed dongles into one of the monitoring ports.
2
Connect the other end of the cable to the SPAN port or the hub.
See Cable types for routers, switches, hubs, and PCs to determine which cable type to use with
which type of network device.
See also
Cable types for routers, switches, hubs, and PCs on page 22
How to use peer ports on page 21
Cable the fail-over interconnection ports
Fail-over requires connecting two identical Sensors (same model, same software) via an
interconnection cable or cables.
Previously, the creation of Sensor fail-over pair was allowed only if all the primary Sensor's monitoring
port pairs were in in-line mode. Now, the flexibility to create a fail-over pair even if the primary Sensor
has some of its monitoring port pairs in non-Inline (tap/SPAN) mode, is provided. For example, in an
I-1400, you may have port pairs 1A-1B configured in in-line mode and ports 2A-2B configured in SPAN
mode.
When running the Sensor in in-line, fail-closed mode, utilize the fail-closed dongles included with the
product. You can configure the Sensor in in-line, tap, or SPAN mode. Note that TCP reset is not
supported when you configure the Sensor in tap mode.
Cable the Sensors for failover
The Response port is the interconnection port on the Sensor. A crossover failover cable is the only
additional hardware required to support failover communication between two Sensor Sensors.
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Attaching cables to the Sensor
Cable the fail-over interconnection ports
4
Task
1
Plug a Cat 5/Cat 5e crossover cable into the Response port of the active Sensor.
2
Connect the other end of the cable to the Response port of the standby Sensor.
Figure 4-2 Two I-1400s cabled for failover
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Attaching cables to the Sensor
Cable the fail-over interconnection ports
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McAfee® Network Security Platform
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Index
A
P
about this guide 5
positioning the sensor 15
powering the sensor 17
C
cabling 20, 21
cabling instructions 17
cabling the auxiliary port 20
cabling the console port 19
connecting to sensor 20, 22
conventions and icons used in this guide 5
D
documentation
audience for this guide 5
product-specific, finding 6
typographical conventions and icons 5
R
Response port 8
S
safety warnings 13
sensor responsibilities 7
ServicePortal, finding product documentation 6
setting up a sensor 15
T
Technical Support, finding product information 6
Temp LED 9
F
U
fail-open functionality 7, 11, 15, 19
using Copper SFP
removing Copper SFP 7, 12–14
using fail-closed dongles - tap mode 23
using fail-closed dongles - TAP mode 22
using peer ports 21
G
GBIC Monitoring ports speed settings 21
H
heat requirements 11, 14
M
McAfee ServicePortal, accessing 6
McAfee® Network Security Platform
I-1400 Sensor Product Guide
27
700-3620A00
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