Network Security Platform I-2700 Sensor Product

Network Security Platform I-2700 Sensor Product
I-2700 Sensor Product Guide
Revision A
McAfee® Network Security Platform
COPYRIGHT
Copyright © 2012 McAfee, Inc. Do not copy without permission.
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TrustedSource, VirusScan, WaveSecure, WormTraq are trademarks or registered trademarks of McAfee, Inc. or its subsidiaries in the United States and
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-2700 Sensor Product Guide
Contents
Preface
About this guide . . . . . . . . . . . . . . . .
Audience . . . . . . . . . . . . . . . .
Conventions . . . . . . . . . . . . . . .
What's in this guide . . . . . . . . . . . .
Finding product documentation . . . . . . . . . .
1
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Attaching cables to the Sensor
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 . . . . . . . . . . . . . . . . . . . .
About the fail-open hardware . . . . . . . . . . . . . . .
McAfee® Network Security Platform
7
7
7
7
11
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Setting up the Sensor prior to configuration
Cable
Cable
Cable
Cable
Cable
5
5
5
6
6
7
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Setup overview . . . . . . . . . . . . . . . . . . . . . . .
Position the Sensor . . . . . . . . . . . . . . . . . . . . .
Install the ears on the chassis . . . . . . . . . . . . . .
Redundant power supply for the I-2700 Sensor . . . . . . . . . .
Installation of GBICs . . . . . . . . . . . . . . . . . . . .
Install a GBIC . . . . . . . . . . . . . . . . . . . .
Remove a GBIC . . . . . . . . . . . . . . . . . . .
Cable the Sensor . . . . . . . . . . . . . . . . . . . . . .
Power on the Sensor . . . . . . . . . . . . . . . . . . . .
Power off the Sensor . . . . . . . . . . . . . . . . .
4
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Before you install
I-2700 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 Network Security Platform I-2700 Sensor . . .
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I-2700 Sensor Product Guide
3
Contents
Cable the Sensor to monitor in in-line mode . . . . . . . . . . .
Cable the Sensor GBIC ports for in-line mode . . . . . . .
Cable the Sensor to monitor in internal tap mode . . . . . . . . .
Cable the Sensor GBIC ports in external tap mode . . . . .
Cable the Sensor to monitor in SPAN or hub mode . . . . . . . .
Cable the fail-over interconnection ports . . . . . . . . . . . .
Cable the Sensors for failover . . . . . . . . . . . . . .
About the Gigabit Fail-Open kit . . . . . . . . . . . . . . . .
Index
4
McAfee® Network Security Platform
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I-2700 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-2700 Sensor Product Guide
5
Preface
Finding product documentation
What's in this guide
This guide contains information necessary to setup your I-2700 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-2700 Sensor Product Guide
1
Introducing Network Security Sensors
This section describes the McAfee® Network Security Sensor (Sensor) in detail.
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-2700 Sensor.
About the Network Security Platform I-2700 Sensor
The Network Security Platform I-2700 Sensor is equipped with six Fast Ethernet ports (or interfaces)
and two GBIC slots, and can monitor up to 600 Mbps of aggregated traffic. The six Fast Ethernet ports
can be used to monitor up to three 10/100 Mbps Ethernet segments in full-duplex mode (tap or
McAfee® Network Security Platform
I-2700 Sensor Product Guide
7
1
Introducing Network Security Sensors
What is a Network Security Sensor?
in-line), six segments in half-duplex mode (monitoring SPAN ports or hubs), or a combination of fulland half-duplex links. The Sensor can monitor in sniffing mode (on full- or half-duplex links) on some
of its interfaces while monitoring in in-line mode on others.
Ports on the Sensor
The I-2700 is a two rack-unit (2 RU) box equipped with the following ports:
Figure 1-1 The I-2700 Sensor
Name
Description
1
Console port
2
Auxillary port
3
Management port
4
External Compact Flash port
5
GBIC Monitoring ports or Failover interconnection port (4A only)
6
10/100 Monitoring ports
7
Response Ports
Task
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. You will assign an IP address to this ethernet port during
installation.
4
One External Compact Flash port. This port is used for two purposes. It is used to control
optional fail-open hardware as described in the Gigabit Optical Fail-Open Bypass Kit Guide. It is
also used in troubleshooting situations where the Sensor's internal flash is corrupted and you must
reboot the Sensor through the external compact flash. For more information, see the on-line
KnowledgeBase at McAfee Support Site.
5
Two GBIC monitoring ports, which can monitor Gigabit Ethernet segments transmitting up to
600 Mbps of sustained traffic. One of these ports, 4A, is used as an interconnection port if you
choose to deploy the Sensor for failover.
The GBIC interfaces on the Sensor running in in-line mode fail-close, meaning that if the Sensor
fails, the connection is disrupted and it will interrupt/block data flow. Fail-open functionality requires
the use of the Optical Fail Open Kit, which is described in the section, Cabling the Sensor Monitoring
ports.
8
McAfee® Network Security Platform
I-2700 Sensor Product Guide
Introducing Network Security Sensors
What is a Network Security Sensor?
1
6
Six 10/100 monitoring ports, which enable you to monitor six SPAN ports, three full-duplex
tapped segments, three segments in-line, or in some combination of modes (that is, one
full-duplex and four half-duplex). These ports operate in stealth mode; that is, they have no IP
addresses nor even a TCP/IP stack to respond to IDS detection techniques. This renders them
completely invisible to intruders.
7
Three response ports, which, when you are operating in SPAN mode, enable you to inject
response packets back into your network, for example, through a switch or router.
8
Power Supply. The Sensor power supply port is located in the rear 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.
9
Redundant power supply. (sold separately) The I-2700 supports a redundant power supply; the
port is located in the rear of the Sensor. The redundant supply specifications are identical to that of
the supply included with the Sensor, described above.
10 Built-in internal taps (not shown). The internal taps (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 a pair of 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, which could be a firewall, router, or a switch. The other port
receives/transmits from Device B. You can also change 'on the fly' from internal tap mode to in-line
mode.
You must use a 3rd-party external tap with the GBIC ports. Use only approved taps from certified
vendors. See the KnowledgeBase at McAfee Support Site for a list of approved vendors.
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).
You can accomplish fail-closed functionality through cabling. Normal Cat 5/Cat 5e cabling
will fail-open. Special cabling using the supplied fail-closed dongle provides fail-closed
functionality. For more information, see the Cabling the Monitoring ports section.
See also
About the Gigabit Fail-Open kit on page 28
Fail-close dongles on page 24
Front panel LEDs on the I-2700
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.
Management Port Speed
Management Port Link
Amber The port speed is 100 Mbps.
Off
The port speed is 10 Mbps.
Green
The link is connected.
Off
The link is disconnected.
McAfee® Network Security Platform
I-2700 Sensor Product Guide
9
1
Introducing Network Security Sensors
What is a Network Security Sensor?
LED
Status Description
Sys
Green
Sensor is operating.
Amber Sensor is booting.
Fan A
Green
Fan is operating.
Amber Fan is not operating.
Fan B
Green
Fan is operating.
Amber Fan is not operating.
Temp
Green
Inlet air temperature measured inside chassis is normal.
Amber (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 Port 4A and 4B Act Amber Data transferring.
Off
Gigabit Port 4A and 4B Link Green
Off
The link is connected.
The link is disconnected.
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
Amber The port speed is 100 Mbps.
Response Port Link
10
No data transferring.
Off
The port speed is 10 Mbps.
Green
The link is connected.
Off
The link is disconnected.
McAfee® Network Security Platform
I-2700 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
I-2700 Sensor specifications
Network topology considerations
Safety measures
Usage restrictions
Unpack the Sensor
I-2700 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: 3.46 in. (8.8 cm.)
• depth: 20.4 in. (51.81 cm.)
With mounting ears/cable management:
• width: 19.00 in. (48.26 cm.)
• height: 1.69 in. (4.29 cm.)
• depth: 18.50 in. (46.99 cm.)
Dimensions do not include cables or power cords.
Weight
20 lb. (9.09 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
250 W
I-2700 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
854 BTU/hr
Airflow
200 lfm (1 m/s)
Altitude
Sea level to 10,000 ft (3050 m)
Throughput
600 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-2700 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-2700 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.
•
Six fail-closed dongles.
•
One printed Quick Start guide.
•
Release notes.
McAfee® Network Security Platform
I-2700 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
Redundant power supply for the I-2700 Sensor
Installation of GBICs
Cable the Sensor
Power on the Sensor
Setup overview
Task
1
Position the Sensor.
2
Install the GBICs.
3
Attach the power, network, and monitoring cables.
4
Power on the Sensor.
Once you have set up and powered on the Sensor, you can proceed with the configuration.
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 2RU (2 rack units). To mount the Sensor on 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.
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.
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3
Setting up the Sensor prior to configuration
Position 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 I-2700 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 one person to
secure it to the rack.
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-2700 sensor on a rack
16
McAfee® Network Security Platform
I-2700 Sensor Product Guide
Setting up the Sensor prior to configuration
Redundant power supply for the I-2700 Sensor
3
Redundant power supply for the I-2700 Sensor
A basic configuration of the Sensor includes one hot-swappable power supply. If you require, you may
purchase a second hot-swappable power supply from McAfee, and install it for redundancy.
Each of these modules has one handle for insertion or extraction from the unit and a fastening screw.
Figure 3-3 Installing the power supply for I-2700
Installation of 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.
To ensure compatibility, Network Security Platform supports only those GBICs purchased through
McAfee or from a McAfee-approved vendor. For a list of approved vendors, see the on-line
KnowledgeBase, McAfee Support Site.
The installation instructions in this document 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.
Install a GBIC
This section provides information on how to install a GBIC that has clips.
Task
1
Remove the GBIC from its protective packaging.
2
Ensure the GBIC is the correct model for your network.
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3
Setting up the Sensor prior to configuration
Cable the Sensor
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.
Figure 3-4 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.
Remove a GBIC
This section provides information on how to remove a GBIC that has clips.
Task
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.
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.
18
McAfee® Network Security Platform
I-2700 Sensor Product Guide
Setting up the Sensor prior to configuration
Power on the Sensor
3
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.
McAfee® Network Security Platform
I-2700 Sensor Product Guide
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3
Setting up the Sensor prior to configuration
Power on the Sensor
20
McAfee® Network Security Platform
I-2700 Sensor Product Guide
4
Attaching cables to the Sensor
Follow the steps outlined in this chapter to connect cables to the various ports on your Sensor.
Contents
Cable the Console port
Cable the Auxiliary port
Cable the Response ports
Cable the Management port
Cable the Monitoring ports
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
Cable the fail-over interconnection ports
About the Gigabit Fail-Open kit
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.
McAfee® Network Security Platform
I-2700 Sensor Product Guide
21
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.
22
McAfee® Network Security Platform
I-2700 Sensor Product Guide
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
Cable the
Cable the
Cable the
Cable the
Cable the
Sensor to monitor in in-line mode on page 24
Sensor GBIC ports for in-line mode on page 25
Sensor to monitor in internal tap mode on page 26
Sensor GBIC ports in external tap mode on page 26
Sensor to monitor in SPAN or hub mode on page 27
Sensors for failover on page 27
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.
The following ports are coupled and must be used together:
Port pairs
1A and 1B (10/100 ports)
2A and 2B (10/100 ports)
3A and 3B (10/100 ports)
4A and 4B GBIC ports
You cannot configure, for example, 1A and 2A to work together as a pair.
Figure 4-1 Peer ports on I-2700
Default Monitoring port speed settings
Be sure that the switch/router ports connected to the Sensor Monitoring ports match the Sensor
configuration.
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I-2700 Sensor Product Guide
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4
Attaching cables to the Sensor
Cable the Sensor to monitor in in-line mode
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
GBIC ports
SPAN
Auto-negotiation is ON
Tap
Auto-negotiation is OFF
In-line
Auto-negotiation is ON
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
About the fail-open hardware
For fail-open functionality, you can use the optional Gigabit Fail-Open Bypass Kit. This kit contains a
bypass switch and the equipment needed to connect the switch to the Sensor. This kit is sold separately.
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.
24
McAfee® Network Security Platform
I-2700 Sensor Product Guide
Attaching cables to the Sensor
Cable the Sensor to monitor in in-line mode
4
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.
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.
Tasks
•
Cable the Sensor GBIC ports for in-line mode on page 25
See also
Cable types for routers, switches, hubs, and PCs on page 24
How to use peer ports on page 23
Cable the Sensor GBIC ports for 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 GBIC ports are by default configured to fail-close when running in in-line mode, 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.
This section explains how to connect the Sensor's GBIC ports so they fail close.
Task
1
Plug the cable appropriate for use with your GBIC into one of the GBIC ports.
2
Plug another cable into the peer of the port used in Step 1.
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 a GBIC port to the switch and the peer port to the router).
See also
Cable types for routers, switches, hubs, and PCs on page 24
How to use peer ports on page 23
McAfee® Network Security Platform
I-2700 Sensor Product Guide
25
4
Attaching cables to the Sensor
Cable the Sensor to monitor in internal tap mode
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.
Tasks
•
Cable the Sensor GBIC ports in external tap mode on page 26
See also
Cable types for routers, switches, hubs, and PCs on page 24
How to use peer ports on page 23
Cable the Sensor GBIC ports in external tap mode
The Sensor's GBIC ports must be used with a 3rd party external tap.
For a list of approved 3rd party vendors, see the KnowledgeBase at Network Security Platform Support
Site. External tap mode requires a port pair, for example, 1A and 1B. This section describes how to
connect the Sensor to the devices you want to monitor in external tap mode.
Task
26
1
Plug the cable appropriate for use with your GBIC into one of the GBIC ports.
2
Plug another cable into the corresponding GBIC peer port.
3
Connect the other end of each cable to the tap.
4
Connect the network devices that you want to monitor to the tap.
McAfee® Network Security Platform
I-2700 Sensor Product Guide
Attaching cables to the Sensor
Cable the Sensor to monitor in SPAN or hub mode
4
See also
Cable types for routers, switches, hubs, and PCs on page 24
How to use peer ports on page 23
Cable the Sensor to monitor in SPAN or hub mode
When you monitor in SPAN or hub mode, you can use single ports. When you connect the 10/100
ports to SPAN ports or hubs, you must use a special fail-close dongle that is supplied in the Sensor box.
Task
1
Plug a SC-type fiber optic cable with the fail-close dongle 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 24
How to use peer ports on page 23
Cable the fail-over interconnection ports
Fail-over requires connecting two identical Sensors (same model, same software) through 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-2700, you may have port pairs 1A-1B and 2A-2B configured in in-line mode and ports 3A-3B
configured in SPAN mode.
When running the Sensor in in-line, fail-closed mode, utilize the fail-closed dongles included with the
product. TCP reset is not supported when connected in TAP mode.
Cable the Sensors for failover
Gigabit port 4A is the interconnection port on the Sensor. A failover cable is the only additional
hardware required to support failover communication between two Sensors.
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4
Attaching cables to the Sensor
About the Gigabit Fail-Open kit
Task
1
Plug the cable appropriate for use with your GBIC into port 4A of the active Sensor.
2
Connect the other end of the cable to port 4A of the standby Sensor.
Figure 4-2 Two I-2700s cabled for failover
About the Gigabit Fail-Open kit
The Gigabit Fail-Open kit (sold separately) minimizes the potential risks of in-line Sensor failure on
critical network links. Both copper and optical versions of the kit are available.
The Gigabit Ethernet (GE) Monitoring ports on the 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 through 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 remain in bypass mode until you manually
put them back to fail-open.
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.
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 Start Guide that
accompanies the kit. For more information, see Gigabit Optical Fail-Open Bypass Kit Guide and Gigabit
Copper Fail-Open Bypass Kit Guide.
28
McAfee® Network Security Platform
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Index
A
P
about this guide 5
ports on the I-2700 8
powering the sensor 19
C
cabling 22, 23
cabling instructions 18
cabling sensor for GBIC ports 25, 26
cabling the auxiliary port 22
cabling the console port 21
connecting to sensor 22, 24
conventions and icons used in this guide 5
R
removing GBICs 18
S
safety warnings 13
sensor responsibilities 7
ServicePortal, finding product documentation 6
D
T
documentation
audience for this guide 5
product-specific, finding 6
typographical conventions and icons 5
Technical Support, finding product information 6
Temp LED 9, 15
F
fail-open functionality 7, 11, 15, 21
H
U
using Copper SFP
removing Copper SFP 7, 12–14
using fail-closed dongles - tap mode 26
using fail-closed dongles - TAP mode 24
using fail-open hardware 15, 28
heat requirements 7, 11, 14, 23, 24, 27
I
installing GBICs 17
M
McAfee ServicePortal, accessing 6
McAfee® Network Security Platform
I-2700 Sensor Product Guide
29
700-3619A00
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