Netgear STM150 User manual

March 2009

202-10414-02

v1.1

NETGEAR, Inc.

350 East Plumeria Drive

San Jose, CA 95134 USA

ProSecure Web/Email

Security Threat

Management Appliance

STM150 Reference Manual

ii

v1.1, March 2009

Trademarks

NETGEAR and the NETGEAR logo are registered trademarks and ProSecure is a trademark of NETGEAR, Inc.

Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product

names are registered trademarks or trademarks of their respective holders.

Statement of Conditions

In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to

make changes to the products described in this document without notice.

NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit

layout(s) described herein.

Federal Communications Commission (FCC) Compliance Notice:

Radio Frequency Notice

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.

Changes or modifications not expressly approved by the Netgear could void the user's authority to operate the

equipment.

EU Regulatory Compliance Statement

The ProSecure Web/Email Security Threat Management Appliance STM150 is compliant with the following EU

Council Directives: 89/336/EEC and LVD 73/23/EEC. Compliance is verified by testing to the following standards:

EN55022 Class B, EN55024 and EN60950-1.

Bestätigung des Herstellers/Importeurs

Es wird hiermit bestätigt, daß das ProSecure Web/Email Security Threat Management Appliance STM150 gemäß der im

BMPT-AmtsblVfg 243/1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige

Betreiben einiger Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die

Anmerkungen in der Betriebsanleitung.

Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt

gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.

Certificate of the Manufacturer/Importer

It is hereby certified that the ProSecure Web/Email Security Threat Management Appliance STM150 has been

suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation

of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to

certain restrictions. Please refer to the notes in the operating instructions.

Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market

and has been granted the right to test the series for compliance with the regulations.

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iii

Voluntary Control Council for Interference (VCCI) Statement

This equipment is in the second category (information equipment to be used in a residential area or an adjacent area

thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing

Equipment and Electronic Office Machines aimed at preventing radio interference in such residential areas.

When used near a radio or TV receiver, it may become the cause of radio interference.

Read instructions for correct handling.

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2. Redistributions in binary form must reproduce the above copyright notice, this list of

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provided with the distribution.

3. The copyright holder's name must not be used to endorse or promote any products

derived from this software without his specific prior written permission.

This software is provided 'as is' with no express or implied warranties of correctness or fitness

for purpose.

v1.1, March 2009

iv

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3. All advertising materials mentioning features or use of this software must display the

following acknowledgment: “This product includes software developed by the OpenSSL

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4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to endorse or

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5. Products derived from this software may not be called "OpenSSL" nor may "OpenSSL"

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product includes software developed by the OpenSSL Project for use in the OpenSSL

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THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

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These notices must be retained in any copies of any part of this documentation and/or

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v1.1, March 2009

v

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Model Number: STM150

Publication Date: March 2009

Product Family: Threat Management Appliance

Product Name: ProSecure Web/Email Security Threat Management Appliance STM150

Home or Business Product: Business

Language: English

Publication Part Number: 202-10414-02

Publication Version Number 1.1

v1.1, March 2009

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ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

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v1.1, March 2009

Contents

About This Manual

Conventions, Formats, and Scope ................................................................................... xi

Revision History ................................................................................................................xii

Chapter 1

Introduction

What is the ProSecure Web/Email Security Threat Management Appliance STM150? .1-1

About Stream Scanning ...........................................................................................1-2

Key Features and Capabilities ........................................................................................1-2

What Can You Do with an STM150? ..............................................................................1-3

Service Registration Card with License Key(s) ..............................................................1-4

Front Panel Features ......................................................................................................1-4

Rear Panel Features ......................................................................................................1-5

Default IP Address, Login Name, and Password Location .............................................1-6

Choosing a Location for the STM150 .............................................................................1-6

Using the Rack Mounting Kit ....................................................................................1-7

Chapter 2

Provisioning Threat Management Services

Choosing a Deployment Scenario ..................................................................................2-1

Gateway Deployment ...............................................................................................2-2

Server Group ...........................................................................................................2-3

Segmented LAN Deployment. ..................................................................................2-4

Use the Installation Guide to Perform Initial Configuration .............................................2-4

Logging In to the STM150 ..............................................................................................2-5

Registering the STM150 .................................................................................................2-7

Use the Setup Wizard to Complete the Configuration ....................................................2-8

Setup Wizard Options ..............................................................................................2-8

Verifying the STM150 Installation ...................................................................................2-9

Testing Connectivity ...............................................................................................2-10

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Testing HTTP Scanning .........................................................................................2-10

What to Do Next ...........................................................................................................2-10

Chapter 3

Performing System Management Tasks

Modifying System Settings .............................................................................................3-1

Configuring Network Settings ...................................................................................3-1

Enabling Session Limits and Timeouts ....................................................................3-3

Scanning Exclusions ................................................................................................3-4

Setting the System Time ..........................................................................................3-5

Specifying the Notification Server ............................................................................3-6

Configuring SNMP Settings .....................................................................................3-9

Supported MIB Browsers .......................................................................................3-10

Backing Up and Restoring Configurations ....................................................................3-11

Backing Up the STM150 Configuration ..................................................................3-11

To Back Up the STM150 Settings ..........................................................................3-12

Restoring A Configuration ......................................................................................3-12

To restore the STM150 settings .............................................................................3-12

Resetting to Factory Defaults ......................................................................................3-13

Restarting the STM150 .................................................................................................3-13

Enabling Remote Management ....................................................................................3-14

Administering Software Updates ..................................................................................3-15

Configuring Scheduled Updates ............................................................................3-15

To configure scheduled updates ............................................................................3-16

Performing a Manual Update .................................................................................3-16

Applying a Software Update that Requires a Reboot .............................................3-17

Administering Admin Login Timeouts and Passwords ..................................................3-18

Chapter 4

Customizing Scans

Default Scan Settings .....................................................................................................4-1

Customizing Email Scanning Settings ............................................................................4-2

End User Email Notification Settings .......................................................................4-3

Email Content Filtering .............................................................................................4-5

Protecting Against Email Spam ................................................................................4-7

Configuring Distributed Spam Analysis ..................................................................4-10

Customizing Web Scanning Settings ...........................................................................4-12

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v1.1, March 2009

Configuring Web Malware Scans ...........................................................................4-13

Configuring Web Content Filtering .........................................................................4-14

Configuring Web URL Filtering ..............................................................................4-17

HTTPS Scan Settings ............................................................................................4-19

The STM150 CA Certificate ...................................................................................4-20

Certificate Management .........................................................................................4-22

Trusted Hosts .........................................................................................................4-24

Configuring FTP Scan ..................................................................................................4-25

Chapter 5

Monitoring System Performance

Viewing the System Status .............................................................................................5-2

Using Statistics and Web Usage Data ............................................................................5-3

Monitoring Security .........................................................................................................5-5

Running Diagnostics .......................................................................................................5-6

Using the Network Diagnostic Tools .........................................................................5-6

Using the Realtime Traffic Diagnostic Tools .............................................................5-7

Gathering Important Log Information .......................................................................5-7

To collect information about your STM150 ...............................................................5-7

Generate Network Statistics Report .........................................................................5-8

Using Reports to Optimize Protection and Performance ................................................5-8

Working with Logs ....................................................................................................5-8

Working with Reports .............................................................................................5-11

Using Online Support ...................................................................................................5-12

Enabling Remote Troubleshooting .........................................................................5-12

Working with Hot Fixes ..........................................................................................5-13

Sending Suspicious Files to NETGEAR for Analysis .............................................5-14

Appendix A

Default Settings and Technical Specifications

Appendix B

Related Documents

Index

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ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

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About This Manual

The NETGEAR

®

ProSecure™ Web/Email Security Threat Management Appliance STM150

Reference Manual describes how to configure and troubleshoot a ProSecure Web/Email Security

Threat Management Appliance STM150. The information in this manual is intended for readers

with intermediate computer and networking skills.

Conventions, Formats, and Scope

The conventions, formats, and scope of this manual are described in the following paragraphs:

• Typographical Conventions. This manual uses the following typographical conventions:

• Formats. This manual uses the following formats to highlight special messages:

Italic Emphasis, books, CDs, file and server names, extensions

Bold User input, IP addresses, GUI screen text

Fixed Command prompt, CLI text, code

italic URL links

Note: This format is used to highlight information of importance or special interest.

Tip: This format is used to highlight a procedure that will save time or resources.

Warning: Ignoring this type of note may result in a malfunction or damage to the

equipment.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

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v1.1, March 2009

• Scope. This manual is written for the threat management appliance according to these

specifications:

For more information about network, Internet, firewall, and VPN technologies, see the links to the

NETGEAR website in Appendix B, “Related Documents.”.

Revision History

Danger: This is a safety warning. Failure to take heed of this notice may result in

personal injury or death.

Product ProSecure Web/Email Security Threat Management Appliance

STM150

Manual Publication Date March 2009

Note: Product updates are available on the NETGEAR, Inc. website at

http://kbserver.netgear.com/products/STM150.asp.

Manual Part

Number

Manual

Version

Number

Publication

Date

Description

202-10414-01 1.0 January 2009 First publication

202-10414-02 1.1 March 2009 Update to change product name, “heuristic scan” terminology

changed to “distributed spam analysis”, URL whitelists

changed to now be case sensitive, correction of regulatory

information, and various edits to improve clarity.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

Introduction 1-1

v1.1, March 2009

Chapter 1

Introduction

This chapter provides an overview of the features and capabilities of the ProSecure Web/Email

Security Threat Management Appliance STM150. It also identifies the physical features of the

appliance and the contents of its package.

Topics discussed in this chapter include:

• “What is the ProSecure Web/Email Security Threat Management Appliance STM150?” on

page 1-1

• “Key Features and Capabilities” on page 1-2

• “What Can You Do with an STM150?” on page 1-3

• “Service Registration Card with License Key(s)” on page 1-4

• “Rear Panel Features” on page 1-5

• “Default IP Address, Login Name, and Password Location” on page 1-6

• “Choosing a Location for the STM150” on page 1-6

What is the ProSecure Web/Email Security Threat

Management Appliance STM150?

The STM150 is an appliance-based, Web security solution that protects the network perimeter

against Web-borne threats, from spyware, viruses, email, and blended threats. Ideally deployed at

the gateway, it serves as the network’s first line of defense against all types of threats and

complements firewalls, IDS/IPS, dedicated intranet security products, and endpoint antivirus/anti-

spyware software.

Powered by patent-pending stream scanning technology and backed by one of the most

comprehensive malware databases in the industry, STM150 can detect and stop all known spyware

and viruses at the gateway, preventing them from reaching your desktops and servers where

cleanup would be much more difficult.

In addition to scanning HTTP, HTTPS, FTP, SMTP, POP3, and IMAP traffic, the STM150 protects

networks against spam phishing attacks, and unwanted Web use.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

1-2 Introduction

v1.1, March 2009

About Stream Scanning

Stream scanning is based on the simple observation that network traffic travels in streams. The

STM150 scan engine starts receiving and analyzing traffic as the stream enters the network. As

soon as a number of bytes are available, scanning commences. The scan engine continues to scan

more bytes as they become available, while at the same time another thread starts outputting the

bytes that have been scanned.

This multi threaded approach, in which the receiving, scanning, and outputting processes occur

concurrently, ensures that network performance remains unimpeded. The result is that the time to

scan a file is up to five times faster than traditional antivirus solutions – a performance advantage

that is easily noticeable to the end user.

Stream scanning also enables organizations to withstand massive spikes in traffic, as in the event

of a malware outbreak.

Key Features and Capabilities

The STM150 is a true appliance that provides comprehensive protection against malware and uses

real-time scanning technology to stop spyware, viruses, and other types of malware at the gateway,

without stopping the Internet. This section highlights the STM150’s primary features as a Web and

Email security solution:

• Real-time Protection – The patent-pending stream scanning technology enables scanning of

previously undefended real-time protocols, such as HTTP. Network activities susceptible to

latency (for example, Web browsing) are no longer brought to a standstill.

• Comprehensive Protection – Provides both Web and email security, covering six major

network protocols: HTTP, HTTPS, FTP, SMTP, POP3, and IMAP. The STM uses enterprise-

class scan engines employing both signature-based and heuristic detection to stop both known

and unknown threats. Malware database contains millions of signatures of spyware, viruses,

and other malware.

• Automatic Signature Updates – Malware signatures are automatically updated on an hourly

basis. Critical new signatures are typically deployed hours before they are available from other

security vendors.

• True Appliance – Deploys in-line in a matter of minutes, anywhere in the network. Runs

automatically and unobtrusively. Simply set and forget.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

Introduction 1-3

v1.1, March 2009

What Can You Do with an STM150?

The STM150 combines robust protection against malware with ease-of-use and advanced

reporting and notification features to help you deploy and manage the device with minimal effort.

Here are some of the things that you can do with the STM150:

• Scan Network Traffic for Malware – Using the patent-pending stream scanning technology,

you can configure the STM150 to scan HTTP, SMTP, POP3, HTTPS, IMAP, and FTP

protocols. Unlike traditional batch-based scan engines that need to cache the entire file before

they can scan, this scan engine checks traffic as it enters the network, ensuring unimpeded

network performance.

• Protect the Network Instantly – the STM150 is a plug-and-play security solution that can be

instantly added to networks without requiring network reconfiguration.

• Receive Real-time Alerts and Generate Comprehensive Reports – You can configure the

STM150 to send out alerts whenever a malware or an outbreak is detected on the network.

Real-time alerts can be sent out via email, allowing you to monitor malware events wherever

you are.

By configuring the STM150 to send out malware alerts, you can isolate and clean the infected

computer before the malware incident can develop into a full blown outbreak. The STM150

also provides comprehensive reports that you can use to analyze network and malware trends.

• SNMP Support – You can enable and configure the STM150’s SNMP settings to receive

SNMP traps through a supported MIB browser.

• Automated Component Updates – Downloading components regularly is the key to

ensuring updated protection against new threats. The STM150 makes this administrative task

easier by supporting automatic malware pattern, program and engine updates.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

1-4 Introduction

v1.1, March 2009

Service Registration Card with License Key(s)

Be sure to store the license key card that came with your unit in a secure location. You will need

these keys to activate your product during the initial setup, and if you ever have to reset the unit

back to its factory defaults.

Front Panel Features

The ProSecure Web/Email Security Threat Management Appliance STM150 front panel shown

below includes two groups of RJ-45 connectors and status indicator light-emitting diodes (LEDs),

including Power and Test lights:

1. Power status

Figure 1-1

Figure 1-2

1

2

3

4

5

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

Introduction 1-5

v1.1, March 2009

2. Power on test status

3. USB ports

4. Uplink switched N-way automatic speed negotiating auto MDI/MDIX Ethernet port

5. Downlink Ethernet ports

Four switched N-way automatic speed negotiating auto MDI/MDIX Ethernet ports.

Rear Panel Features

The STM150 rear panel functions are described below:

1. Console port: To connect to a COM port on a Microsoft Windows or Linux computer; may be

used to perform the initial configuration.

2. Kensington Lock: Attach a kensington lock to prevent unauthorized removal of the unit.

3. Restart: Press to restart the unit; it does not reset the appliance to its factory defaults.

4. Reset: Use a sharp object, press and hold this button for about ten seconds until the front panel

Test light flashes to reset the unit to factory default settings.

5. Power socket.

Figure 1-3

Note: If you reset the unit, all configuration settings will be lost, the default password

will be restored, and you will need to re-register the product license.

1

2

5

4

3

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

1-6 Introduction

v1.1, March 2009

Default IP Address, Login Name, and Password Location

Check the label on the bottom of the STM150’s enclosure if you need a reminder of the following

factory default information:

Choosing a Location for the STM150

The STM150 is suitable for use in an office environment where it can be free-standing or mounted

in a standard 19-inch equipment rack. Alternatively, you can rack-mount the STM150 in a wiring

closet or equipment room. A mounting kit, containing two mounting brackets and four screws, is

provided in the STM150 package.

When deciding where to position the STM150, ensure that:

• It is accessible and cables can be connected easily.

• Cabling is away from sources of electrical noise. These include lift shafts, microwave ovens,

and air conditioning units.

• Water or moisture cannot enter the case of the unit.

• Airflow around the unit and through the vents in the side of the case is not restricted. Provide a

minimum of 25 mm or 1 inch clearance.

• The air is as free of dust as possible.

• Temperature operating limits are not likely to be exceeded. Install the unit in a clean, air-

conditioned environment. For information on the recommended operating temperatures for the

STM150, refer to Appendix A, “Default Settings and Technical Specifications.

Figure 1-4

IP Address

User Name

Password

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

Introduction 1-7

v1.1, March 2009

Using the Rack Mounting Kit

Use the provided mounting kit for the STM150 to install the appliance to a rack. The mounting

brackets supplied with the STM150 are usually installed before the unit is shipped out. If the

brackets are not yet installed, attach them using the supplied hardware.

Before mounting the STM150 in a rack, verify that:

• You have the correct screws (supplied with the installation kit)

• The rack onto which you will mount the STM150 is suitably located.

ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual

1-8 Introduction

v1.1, March 2009

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