NETGEAR STM150 - ProSecure Web And Email Threat Management... User manual

January 2009
202-10414-01
v1.0
NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134 USA
ProSecure Web/Email
Threat Manager STM150
Reference Manual

ii
1.0, January 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 B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
EU Regulatory Compliance Statement
The ProSecure Web/Email Threat Manager 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 Threat Manager 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 Threat Manager 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.

1.0, January 2009
iii
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.
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.
Additional Copyrights
AES Copyright (c) 2001, Dr Brian Gladman <[email protected]>, Worcester, UK.
All rights reserved.
TERMS
Redistribution and use in source and binary forms, with or without modification, are permitted
subject to the following conditions:
1. Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials
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.

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iv
Open SSL Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted
provided that the following conditions * are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions
and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the
following acknowledgment: “This product includes software developed by the OpenSSL
Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)”
4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to endorse or
promote products derived from this software without prior written permission. For written
permission, please contact [email protected].
5. Products derived from this software may not be called "OpenSSL" nor may "OpenSSL"
appear in their names without prior written permission of the OpenSSL Project.
6. Redistributions of any form whatsoever must retain the following acknowledgment: "This
product includes software developed by the OpenSSL Project for use in the OpenSSL
Toolkit (http://www.openssl.org/)"
THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This product includes cryptographic software written by Eric Young ([email protected]). This
product includes software written by Tim Hudson ([email protected]).
MD5 Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.
License to copy and use this software is granted provided that it is identified as the "RSA Data
Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing this
software or this function. License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data Security, Inc. MD5 Message-
Digest Algorithm" in all material mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either the merchantability of
this software or the suitability of this software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.
These notices must be retained in any copies of any part of this documentation and/or
software.

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Product and Publication Details
PPP Copyright (c) 1989 Carnegie Mellon University. All rights reserved.
Redistribution and use in source and binary forms are permitted provided that the above
copyright notice and this paragraph are duplicated in all such forms and that any
documentation, advertising materials, and other materials related to such distribution and use
acknowledge that the software was developed by Carnegie Mellon University. The name of
the University may not be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Zlib zlib.h -- interface of the 'zlib' general purpose compression library version 1.1.4, March 11th,
2002. Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler.
This software is provided 'as-is', without any express or implied warranty. In no event will the
authors be held liable for any damages arising from the use of this software. Permission is
granted to anyone to use this software for any purpose, including commercial applications,
and to alter it and redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote
the original software. If you use this software in a product, an acknowledgment in the
product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented
as being the original software.
3. This notice may not be removed or altered from any source distribution.
Jean-loup Gailly: [e-mail]; Mark Adler: [email protected]
The data format used by the zlib library is described by RFCs (Request for Comments) 1950
to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
and rfc1952.txt (gzip format)
Model Number: STM150
Publication Date: January 2009
Product Family: Threat Manager
Product Name: ProSecure Web/Email Threat Manager STM150
Home or Business Product: Business
Language: English
Publication Part Number: 202-10414-01
Publication Version Number 1.0

1.0, January 2009
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Contents
About This Manual
Conventions, Formats, and Scope ................................................................................... xi
Revision History ................................................................................................................xii
Chapter 1
Introduction
What is the ProSecure Web/Email Threat Manager 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 Configuration .....................................................................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
Optimizing 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 Heuristic Email Anti-Spam Scanning ..................................................4-10
Customizing Web Scanning Settings ...........................................................................4-12

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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 .........................................................................................................4-23
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 the 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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About This Manual
The NETGEAR®ProSecure™ Web/Email Threat Manager STM150 Reference Manual describes
how to configure and troubleshoot a ProSecure Web/Email Threat Manager 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.

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•Scope. This manual is written for the threat manager 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 Threat Manager STM150
Manual Publication Date January 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

ProSecure Web/Email Threat Manager STM150 Reference Manual
Introduction 1-1
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Chapter 1
Introduction
This chapter provides an overview of the features and capabilities of the ProSecure Web/Email
Threat Manager 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 Threat Manager 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 Threat Manager 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.

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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.

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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.

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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 Threat Manager 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
345

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Introduction 1-5
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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

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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. It is recommended that the unit be
installed 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
272-10721-01Made in Taiwan
SERIALMAC
N10947
http://192.168.1.201
user name: admin
password: password
DEFAULT ACCESS
ProSecure Web/Email Threat Manager STM150
10
This device complies with part 15 of the FCC Rules and Canada ICES-003. Operation is
subject to the following two conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may
cause undesired operation.
, 50-60Hz, 1.5A max.
Input Rating: AC 100-240V
IP Address
User Name
Password

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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.

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