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DOCSIS 3.0 Wireless Cable Modem Gatewa
FastFind Links
Getting to Know Your Gateway
SMCD3GN2 User Manual
Installing Your Gateway
Configuring Your Computer for TCP/IP
Configuring Your Gateway
SMC Networks
20 Mason
Irvine, CA. 92618
U.S.A.
Copyright © 2011 SMC Networks
All Rights Reserved
Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However,
no responsibility is assumed by SMC for its use, or for any infringements of patents or other rights of
third parties which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of SMC. SMC reserves the right to change specifications at any time
without notice
No part of this publication may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying and recording, or stored in a database or retrieval system for
any purpose without the express written permission of SMC.
Microsoft and Windows are registered trademarks of Microsoft Corporation. Apple and Macintosh are
registered trademarks of Apple, Inc. All other brands, product names, trademarks, or service marks
are property of their respective owners.
This product (Model:SMCD3GN2) includes software code developed by third parties, including
software code subject to the GNU General Public License (“GPL”) or GNU Lesser General Public
License (“LGPL”). As applicable, the terms of the GPL and LGPL, and information on obtaining
access to the GPL code and LGPL used in this product, are available to you at http://gpl.smc.com/.
The GPL code and LGPL code used in this product is distributed WITHOUT ANY WARRANTY and is
subject to the copyrights of one or more authors. For details, see the GPL Code and LGPL Code for
this product and the terms of the GPL and LGPL.
SMCD3GN2 Wireless Cable Modem Gateway User Manual
May 26, 2011
Contents
Preface...................................................................................................................... v
Key Features.............................................................................................................. vi
Document Organization..............................................................................................vii
Document Conventions..............................................................................................vii
Safety and Warnings............................................................................................vii
Typographic Conventions..........................................................................................viii
1 Getting to Know Your Gateway........................................................................... 9
Unpacking Package Contents...................................................................................10
System Requirements...............................................................................................10
Front Panel................................................................................................................11
Configuring Wireless Security...................................................................................13
Rear Panel ................................................................................................................13
Restoring Factory Defaults........................................................................................14
2 Installing Your Gateway..................................................................................... 15
Finding a Suitable Location.......................................................................................16
Connecting to the LAN..............................................................................................16
Connecting the WAN.................................................................................................17
Powering on the Gateway.........................................................................................17
3 Configuring Your Computer for TCP/IP............................................................ 18
Configuring Microsoft Windows 2000........................................................................19
Configuring Microsoft Windows XP...........................................................................20
Configuring Microsoft Windows Vista........................................................................21
Configuring Microsoft Windows 7..............................................................................23
Configuring an Apple® Macintosh® Computer...........................................................25
4 Configuring Your Gateway ................................................................................ 27
Pre-configuration Guidelines.....................................................................................28
Disabling Proxy Settings......................................................................................28
Disabling Proxy Settings in Internet Explorer ................................................28
Disabling Proxy Settings in Firefox................................................................28
Disabling Proxy Settings in Safari .................................................................29
Disabling Firewall and Security Software............................................................29
Accessing the Gateway’s Web Management............................................................30
Understanding the Web Management Interface Screens .........................................31
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SMCD3GN2 Wireless Cable Modem User Manual
Contents
Web Management Interface Menus and Submenus.................................................32
System Settings Menu.........................................................................................34
Password Settings Menu.....................................................................................35
LAN Settings Menu..............................................................................................36
Ether Switch Port Control Menu..........................................................................39
LAN Access Control Menu ..................................................................................41
Controlling LAN Access.................................................................................42
Adding and Deleting Trusted Client Stations.................................................42
Adding and Deleting Untrusted Client Stations .............................................43
QoS Settings Menu .............................................................................................44
Port Based QoS Menu...................................................................................45
CoS Settings Menu........................................................................................46
DSCP Based QoS Menu ...............................................................................48
Queue Settings Menu....................................................................................50
DSCP Remarking Menu................................................................................52
Wireless Basic Settings Menu.............................................................................54
Wireless Encryption Settings Menu.....................................................................56
WPS Setup..........................................................................................................60
MAC Filtering.......................................................................................................63
Adding and Deleting Wireless Client Stations...............................................64
Advanced Wireless Settings Menu......................................................................65
Port Forwarding Menu.........................................................................................67
Adding Predefined Services..........................................................................68
Adding Customer-Defined Services ..............................................................70
Security Settings (Firewall) Menu........................................................................73
Enabling or Disabling Firewall.......................................................................73
Configuring Access Control...........................................................................74
Configuring Special Applications...................................................................87
Configuring URL Blocking .............................................................................90
Configuring Schedule Rules..........................................................................92
Configuring Email and Syslog Alerts .............................................................93
Configuring DMZ Settings .............................................................................97
Using the Tools Settings Menu............................................................................98
Using the Reboot Menu to Reboot the Gateway.................................................99
Viewing Status Information................................................................................100
Viewing Cable Status Information .....................................................................101
Appendix A - Compliances ................................................................................. 103
Appendix B - Technical Specifications.............................................................. 104
Index..................................................................................................................... 108
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Congratulations on your purchase of your SMCD3GN2 Wireless Cable Modem Gateway.
Your SMCD3GN2 Wireless Cable Modem Gateway is the ideal all-in-one wired and wireless
solution for the home or business environment. SMC is proud to provide you with a powerful,
yet simple communication device for connecting your local area network (LAN) to the
Internet.
This user manual contains all the information you need to install and configure your new
SMCD3GN2 Wireless Cable Modem Gateway.
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Key Features
The following list summarizes the Gateway’s key features.
y Integrated, CableLabs-compliant DOCSIS 1.1/ 2.0 /3.0 cable modem
y Four 10/100/1000 Mbps Auto-Sensing LAN ports with Auto-MDI/MDIX
y High-speed 300 Mbps IEEE 802.11n Wireless Access Point
y Dynamic Host Configuration Protocol (DHCP) for dynamic IP configuration, and Domain
Name System (DNS) for domain name mapping
y One USB 2.0 port
y IEEE 802.11 b/g/n interoperability with multiple vendors
y Wireless WEP, WPA, and WPA2 encryption, Hide SSID, and MAC Filtering
y VPN pass-through support using PPTP, L2TP, or IPSec
y Advanced SPI firewall Gateway for enhanced network security from attacks over the
Internet:
– Firewall protection with Stateful Packet Inspection
– Client privileges
– Hacker prevention
– Protection from denial of service (DoS) attacks
– Network Address Translation (NAT)
y Universal Plug and Play (UPnP) enables seamless configuration of attached devices
y Quality of Service (QoS) ensures high-quality performance with existing networks
y Effortless plug-and-play installation
y Intuitive graphical user interface (GUI) configuration, regardless of operating system
y Comprehensive front panel LEDs for network status and troubleshooting
y Compatible with all popular Internet applications
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Document Organization
This document consists of four chapters and two appendixes.
y Chapter 1 - describes the contents in the Gateway package, system requirements, and
an overview of the Gateway’s front and rear panels.
y Chapter 2 - describes how to install the Gateway.
y Chapter 3 - describes how to configure TCP/IP settings on the computer you will use to
configure the Gateway.
y Chapter 4 - describes how to configure the Gateway.
y Appendix A - contains compliance information.
y Appendix B - lists the Gateway’s technical specifications.
Document Conventions
This document uses the following conventions to draw your attention to certain information.
Safety and Warnings
This document uses the following symbols to draw your attention to certain information.
Symbol Meaning Description
Note Notes emphasize or supplement important points of the main text.
Tip Tips provide helpful information, guidelines, or suggestions for performing tasks more
Warning Warnings indicate that failure to take a specified action could result in damage to the
Electric Shock Hazard This symbol warns users of electric shock hazard. Failure to take appropriate
effectively.
device.
precautions such as not opening or touching hazardous areas of the equipment could
result in injury or death.
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Preface
Typographic Conventions
This document also uses the following typographic conventions.
Convention Description
Bold Indicates text on a window, other than the window title, including menus, menu options, buttons, fields, and labels.
Italic Indicates a variable, which is a placeholder for actual text provided by the user or system. Angled brackets (< >)
screen/code Indicates text that is displayed on screen or entered by the user.
< > angled
brackets
[ ] square
brackets
{ } braces Indicates required or expected values.
| vertical bar Indicates that you have a choice between two or more options or arguments.
are also used to indicate variables.
Indicates a variable, which is a placeholder for actual text provided by the user or system. Italic font is also used to
indicate variables.
Indicates optional values.
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SMCD3GN2 Wireless Cable Modem User Manual
1 Getting to Know Your Gateway
Before you install your SMCD3GN2 Wireless Cable Modem Gateway, check the package
contents and become familiar with the Gateway’s front and back panels.
The topics covered in this chapter are:
y Unpacking Package Contents (page 10)
y System Requirements (page 10)
y Front Panel (page 11)
y Configuring Wireless Security (page 13)
y Rear Panel (page 13)
y Restoring Factory Defaults (page 14)
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SMCD3GN2 Wireless Cable Modem User Manual
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Unpacking Package Contents
Your SMCD3GN2 package should include the following items:
y One SMCD3GN2 Wireless Cable Modem Gateway
y One power cord
y One Category 5E Ethernet cable
y One CD that contains this User Manual
System Requirements
To complete the installation, you will need the following items:
y Provisioned Internet access on a cable network that supports cable modem service
y A computer with a wired network adapter with TCP/IP installed
y A Java-enabled Web browser, such as Microsoft Internet Explorer 5.5 or above
y Microsoft
®
Windows® 2000 or higher for USB driver support
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Front Panel
The front panel of your SMCD3GN2 Wireless Cable Modem Gateway contains a set of lightemitting diode (LED) indicators. These LEDs show the status of the Gateway and simplify
troubleshooting. The front panel also contains a WPS button for configuring wireless security
automatically.
Figure 1 shows the front panel of your SMCD3GN2 Wireless Cable Modem Gateway. Table
1 describes the front panel LEDs.
Figure 1. Front Panel of SMCD3GN2 Wireless Cable Modem Gateway
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Table 1. Front Panel LEDs
LED Color Description
POWER Green ON = power is supplied to the Gateway.
OFF = power is not supplied to the Gateway.
DS
DS and US Both DS and US blinking together = operator is performing maintenance.
US
ONLINE Green Blinking =.cable interface is acquiring IP, ToD, CM configuration.
ETH 1 – ETH 4
WIFI Green Blinking = data is transmitting.
Green Blinking = scanning for DS channel.
ON = synchronized on 1 channel only.
Blue ON = synchronized with more than 1 channel (DS Bond mode).
Green Blinking = ranging is in progress.
ON = ranging is complete on 1 channel only.
OFF = scanning for DS channel.
Blue ON = ranging is complete, operate with more than 1 channel (US Bond mode).
ON = Gateway is operational.
OFF = Gateway is offline.
Green Blinking = data is transmitting.
ON = connected at 10 or 100 Mbps.
OFF = no Ethernet link detected.
Blue Blinking = data is transmitting.
ON = connected at 1 Gbps.
OFF = no Ethernet link detected.
ON = Wi-Fi is enabled.
OFF = Wi-Fi is disabled.
USB Green Reserved for future use.
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Configuring Wireless Security
The front panel has a WPS button for configuring wireless security automatically. Pressing
this button for 5 seconds automatically configures wireless security. If the client device
supports WPS Push Button Configuration (PBC), press the button on the client within 60
seconds to automatically configure security on the client.
After pressing this button for 5 seconds, the WPS LED on the front panel flashes. When a
client joins the network successfully, the LED remains ON until the next WPS action or the
device reboots. If no client joins, the LED stops blinking after 4 minutes.
Rear Panel
The rear panel of your SMCD3GN2 Wireless Cable Modem Gateway contains a reset button
and the ports for attaching the supplied power adapter and making additional connections.
Figure 2 shows the rear panel components and Table 2 describes their meanings.
Figure 2. Rear View of your SMCD3GN2 Wireless Cable Modem Gateway
Table 2. SMCD3GN2 Wireless Cable Modem Gateway Rear Panel Components
Item Description
Reset button Use this button to reset the power or restore the default factory settings (see “Restoring Factory
Defaults” on the next page). This button is recessed to prevent accidental resets of the Gateway.
USB USB 2.0 high-speed port for storing configurations externally.
ETH 1 - 4 Four 10/100/1000 auto-sensing RJ-45 switch ports. Connect devices on your local area network
such as a computer, hub, or switch to these ports.
Cable Connect your coaxial cable line to this port.
Power Connect the supplied power cord to this port.
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Restoring Factory Defaults
The Reset button on the back panel can be used to return the Gateway to its factory default
settings. As a result, any changes made to the Gateway’s default settings will be lost.
If you do not have physical access to the Gateway, you can use the GUI to either power
cycle the Gateway (see “Using the Reboot Menu to Reboot the Gateway” on page 99) or
return the Gateway to its factory default settings (see “Using the Tools Settings Menu” on
page 98).
The following procedure describes how to use the Reset button to power cycle the Gateway
and return it to its original factory default settings.
1. Leave power plugged into the Gateway.
2. Find the Reset button on the back panel, then press and hold it for at least 10 seconds.
3. Release the Reset button.
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SMCD3GN2 Wireless Cable Modem User Manual
2 Installing Your Gateway
This chapter describes how to install your SMCD3GN2 Wireless Cable Modem Gateway.
The topics covered in this chapter are:
y Finding a Suitable Location (page 16)
y Connecting to the LAN (page 16)
y Connecting the WAN (page 17)
y Powering on the Gateway (page 17)
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SMCD3GN2 Wireless Cable Modem User Manual
Installing Your Gateway
Finding a Suitable Location
The SMCD3GN2 Wireless Cable Modem Gateway can be installed in any location with
access to the cable network. All of the cables connect to the rear panel of the Gateway for
better organization and utility. The LED indicators on the front panel are easily visible to
provide you with information about network activity and status.
For optimum performance, the location you choose should:
y Be close to a working AC power outlet
y Allow sufficient air flow around the Gateway to keep the device as cool as possible
y Not expose the Gateway to a dusty or wet environment
y Be an elevated location such as a high shelf, keeping the number of walls and ceilings
between the Gateway and your other devices to a minimum
y Be away from electrical devices that are potential sources of interference, such as ceiling
fans, home security systems, microwaves, or the base for a cordless phone
y Be away from any large metal surfaces, such as a solid metal door or aluminum studs.
Large expanses of other materials such as glass, insulated walls, fish tanks, mirrors,
brick, and concrete can also affect your wireless signal
Connecting to the LAN
Using an Ethernet LAN cable, you can connect the Gateway to a desktop computer,
notebook, hub, or switch. Your SMCD3GN2 Wireless supports auto-MDI/MDIX, so you can
use either a standard straight-through or crossover Ethernet cable.
1. Connect either end of an Ethernet cable to one of the four ETH ports on the rear panel of
the Gateway (see Figure 3).
Figure 3. Connecting to an ETH Port on the Gateway Rear Panel
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SMCD3GN2 Wireless Cable Modem User Manual
Installing Your Gateway
2. Connect the other end of the cable to your computer’s network-interface card (NIC) or to
another network device (see Figure 4).
Figure 4. Connecting the Gateway to the a Laptop or Desktop Computer
Connecting the WAN
To connect the Gateway to a Wide Area Network (WAN) interface:
1. Connect a coaxial cable to the port labeled Cable on the rear panel of the Gateway from a
cable port in your home or office (see Figure 2 on page 13). Use only manufactured coaxial
patch cables with F-type connectors at both ends for all connections.
2. Hand-tighten the connectors to secure the connection.
Powering on the Gateway
After making your LAN and WAN connections, use the following procedure to power on the
Gateway:
1. Connect the supplied power cord to the port on the rear panel of the Gateway (see Figure
2 on page 13).
2. Connect the other end of the power cord to a working power outlet. The Gateway powers
on automatically, the POWER LED on the front panel goes ON, and the other front panel
LEDs show the Gateway’s status (see Table 1 on page 12).
WARNING: Only use the power cord supplied with the Gateway. Using a different power cord
can damage the Gateway and void the warranty.
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SMCD3GN2 Wireless Cable Modem User Manual
3 Configuring Your Computer for TCP/IP
After you install your SMCD3GN2 Wireless Cable Modem Gateway, configure the TCP/IP
settings on a computer that will be used to configure the Gateway. This chapter describes
how to configure TCP/IP for various Microsoft Windows and Apple Macintosh operating
systems.
The topics covered in this chapter are:
y Configuring Microsoft Windows 2000 (page 19)
y Configuring Microsoft Windows XP (page 20)
y Configuring Microsoft Windows Vista (page 21)
y Configuring Microsoft Windows 7 (page 23)
y Configuring an Apple
®
Macintosh® Computer (page 25)
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows 2000
Use the following procedure to configure your computer if your computer has Microsoft
Windows 2000 installed.
1. On the Windows taskbar, click Start, point to Settings, and then click Control Panel.
2. In the Control Panel window, double-click the Network and Dial-up Connections icon. If
the Ethernet adapter in your computer is installed correctly, the Local Area Connection
icon appears.
3. Double-click the Local Area Connection icon for the Ethernet adapter connected to the
Gateway. The Local Area Connection Status dialog box appears (see Figure 5).
Figure 5. Local Area Connection Status Window
4. In the Local Area Connection Status dialog box, click the Properties button. The Local
Area Connection Properties dialog box appears.
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol (TCP/IP)
is checked. Then select Internet Protocol (TCP/IP) and click the Properties button.
6. Click Obtain an IP address automatically to configure your computer for DHCP.
7. Click the OK button to save this change and close the Local Area Connection Properties
dialog box.
8. Click OK button again to save these new changes.
9. Restart your computer.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows XP
Use the following procedure to configure a computer running Microsoft Windows XP with the
default interface. If you use the Classic interface, where the icons and menus resemble
previous Windows versions, perform the procedure under “Configuring Microsoft Windows
2000” on page 19.
1. On the Windows taskbar, click Start, click Control Panel, and then click Network and
Internet Connections.
2. Click the Network Connections icon.
3. Click Local Area Connection for the Ethernet adapter connected to the Gateway. The
Local Area Connection Status dialog box appears.
4. In the Local Area Connection Status dialog box, click the Properties button (see Figure 6).
The Local Area Connection Properties dialog box appears.
Figure 6. Local Area Connection Status Window
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol (TCP/IP)
is checked. Then select Internet Protocol (TCP/IP) and click the Properties button. The
Internet Protocol (TCP/IP) Properties dialog box appears.
6. In the Internet Protocol (TCP/IP) Properties dialog box, click Obtain an IP address
automatically to configure your computer for DHCP. Click the OK button to save this
change and close the Internet Protocol (TCP/IP) Properties dialog box.
7. Click the OK button again to save your changes.
8. Restart your computer.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows Vista
Use the following procedure to configure a computer running Microsoft Windows Vista with
the default interface. If you use the Classic interface, where the icons and menus resemble
previous Windows versions, perform the procedure under “Configuring Microsoft Windows
2000” on page 19.
1. On the Windows taskbar, click Start, click Control Panel, and then select the Network
and Internet icon.
2. Click View Networks Status and tasks and then click Management Networks
Connections.
3. Right-click the Local Area Connection icon and click Properties.
4. Click Continue. The Local Area Connection Properties dialog box appears.
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol
(TCP/IPv4) is checked. Then select Internet Protocol (TCP/IPv4) and click the
Properties button (see Figure 7). The Internet Protocol Version 4 Properties dialog box
appears.
Figure 7. Local Area Connection Properties Window
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
6. In the Internet Protocol Version 4 Properties dialog box, click Obtain an IP address
automatically to configure your computer for DHCP (see Figure 8).
Figure 8. Internet Protocol Properties Window
7. Click the OK button to save your changes and close the dialog box.
8. Click the OK button again to save your changes.
Figure 9. Local Area Connection Status Window
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows 7
Use the following procedure to configure a computer running Microsoft Windows 7.
1. In the Start menu search box, type: ncpa.cpl
Figure 10. Typing ncpa.cpl in the Start Menu Box
The Network Connections List appears.
Figure 11. Example of Network Connections List
2. Right-click the Local Area Connection icon and click Properties.
3. In the Networking tab, click either Internet Protocol Version 4 (TCP/IPv4) or Internet
Protocol Version 6 (TCP/IPv6), and then click Properties.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 12. Local Area Network Connection Properties Dialog Box
4. In the properties dialog box, click Obtain an IP address automatically to configure your
computer for DHCP (see Figure 13).
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 13. Properties Window
5. Click the OK button to save your changes and close the dialog box.
6. Click the OK button again to save your changes.
Configuring an Apple® Macintosh® Computer
The following procedure describes how to configure TCP/IP on an Apple Macintosh running
Mac OS 10.2. If your Apple Macintosh is running Mac OS 7.x or later, the steps you perform
and the screens you see may differ slightly from the following. However, you should still be
able to use this procedure as a guide to configuring your Apple Macintosh for TCP/IP.
1. Pull down the Apple Menu, click System Preferences, and select Network.
2. Verify that the NIC connected to your SMCD3GN2 is selected in the Show field.
3. In the Configure field on the TCP/IP tab, select Using DHCP (see Figure 14).
4. Click Apply Now to apply your settings and close the TCP/IP dialog box.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 14. Selecting Using DHCP in the Configure Field
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SMCD3GN2 Wireless Cable Modem User Manual
4 Configuring Your Gateway
This chapter describes how to use a Web browser to configure the Gateway.
The topics covered in this chapter are:
y Pre-configuration Guidelines (page 28)
y Accessing the Gateway’s Web Management (page 30)
y Understanding the Web Management Interface Screens (page 31)
y Web Management Interface Menus (page 32)
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Gateway
Pre-configuration Guidelines
Before you configure the Gateway, observe the guidelines in the following sections.
Disabling Proxy Settings
Disable proxy settings in your Web browser. Otherwise, you will not be able to view the
Gateway’s Web-based configuration pages.
Disabling Proxy Settings in Internet Explorer
The following procedure describes how to disable proxy settings in Internet Explorer 5 and
later.
1. Start Internet Explorer.
2. On your browser’s Tool menu, click Options. The Internet Options dialog box appears.
3. In the Internet Options dialog box, click the Connections tab.
4. In the Connections tab, click the LAN settings button. The Local Area Network (LAN)
Settings dialog box appears.
5. In the Local Area Network (LAN) Settings dialog box, uncheck all check boxes.
6. Click OK until the Internet Options window appears.
7. In the Internet Options window, under Temporary Internet Files, click Settings.
8. For the option Check for newer versions of stored pages, select Every time I visit the
webpage.
9. Click OK until you close all open browser dialog boxes.
Disabling Proxy Settings in Firefox
The following procedure describes how to disable proxy settings in Firefox.
1. Start Firefox.
2. On your browser’s Tools menu, click Options. The Options dialog box appears.
3. Click the Advanced tab.
4. In the Advanced tab, click the Network tab.
5. Click the Settings button.
6. Click Direct connection to the Internet.
7. Click the OK button to confirm this change.
SMCD3GN2 Wireless Cable Modem User Manual
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Configuring Your Gateway
Disabling Proxy Settings in Safari
The following procedure describes how to disable proxy settings in Safari.
1. Start Safari.
2. Click the Safari menu and select Preferences.
3. Click the Advanced tab.
4. In the Advanced tab, click the Change Settings button.
5. Choose your location from the Location list (this is generally Automatic).
6. Select your connection method. If using a wired connection, select Built-in Ethernet. For
wireless, select Airport.
7. Click the Proxies tab.
8. Be sure each proxy in the list is unchecked.
9. Click Apply Now to finish.
Disabling Firewall and Security Software
Disable any firewall or security software that may be running on your computer. For more
information, refer to the documentation for your firewall.
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SMCD3GN2 Wireless Cable Modem User Manual
Accessing the Gateway’s Web Management
After configuring your computer for TCP/IP and performing the pre-configuration guidelines
on the previous page, you can now easily configure the Gateway from the convenient Webbased management interface. From your Web browser (Microsoft Internet Explorer version
5.5 or later), you will log in to the interface to define system parameters, change password
settings, view status windows to monitor network conditions, and control the Gateway and its
ports.
To access your SMCD3GN2 Wireless Cable Modem Gateway’s web-based management
screens, use the following procedure.
1. Launch a Web browser.
Note: The cable modem does not have to be online to configure the Gateway.
Configuring Your Gateway
2. In the browser address bar, type
http://192.168.0.1 and press the Enter key. For example:
The Login User Password screen appears (see Figure 15)
Figure 15. Login User Password Screen
3. In the Login User Password screen, type the default login username cusdamin and the
default password password. Your service provider may customize the login, so please
check with your services provided for correct login information. Both the username and
password are case sensitive.
4. Click the Login button to access the Gateway. The Status page appears, showing
connection status information about the Gateway.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Gateway
Understanding the Web Management Interface Screens
The left side of the management interface contains a menu bar you use to select menus for
configuring the Gateway. When you click a menu, information and any configuration settings
associated with the menu appear in the main area of the interface (see Figure 16). If the
displayed information exceeds what can be shown in the main area, scroll bars appear to
the right of the main area so you can scroll up and down through the information.
Home and
Logout Buttons
Menu bar
Main Area
Help, Apply, and
Cancel Buttons
Figure 16. Main Areas on the Web Management Interface
Some menus have submenus associated with them. If you click a menu that has submenus,
the submenus appear below the menu. For example, if you click the System menu, the
submenu Password Settings appears below the System menu (see Figure 17).
Figure 17. Example of System Submenu
The top-right side of the page contains a Home button that displays the Home (Status) page
and a Logout button for logging out of the Web management interface.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Gateway
The bottom right side of the screen contains three buttons:
y Help displays online help
y Apply click this button to save your configuration changes to the displayed page
y Cancel click this button to discard any configuration changes made to the current page
Web Management Interface Menus and Submenus
Table 3 describes the menus and submenus in the Web management interface.
Table 3. Web Management Interface Menus and Submenus
Note: Some menus and submenus described in this chapter may not apply to your
Gateway. Please check your Gateway’s GUI to see which items are available.
Menu and Submenus Description See Page
System Lets you enable or disable uPnP and HNAP. The submenu lets you:
System > Password Settings
LAN Lets you configure settings for your private LAN.
LAN > Ether Switch Control
LAN > Ether Access Control
QoS Lets you enable Quality of Service (QoS) settings. If you enable QoS, the following
QoS > Port
QoS > COS
QoS > DSCP
QoS > Queue
QoS > DSCP Remarking
Wireless Lets you configure basic wireless settings, such as enabling or disabling wireless
Wireless > Encryption
Wireless > WPS
Wireless > MAC Filtering
Wireless > Advanced Settings
• Define the password for logging in to the Gateway’s Web interface.
• Specify fixed speed and duplex settings, and disable individual LAN ports.
• Allow all EtherLAN client stations to access the Internet through the Gateway,
allow certain trusted EtherLAN client stations to access the Internet through the
Gateway, or deny certain trusted EtherLAN client stations from accessing the
Internet through the Gateway.
submenus become available for:
• Prioritizing performance of the four Gateway LAN ports.
• Defining four queues to which the Class of Service (CoS) is mapped.
• Defining the QoS class queue to which the customized DSCP is mapped.
• Specifying whether QoS behavior runs with strict or weighted priority.
• Defining the DSCP remarking action and mode.
operation, selecting wireless mode, and configuring the Service Set Identifier
(SSID) and channel settings. Submenus let you:
• Use encryption to protect the data transmitted across your wireless network
• Enable or disable Wi-Fi Protected Setup (WPS).
• Allow all wireless client stations or only trusted PCs to connect over a wireless
connection.
• Configure advanced wireless settings for the Gateway.
34
35
36
39
41
44
45
46
48
50
52
54
56
60
63
65
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Table 3. Web Management Interface Menus and Submenus
Note: Some menus and submenus described in this chapter may not apply to your
Gateway. Please check your Gateway’s GUI to see which items are available.
Menu and Submenus Description See Page
NAT > Port Forwarding Configure predefined and custom port forwarding settings to let Internet users
Firewall Lets you enable or disable the Gateway’s firewall. Submenus let you:
Firewall > Access Control
Firewall > Special Application
Firewall > URL Blocking
Firewall > Schedule Rule
Firewall > Email/Syslog Alert
Firewall > DMZ
Tools Lets you reset the Gateway and return it to its factory default settings. The submenu
Tools > Reboot
Status Shows the connection status of the Gateway interfaces, firmware, hardware
access local services such as the Web Server or FTP server at your local site.
• Block traffic at the Gateway's LAN interfaces from accessing the Internet.
• Detect port triggers for detect multiple-session applications and allow them to
pass the firewall.
• Block access to certain Web sites from local computers by entering either a full
URL address or keywords of the Web site.
• Define schedule rules that work with the Gateway’s URL blocking feature.
• Send email notifications or add entries to the syslog when traffic is blocked,
attempts are made to intrude onto the network, and local computers try to
access block URLs.
• Configure a local client computer for unrestricted two-way Internet access by
defining it as a Virtual DMZ host.
lets you:
• Reboot the Gateway while keeping all overrides you made to the device’s factory
default settings.
version numbers, illegal attempts to access your network, and information about
DHCP client PCs current connected to the Gateway. The submenu lets you:
67
73
74
87
90
92
93
97
98
99
100
Status > Cable Status
• View cable initialization procedures, and cable downstream and upstream
status.
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Configuring Your Gateway
System Settings Menu
The System Settings menu lets you enable or disable Universal Plug and Play (uPnP) and
Home Network Administration Protocol (HNAP). To access the System Settings menu, click
System in the menu bar. Figure 18 shows an example of the menu and Table 4 describes
the setting you can select.
Figure 18. System Settings Menu
Table 4. System Settings Menu Option
Option Description
Enable UPnP Configures your Gateway as a uPnP Internet gateway. UPnP allows for dynamic connectivity between devices on
a network. A UPnP-enabled device like your Gateway can obtain an IP address, advertise its capabilities, learn
about other connected UPnP devices and then communicate directly with those devices. The same device can
end its connection cleanly when it wishes to leave the UPnP community. The intent of UPnP is to support zeroconfiguration, "invisible" networking of devices including intelligent appliances, PCs, printers, and other smart
devices using standard protocols.
• Check = uPnP is enabled on the Gateway. (default)
• Uncheck = uPnP is disabled on the Gateway.
Enable HNAP Configures your Gateway as a HNAP device. HNAP allows your Gateway to be configured and managed by
remote entities, such as Network Magic or any software application that discovers and manages network devices.
• Check = HNAP is enabled on the Gateway. . (default)
• Uncheck = HNAP is disabled on the Gateway
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Password Settings Menu
The Password Settings menu lets you change the default username and password used to
log in to the Gateway’s Web interface.
The Password Settings menu also lets you change the number of minutes of inactivity that
can occur before your Web management session times out automatically. The default
setting is 10 minutes.
To access the Password Settings menu, click System in the menu bar and then click the
Password Settings submenu. Figure 19 shows an example of the menu and Table 5
describes the settings you can select.
Figure 19. Password Settings Menu
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Table 5. Password Settings Menu Options
Option Description
Current Password Enter the current case-sensitive login password. For security purposes, every typed character
New Password Enter the new case-sensitive login password you want to use. A password can contain up to
Re-Enter Password for Verification Enter the same case-sensitive login password you typed in the New Password field. For
Idle Time Out Your Web management interface sessions timeout after 10 minutes of idle time. To change
appears as a dot (y). The default password is not shown for security purposes.
32 alphanumeric characters. Spaces count as password characters. For security purposes,
every typed character appears as a dot (y).
security purposes, every typed character appears as a dot (y).
this duration, enter a new timeout value.
LAN Settings Menu
IP addresses are close to being used up and thus very hard to get. One solution to this
problem is "private" IP addresses. Private IP addresses are ranges of IP addresses set
aside expressly for use by a company or other entity internally. Private IP addresses are
non-routable and, therefore, cannot be used to connect directly to the Internet.
Some of the advantages of private IP addresses include:
y Increased security, since private IP addresses are not routable across the Internet
y You conserve the world-wide pool of IP addresses
y You do not have to register or pay for these IP addresses in any way
Using the LAN Settings menu, you can define private LAN IP addresses. To access the LAN
Settings menu, click LAN in the menu bar. Figure 20 shows an example of the menu and
Table 6 describes the settings you can select.
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Figure 20. LAN Settings Menu
Table 6. LAN Settings Menu Options
Option Description
Private LAN IP
IP Address IP address of the Gateway’s private LAN settings. Default IP address is 192.168.0.1. if you change this
setting, the Gateway reboots after displaying a message.
IP Subnet Mask Subnet mask of the Gateway’s private LAN settings. Default subnet mask is 255.255.255.0.
Domain Name Domain name of the Gateway’s private LAN settings.
Enable DHCP Server Enables or disables the DHCP server to allow automatic allocation of IP addresses to LAN client PCs.
Checked = DHCP server is enabled. (default)
Unchecked = DHCP server is disabled.
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Option Description
Lease Time Amount of time a DHCP network user is allowed connection to the Gateway with their current dynamic
IP address. Default is One Week. This option is available when Enable DHCP Server is checked.
Assign DNS Manually Enables or disables the DHCP server to allow automatic allocation of primary and secondary IP
addresses for DSN servers on the LAN.
• Checked = use static IP addresses for primary and secondary DNS servers. If checked, enter the IP
addresses of the primary and secondary DNS server in the Primary DNS and Secondary DNS fields.
• Unchecked = allocate IP addresses for primary and secondary DNS servers automatically. (default)
Primary DNS Static IP address of the primary DNS server. This option is available when Assign DNS Manually is
checked.
Secondary DNS Static IP address of the secondary DNS server. This option is available when Assign DNS Manually is
checked.
Private IP Address Pool
Start IP Starting IP address range for the pool of allocated for private IP addresses.
End IP Ending IP address range for the pool of allocated for private IP addresses.
Private LAN IP
IP Address IP address of the Gateway’s private LAN settings. Default IP address is 192.168.0.1. if you change this
setting, the Gateway reboots after displaying a message.
IP Subnet Mask Subnet mask of the Gateway’s private LAN settings. Default subnet mask is 255.255.255.0.
Domain Name Domain name of the Gateway’s private LAN settings.
Enable DHCP Server Enables or disables the DHCP server to allow automatic allocation of IP addresses to LAN client PCs.
• Checked = DHCP server is enabled. (default)
• Unchecked = DHCP server is disabled.
Lease Time Amount of time a DHCP network user is allowed connection to the Gateway with their current dynamic
IP address. Default is One Week. This option is available when Enable DHCP Server is checked.
Assign DNS Manually Enables or disables the DHCP server to allow automatic allocation of primary and secondary IP
addresses for DSN servers on the LAN.
• Checked = use static IP addresses for primary and secondary DNS servers. If checked, enter the IP
addresses of the primary and secondary DNS server in the Primary DNS and Secondary DNS fields.
• Unchecked = allocate IP addresses for primary and secondary DNS servers automatically. (default)
Primary DNS Static IP address of the primary DNS server. This option is available when Assign DNS Manually is
checked.
Secondary DNS Static IP address of the secondary DNS server. This option is available when Assign DNS Manually is
checked.
Private IP Address Pool
Start IP Starting IP address range for the pool of allocated for private IP addresses.
End IP Ending IP address range for the pool of allocated for private IP addresses.
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Ether Switch Port Control Menu
By default, the Gateway LAN ports are enabled to auto-negotiate the highest supported
speed and appropriate duplex mode. If these settings prevent the Gateway from
successfully connecting with other devices, you can use the Ether Switch Port Control menu
to configure the Gateway to use fixed speed and duplex settings. The Ether Switch Port
Control menu also let you disable the individual LAN ports. For your convenience, each port
can be configured independently of the other LAN ports on the Gateway.
To access the Ether Switch Control menu, click LAN in the menu bar and then click the
Ether Switch Control submenu in the menu bar. Figure 21 shows an example of the menu.
Figure 21. Ether Switch Port Control Menu
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The following procedure describes how to change the settings in the Ether Switch Port
Control menu.
1. To change a port from auto-negotiation to a fixed speed and duplex setting:
a. Uncheck the Auto check box for the port.
b. Under Speed (10/100/1000), click the radio that corresponds to the fixed speed you
want to use for that port.
c. Under the Mode H/F column, leave the check mark for full-duplex mode or uncheck it
for half-duplex mode.
2. To disable a port, regardless of the auto-negotiation and duplex settings, uncheck Enable
for the port.
3. Click Apply.
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LAN Access Control Menu
Using the LAN Access Control menu, you can:
y Allow all EtherLAN client stations to access the Internet through the Gateway. This is the
default setting.
y Allow certain trusted EtherLAN client stations to access the Internet through the
Gateway. You use the add up to 16 trusted clients.
y Deny certain trusted EtherLAN client stations from accessing the Internet through the
Gateway. You use the add up to 16 untrusted clients.
To access the LAN Access Control menu, click LAN in the menu bar and then click the
Ether Access Control submenu in the menu bar. Figure 22 shows an example of the menu.
Figure 22. LAN Access Control Menu
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Controlling LAN Access
By default, All EtherLAN LAN stations is selected at the top of the menu. This setting
allows all client stations to access the Internet through the Gateway. To restrict LAN access,
click one of the following radio buttons and click Apply:
y Trusted PC List = restricts Internet access through the Gateway to client stations in the
Lan Trusted Table. To add client station to this table, see “Adding and Deleting Trusted
Client Stations”, below.
y Untrusted PC list = prevents client stations in the Lan Untrusted Table from accessing
the Internet through the Gateway. To add client stations to this table, see “Adding and
Deleting Untrusted Client Stations” on page 43.
Adding and Deleting Trusted Client Stations
To restrict Internet access through the Gateway to certain trusted EtherLAN client stations,
define the client stations as trusted clients. Using this procedure you can define up to 16
trusted client stations.
1. Click Trusted PC list at the top of the menu.
2. To add client stations that the Gateway automatically learned on the network, perform the
following steps under Auto-Learned Lan Devices:
a. Click a client station that the Gateway learned automatically.
b. Under Trusted?, click Y.
c. Click Add. The client station is added to the Lan Trusted Table.
d. To add more auto-learned client stations (up to 16), repeat steps 2a through 2c.
3. To manually add trusted client stations, perform the following steps under Manually-
Added Lan Devices:
a. Under Device Name, enter a name for the device.
b. Under MAC Address, enter the MAC address of the device.
c. Under Trusted?, click Y.
d. Click Add to add the client station to the Lan Trusted Table.
e. To manually add more client stations (up to 16), repeat steps 3a through 3d.
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4. To delete client stations from the Lan Trusted Table, click the radio button corresponding
to the client station you want to delete and click the Delete button. A precautionary
message does not appear before deleting a client station.
5. To enforce this policy, click Trusted PC list at the top of the menu.
6. When you finish, click Apply.
Adding and Deleting Untrusted Client Stations
To prevent certain trusted EtherLAN client stations from accessing the Internet through the
Gateway, define the client stations as untrusted clients. Using this procedure you can define
up to 16 untrusted client stations
1. Click Untrusted PC list at the top of the menu.
2. To add client stations that the Gateway automatically learned on the network, perform the
following steps under Auto-Learned Lan Devices:
a. Click a client station that the Gateway learned automatically.
b. Under Trusted?, click N.
c. Click Add to add the client station to the Lan Untrusted Table.
d. To add more auto-learned client stations, repeat steps 2a through 2c.
3. To manually add client stations, perform the following steps under Manually-Added Lan
Devices:
a. Under Device Name, enter the name of the device.
b. Under MAC Address, enter the MAC address of the device.
c. Under Trusted?, click N.
d. Click Add to add the client station to the Lan Untrusted Table.
e. To add more client stations manually, repeat steps 3a through 3d.
4. To delete client stations from the untrusted list, in the Lan Untrusted Table. click the radio
button corresponding to the client station you want to delete and click the Delete button. A
precautionary message does not appear before deleting an untrusted client station.
5. To enforce this policy, click Untrusted PC list at the top of the menu.
6. When you finish, click Apply.
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QoS Settings Menu
Quality of Service (QoS) refers to a collection of techniques for identifying data whose
delivery across the network is time sensitive, and managing its delivery through both
bandwidth allocation and prioritization schemes
Using the QoS Settings menu, you can enable the Gateway’s QoS module to provide
guarantees on the ability of the network to deliver predictable results. To access the QoS
menu, click QOS in the menu bar. Figure 23 shows an example of the menu.
By default, QoS is enabled. To disable the Gateway’s QoS module, uncheck Enable QOS
Module and click Apply. To disable the Gateway’s QoS module, uncheck Enable QOS
Module and click Apply.
When the Gateway’s QoS module is enabled, the following submenus appear under QOS in
the menu bar:
y Port - lets you configure the priority queue to which the switch port is mapped. See page
45.
y COS - lets you define four queues to which the CoS is mapped. See page 46.
y DSCP - lets you define the QoS class queue to which the customized DSCP is mapped.
See page 48.
y Queue - lets you specify whether QoS behavior runs with strict or weighted priority. See
page 50.
y DSCP Remarking - lets you define the DSCP remarking action and mode. See page 52.
Figure 23. QoS Settings Menu
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Port Based QoS Menu
The Port Based QoS menu lets you enable or disable the Gateway’s port-based QoS
setting. To access the Port Based QoS menu, click QOS in the menu bar and then click the
Port submenu in the menu bar. Figure 24 shows an example of the menu.
y To enable the Gateway’s port-based QoS setting, check Enable Port Based QoS and
click Apply.
y To disable the Gateway’s port-based QoS setting, uncheck Enable Port Based QoS
and click Apply.
Note: The Port submenu is not available in the menu bar if Enable QOS Module is not
checked in the QoS Settings menu (see page 39).
Figure 24. Port Based QoS Menu
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CoS Settings Menu
Given that there will always be points in the network where multiple traffic streams merge or
where network links will change speed and capacity, it is important to move traffic on the
basis of relative importance. Without CoS prioritization, less important traffic can consume
network bandwidth and slow down or halt the delivery of more important traffic. For example,
without CoS, most traffic received by the Gateway is forwarded with the same priority it had
upon entering the Gateway. In many cases, such traffic is ‘‘normal’’ priority and competes for
bandwidth with all other normal-priority traffic, regardless of its relative importance to your
requirements. CoS helps to keep the most important network traffic moving at an acceptable
speed, regardless of current bandwidth usage. This means you can manage available
bandwidth so that the switch transmits the most important traffic first.
The CoS Settings menu lets you configure a CoS priority of 0 through 7 for an outbound
packet. When the packet is then sent to a port, the CoS priority determines which outbound
queue the packet uses. After configuring CoS priority for outbound packets, use this menu to
map the classes of service to the Gateway’s four ports.
To access the CoS Settings menu, click QOS in the menu bar and then click the CoS
submenu in the menu bar. Figure 25 shows an example of the menu.
Note: The COS submenu is not available in the menu bar if Enable QOS Module is not
checked in the QoS Settings menu (see page 39).
Figure 25. CoS Settings Menu
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To define CoS settings:
1. Check Enable QoS Class based on CoS.
2. For each class of service, assign a queue number from 0 to 3. Higher priority values are
evaluated as being of higher importance than lower priority values.
3. Under Port Default CoS, map the Gateway’s four ports to the classes of service you
defined in the previous step.
– CoS setting from 0 to 3 = normal priority. Packets in this queue leave the port after
the high-priority queue is emptied.
– CoS setting from 4 to 7 = high priority. Packets in this queue leave the port first.
4. Click Apply.
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DSCP Based QoS Menu
The DSCP Based QoS menu lets you classify and prioritize traffic using DSCP tags. DSCP
allows the Gateway to determine how traffic classes should be prioritized. Using the DSCP
Based QoS menu, you can use DSCP to provide different levels of service to conforming
and non-conforming traffic by appropriately selecting the DSCP values in this menu. The
Gateway uses the Hierarchical Token Bucket queuing algorithm, which divides the 64
possible DSCP code values into 8 queues.
Table 7 shows the actual queuing.
Table 7. Queuing for DSCP-Based QoS
Name Precedence DSCP Range Priority
Routing (default)
Priority
Immediate
Flash
Flash Override
Critical
Internetwork Control
Network Control
000 (0) 000000(0) – 000111 (7) 8
001 (1) 001000 (8) – 001111 (15) 7
010 (2) 010000 (16) – 010111 (23) 6
011 (3) 011000 (24) – 011111 (31) 5
100 (4) 100000 (32) – 100111 (39) 4
101 (5) 101000 (40) – 101111 (47) 3
110 (6) 111000 (48) – 110111 (55) 2
111 (7) 111000 (56) – 111111 (63 1
To access the DSCP Based QoS menu, click QOS in the menu bar and then click the DSCP
submenu in the menu bar. Figure 26 shows an example of the menu.
Note: The DSCP submenu is not available in the menu bar if Enable QOS Module is not
checked in the QoS Settings menu (see page 39).
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Figure 26. DSCP Based QoS Menu
To define DSCP-based QoS settings:
1. Check Enable DHCP Based QoS.
2. For each index, enter a DSCP value from 0 to 63.
3. Under Queue, select a queue (from 0 to 3) you want to map to this DSCP value. Higher
priority values are evaluated as being of higher importance than lower priority values.
4. To define DSCP-based QoS values for other queues, repeat steps 2 and 3.
5. Click Apply.
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Queue Settings Menu
The Queue Settings menu lets you configure QoS behavior as either strict priority or
weighted priority.
y Strict priority – allows delay-sensitive data such as voice to be sent before packets in
other queues.
y Weighted priority – lets you assign each queue with a certain weight indicating the
amount of guaranteed capacity, with high priority packets served before any low priority
packets.
To access the Queue Settings menu, click QOS in the menu bar and then click the Queue
submenu in the menu bar. Figure 27 shows an example of the menu.
Note: The Queue submenu is not available in the menu bar if Enable QOS Module is not
checked in the QoS Settings menu (see page 39).
Figure 27. Queue Settings Menu
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By default, the Gateway uses strict priority. To change to weighted priority:
1. For Queue Type, select Weighted Priority. The options in Figure 28 appear.
Figure 28. Weighted Priority Options
2. For Weight Base, select a queue weight to ensure that some sets of queues get higher
thresholds than others. Queue weight directs the Gateway to set the queue thresholds
proportionately. Choices are 8 or 10. Queues with a weight of 10 are longer than those with
a queue weight of 8.
3. For each Gateway queue, enter a weight. Each weight corresponds to a percentage of
consumed bandwidth, as shown in the % of Bandwidth column.
4. When you finish, click Apply.
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DSCP Remarking Menu
The DSCP Remarking menu lets you configure the Gateway’s DSCP remarking mode and
actions.
To access the Queue Settings menu, click QOS in the menu bar and then click the DSCP
Remarking submenu in the menu bar. Figure 29 shows an example of the menu.
Note: The DSCP Remarking submenu is not available in the menu bar if Enable QOS
Module is not checked in the QoS Settings menu (see page 39).
Figure 29. DSCP Remarking Menu
To configure DSCP remarking settings:
1. Check Enable DSCP Remarking.
2. Complete the options in the menu and refer to Table 8.
3. When you finish, click Apply.
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Table 8. DSCP Remarking Options
Option Description
Dscp remarking mode Lets you select the DSCP remarking mode that the Gateway is to use. Choices are:
• Map frame priority to AF code points = select this option for Quality of Service configurations that use
assured forwarding (AF) code points to mark packets. AF guarantees a certain amount of bandwidth to
an AF class and allows access to extra bandwidth, if available. (default)
• Map frame priority to CS code points = select this option for Quality of Service configurations that use
class selector (CS) code points to mark packets. CS provides code points that can be used for
backward compatibility with IP Precedence. IP Precedence is a legacy technology that the Gateway
supports for backwards compatibility.
Request a remarking action when DSCP equals one of the following CPs
Expedited Forwarding
Code Point
Assured Forwarding
Code Points
Class Selector Code
Points
Zero When checked, lets the Gateway request a remarking action if DSCP equals zero. By default, this option is
Others When checked, lets the Gateway request a remarking action if DSCP equals a non-zero value. By default,
Expedited forwarding provides a low-loss, low-latency, low-jitter, and assured bandwidth service.
Applications such as VoIP, video, and other time sensitive applications require a robust network treatment
like expedited forwarding. When checked, the Gateway requests a remarking action if DSCP equals an
expedited forwarding code point. By default, this option is not checked.
Assured forwarding defines a method by which packets can be given different forwarding assurances.
Traffic can be divided into different classes and then each class given a certain percentage of bandwidth.
For example, one class could have 50% of the available link bandwidth, another class could have 30%,
and another 20% of the bandwidth. When checked, the Gateway requests a remarking action if DSCP
equals an assured forwarding code point. By default, this option is not checked.
Class Selector code points are code points that can be used for backward compatibility with IP Precedence
models. When checked, lets the Gateway request a remarking action if DSCP equals a class selector code
point. By default, this option is checked, but does not take effect until the OSPF Status changes to
ENABLE.
checked, but does not take effect until the OSPF Status changes to ENABLE.
this option is checked, but does not take effect until the OSPF Status changes to ENABLE.
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Wireless Basic Settings Menu
The Wireless Basic Settings menu lets you configure basic wireless settings, such as:
y Enabling or disabling the Gateway’s wireless operation
y Selecting a wireless mode
y Configuring the primary SSID
y Configuring channel settings
To access the Wireless Basic Settings menu, click Wireless in the menu bar. Figure 30
shows an example of the menu and Table 9 describes the settings you can select.
Figure 30. Wireless Basic Settings Menu
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Table 9. Wireless Basic Settings Menu Options
Option Description
Wireless ON/OFF Enables or disables the Gateway’s wireless operation.
• ENABLE = Gateway’s wireless operation is active. Selecting this option activates the options in this
menu. Clicking Apply displays the submenus below the Wireless menu.
• DISABLE = Gateway’s wireless operation is not active. Selecting this option deactivates the options in
this menu. Clicking Apply hides the submenus below the Wireless menu. (default)
Wireless Mode If wireless operation is enabled for the Gateway, this option selects the wireless mode used by the
Gateway. Choices are:
• 11B/G Mixed = use this setting if you have a combination of IEEE 802.11b and IEEE 802.11g devices
on your network.
• 11B Only = use this setting if you have only IEEE 802.11b devices on your network or want to limit your
network to IEEE 802.11b devices.
• 11G Only = use this setting if you have only IEEE 802.11g devices on your network or want to limit your
network to IEEE 802.11g devices.
• 11N Only = use this setting if you have only IEEE 802.11n devices on your network or want to limit your
network to IEEE 802.11n devices.
• 11G/N Mixed = use this setting if you have a combination of IEEE 802.11g and IEEE 802.11n devices
on your network.
• 11B/G/N Mixed = use this setting if you have a combination of IEEE 802.11b, IEEE 802.11g, and IEEE
802.11n devices on your network. (default)
SSID setting SSID is the network name shared among all devices in a wireless network. The SSID must be identical for
all devices in the wireless network. It is case-sensitive and must not exceed 32 alpha-numeric characters,
which may be any keyboard character. Be sure this setting is the same for all devices in your wireless
network.
Primary SSID The primary SSID can be hidden or configured for Wi-Fi Multimedia (WMM) mode.
• Hidden = when checked, hides the SSID. Use this setting to block illegal connections. Users cannot
reconnect automatically or manually to a wireless network that uses a hidden SSID. The wireless
network that uses a hidden SSID does not appear in the Microsoft Windows Wireless Network
Connection window.
• In-service = when checked, broadcasts the Gateway’s SSID.
• WMM Mode = when checked, enables WMM. Enabling WMM can help control latency and jitter when
transmitting multimedia content over a wireless connection.
Channel Select the appropriate channel from the list provided to correspond with your network settings, between 1
and 11 (in North America). Default is Auto, which selects the appropriate channel automatically. All devices
in your wireless network must use the same channel to work properly.
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Wireless Encryption Settings Menu
Using the Wireless Encryption Settings menu, you can protect the data transmitted across
your wireless network. The same encryption keys you specify here must also be configured
on your other wireless client devices on your wireless network.
To access the Wireless Encryption Settings menu, click Wireless in the menu bar and then
click the Encryption submenu. Figure 31 shows an example of the menu and Table 10
describes the settings you can select.
Note: The Encryption submenu is not available in the menu bar if wireless operation is
disabled in the Wireless Basic Settings menu (see page 54).
Figure 31. Wireless Encryption Settings Menu
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Table 10. Wireless Encryption Settings Menu Options
Option Description
SSID Network name of the of the primary wireless carrier. This field can be changed by administrators, but
not by users.
Security Mode Selects the security mode used to protect transmissions across the wireless network.
• None = no security is used over the wireless network.
• WEP = Wired Equivalency Privacy encryption is used over the wireless network. Select this option
if your wireless adapters support WEP but not WPA-Personal. WEP provides basic security, but is
not as secure as WPA-Personal. If you select WEP, select the options in Figure 32 and Table 11.
• WPA-Personal = select this option if your wireless adapters support WPA-Personal. This
encryption method is superior to WEP and offers two cipher types, TKIP and AES, with dynamic
encryption keys. If you select WPA-Personal, select the options in Figure 33 and Table 12.
(default)
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Figure 32. WEP Options
Table 11. WEP Options
Option Description
WEP Key Length Level of WEP encryption applied to all WEP keys. Choices are 64-bit (10 hex digits) and 128-bit (26
hex digits).
WEP Key 1 – WEP Key 4 Fields for entering up to four WEP keys manually. Alternatively, you can click the Generate Keys
button to generate these keys automatically.
Default WEP Key Specifies which of the four WEP keys the Gateway is to use as its default.
Authentication Authentication used. Choices are:
• Open System = clients can only associate to the wireless access point using Open Option.
(default)
• Shared Key = all wireless stations share the same secret key.
• Automatic = clients can associate to the wireless access point using Open System or Shared Key.
Passphrase A sequence of words or text that can be used to automatically generate WEP keys. A passphrase
can consist of from 8 to 63 ASCII characters. You can use upper-case, lower-case, and numeric
characters to from your passphrase. A Generate Keys button next to this field lets the Gateway
generate a passphrase based on the characters typed in this field.
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Figure 33. WPA_Personal Options
Table 12. WPA_Personal Options
Option Description
WPA Mode Lets you select the WPA mode they want to use. Choices are:
• WPA-PSK = select this setting if your access points and wireless clients support WPA-Pre-Shared
Key (PSK) Authentication.
• WPA2-PSK = select this setting if your access points and wireless clients support WPA2-PSK
Authentication.
• Auto (WPA-PSK or WPA2-PSK) = select this setting if your access points and wireless clients
support either WPA-PSK or WPA2-PSK. (default)
Cipher type Algorithm encryption to be used. Choices are:
• TKIP = automatic encryption with WPA-PSK; requires pre-shared key.
• AES = automatic encryption with WPA2-PSK; requires pre-shared key.
• TKIP and AES = uses both TKIP and AES cipher types; requires pre-shared key. (default)
Group Key Update Interval Number of seconds that instructs the Gateway how often it should change the encryption keys.
Pre-shared Key Shared secret between the Gateway and access points and wireless clients. Please check whether a
Pre-Authentication Enables secure fast roaming, without noticeable signal latency. By default, this option is disabled.
Usually the security level is higher if you set the period shorter to change encryption keys more often.
Default value is 3600 seconds (6 minutes). Type 0 to disable group key update interval.
default pre-shared key is required.
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WPS Setup
Using the WPS Setup menu, you can enable or disable WPS. WPS is a standard for easy
and secure wireless network set up and connections.
The advantages of WPS are:
y WPS automatically configures the network name (SSID) and WPA security key for the
Gateway and for the access point and wireless devices that join the network.
y You do not need to know the network name and security keys or passphrases to use
WPS to join a wireless network.
y No one can guess your security keys or passphrase because they are generated
randomly.
y WPS uses the Extensible Authentication Protocol (EAP), which is a strong authentication
protocol used in WPA2.
The disadvantages of WPS are:
y Unless all the Wi-Fi devices on the network are WPS-compatible, you cannot take
advantage of the ease of securing the network.
y Not all wireless equipment supports WPS.
y If your wireless devices do not support WPS, it can be hard to join a network that was
set up with WPS because the wireless network name and security key are random
sequences of letters and numbers.
To access the WPS Setup menu, click Wireless in the menu bar and then click the WPS
submenu. Figure 34 shows an example of the menu. Using the WPS Config drop-down list,
select the appropriate option to enable or disable WPS setup.
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Figure 34. WPS Setup Menu
By default, WPS is disabled. If you select ENABLE and click Apply, the options in Figure 35
are displayed. Table 13 describes the options shown.
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Figure 35. WPS Setup Menu with WPS Config Enabled
Table 13. WPS Summary and WPS Progress Options
Option Description
WPS Config Enables or disables the Gateway’s WPS setup.
• ENABLE = Gateway’s WPS setup is available. (default)
• DISABLE = Gateway’s WPS setup is unavailable.
WPS Summary
WPS Current Status A read-only field that shows whether WPS is currently being used.
WPS Configured A read-only field that whether WPS has been configured.
AP PIN A read-only field that shows the personal identification number (PIN) for the access point.
WPS Progress
WPS mode Determines whether WPS can be configured using a PIN or the WPS button on the front panel of the
Gateway.
• PIN = requires you to enter a PIN in the WPS Setup menu to configure WPS.
• PBC = Push Button Configuration. Lets you use the WPS button on the front panel of the Gateway
to configure WPS.
WPS PIN If PIN was selected for WPS mode, enter the PIN required to enable WPS. The PIN must be 8 alpha-
numeric characters long.
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MAC Filtering
Using the MAC Filtering menu, you can define up to 16 MAC address filters to prevent PCs
from sending outgoing TCP/UDP traffic to the WAN via their MAC addresses. This is useful
because a specific NIC’s MAC address never changes, unlike its IP address, which can be
assigned by a DHCP server or hard-coded to various addresses over time.
The MAC Filtering menu allows wireless client stations to connect over a wireless
connection in two ways:
y By allowing all wireless station access.
y By allowing only trusted PCs.
To access the MAC Filtering menu, click Wireless in the menu bar and then click the MAC
Filtering submenu. Figure 36 shows an example of the menu and Table 14 describes the
settings you can select.
Note: The MAC Filtering submenu is not available in the menu bar if wireless operation is
disabled in the Wireless Basic Settings menu (see page 54).
Figure 36. MAC Filtering Menu
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Table 14. MAC Filtering Options
Option Description
SSID Network name of the of the primary wireless carrier.
MAC Filtering Mode Determines which wireless client stations can connect to the Gateway. The choices are:
• Allow- All = all wireless client stations can connect to the Gateway. (default)
• Allow = allow only the wireless client stations in the MAC filter table to connect to the Gateway.
• Deny = no wireless client stations can connect to the Gateway.
Wireless Control List Shows the device name and MAC address of up to 16 devices that you manually added to the MAC filter
table. To delete a device, click the radio button to the left of the device you want to delete and click the
Delete button. A precautionary message does not appear before deleting the MAC address, so be sure
you do not need the MAC address before deleting it.
Auto-Learned Wireless
Devices
Manually-Added
Wireless Devices
Shows the wireless devices whose presence the Gateway has automatically learned.
Enter a unique name and MAC address of the wireless devices that you want to manually add to the
Wireless Control List (MAC filter table). Click Add to add the device to the Wireless Control List.
Adding and Deleting Wireless Client Stations
To allow wireless client stations to access the Internet through the Gateway, use the
following procedure to define up to 16 wireless client stations.
1. To add wireless client stations that the Gateway automatically learned on the network,
perform the following steps under Auto-Learned Lan Devices:
a. Click a wireless client station that the Gateway learned automatically.
b. Click Add. The wireless client station is added to the Wireless Control List.
c. To add more auto-learned wireless client stations (up to 16), repeat steps 1a and 1b.
2. To manually add wireless client stations, perform the following steps under Manually-
Added Wireless Devices:
a. Under Device Name, enter a unique name for the device (that is, a name that does not
already appear in the Wireless Control List).
b. Under MAC Address, enter the MAC address of the device.
c. Click Add to add the wireless client station to the Wireless Control List.
d. To manually add more wireless client stations (up to 16), repeat steps 2a through 2c.
3. To delete wireless client stations from the Wireless Control List,. click the radio button
corresponding to the wireless client station you want to delete and click the Delete button.
A precautionary message does not appear before deleting a wireless client station.
4. When you finish, click Apply.
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Advanced Wireless Settings Menu
Using the Advanced Wireless Settings menu, you can configure advanced wireless settings
for the Gateway.
To access the Advanced Wireless Settings menu, click Wireless in the menu bar and then
click the Advanced Wireless Settings submenu. Figure 37 shows an example of the menu
and Table 15 describes the settings you can select.
Note: The Advanced Wireless Settings submenu is not available in the menu bar if wireless
operation is disabled in the Wireless Basic Settings menu (see page 54).
Figure 37. Wireless Advanced Settings Menu
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Table 15. Wireless Advanced Settings Options
Option Description
BG Protection Mode This mode is a protection mechanism that prevents collisions among 802.11b/g modes. Choices are:
• Auto = BG protection mode goes on or off automatically as needed.
• Always-On = BG protection mode is always on.
• Always-Off = BG protection mode is always off. (default)
IGMP Snooping Enables or disables the Gateway from forwarding multicast traffic intelligently.
• Enable = Gateway listens to IGMP membership reports, queries, and leave messages to identify the
Gateway ports that are members of multicast groups. Multicast traffic will only be forwarded to ports
identified as members of the specific multicast group or groups.
• Disable = Gateway does not analyze all IGMP packets. (default)
WMM Configuration Displays a screen for selecting WMM settings for your wireless access point(s).
HT Physical Mode
Operating Mode Lets you select between Mixed Mode and Green Field.
• Mixed Mode = provides backward compatibility with IEEE 802.11n/a/g/b devices. (default)
• Green Field = used for pure network of 802.11n access points and clients, taking full advantage of the
high-throughput capabilities of the 11n MIMO architecture
Channel BandWidth Select a channel bandwidth of 20 or 20/40.
• 20 = allows only single-channel operation (e.g., 20 MHz).
• 20/40 = allows both single channel operation (20 MHz) and the wider bandwidth operation (40 MHz) by
using two or more adjacent (contiguous channels). A 20/40 BSS is a wireless network that allows a
wider bandwidth operation mode. (default)
Guard Interval The guard interval is the period in nanoseconds that the Gateway listens between packets. Choices are:
• Long = 800 ns guard interval.
• Short = 400 ns guard interval (default)
MCS Modulation Coding Scheme (MCS) is a specification of PHY parameters consisting of modulation order
(BPSK, QPSK, 16-QAM, 64-QAM) and FEC code rate (1/2, 2/3, 3/4, 5/6). MCS is used in the Gateway to
define 32 symmetrical settings. MCS provides for potentially greater throughput. High throughput data
rates are a function of MCS, bandwidth, and guard interval. Default is auto.
Reverse Direction Grant
(RDG)
Speeds up data transmission between the Gateway and 802.11n access points and clients by allowing
wireless workstations to send/receive data simultaneously, without contending for shared medium. Default
is enable.
Extension Channel Defines a second 20-MHz channel. 40-MHz stations can use this channel in addition to using the control
channel simultaneously.
Aggregation
Enables or disables aggregation of multiple MSDUs in one MPDU. Default is disable.
MSDU(A_MSDU)
Auto Block ACK Enables or disables Auto Block ACL function. Default is enable.
Decline BA Request Enables or disables the BA request function. Default is disable.
Other
HT TxStream Select 1 or 2 from the pull-down menu. Default is 2.
HT RxStream Select 1 or 2 from the pull-down menu. Default is 2.
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Port Forwarding Menu
The Port Forwarding menu lets you configure the Gateway to provide port-forwarding
services that let Internet users access predefined services such as HTTP (80), FTP (20/21),
and AIM/ICQ (5190) as well as custom-defined services. You perform port forwarding by
redirecting the WAN IP address and the service port to the local IP address and service port.
You can configure a maximum of 100 predefined and custom-defined services.
To access the Port Forwarding menu, click NAT in the menu bar and then click the Port
Forwarding submenu in the menu bar. Figure 38 shows an example of the menu.
Figure 38. Port Forwarding Menu
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Adding Predefined Services
Using the following procedure, you can select well-known services and specify the LAN host
IP address(es) that will provide the service to the Internet.
1. In the Port Forwarding menu, uncheck Disable Port Forwarding Function if it is checked.
2. Click the Add button below the Predefined Service Table. The Predefined Service menu
appears (see Figure 39).
3. Complete the fields in the Predefined Service menu (see Table 16).
4. Click Apply. (Or click Back to return to the Port Forwarding menu or Cancel to cancel any
selections you made.) If you clicked Apply, the predefined service is added to the
Predefined Service Table.
5. To configure additional predefined services (up to 100, including customer-defined
services), repeat steps 2 through 4.
6. To change the settings for a predefined service, click the radio button to the left of the
service you want to change and click the Edit button. When the Predefined Service menu
appears, edit the settings as necessary (see Table 16) and click Apply.
7. To delete a predefined service, click the radio button to the left of the service you want to
delete and click the Delete button. No precautionary message appears before you delete a
predefined service.
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Figure 39. Predefined Service Menu
Table 16. Predefined Service Menu Options
Option Description
Service List of predefined services from which you can choose.
LAN Server IP IP address of the LAN PC or server that is running the service.
Remote IPs Forwards the service to any remote IP address, one remote IP address, or a range of remote IP
addresses.
• If you select one remote IP address, enter the IP address in the Start IP field.
• If you select a range of remote IP addresses, enter the starting IP address in the Start IP field and
the ending IP address in the End IP field.
Start IP To forward to:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP address
range in the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Enter the ending IP address in the remote IP address range. This field is unavailable if the Gateway
is configured for any remote IP addresses or for a single remote IP address.
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Adding Customer-Defined Services
Using the following procedure, you can define special application services you want to
provide to the Internet. The following example shows how to set port forwarding for a Web
server on an Internet connection, where port 80 is blocked from the WAN side, but port 8000
is available.
Name: Web Server
Type: TCP
LAN Server IP: 192.168.0.100
Remote IPs: Any (allow access to any public IP)
Public Port: 8000
Private Port: 80
With this configuration, all HTTP (Web) TCP traffic on port 8000 from any IP address on the
WAN side is redirected through the firewall to the Internal Server with the IP address
192.168.0.100 on port 80.
To create your own customized services:
1. In the Port Forwarding menu, uncheck Disable Port Forwarding Function if it is checked.
2. Click the Add button below the Customer Defined Service Table. The Customer Defined
Service menu appears (see Figure 40).
3. Complete the fields in the Customer Defined Service menu (see Table 17).
4. Click Apply. (Or click Back to return to the Port Forwarding menu or Cancel to cancel any
selections you made.) If you clicked Apply, the customer-defined service is added to the
Customer Defined Service Table.
5. To configure additional customer-defined services (up to 100, including predefined
services), repeat steps 2 through 4.
6. To change the settings for a customer-defined service, click the radio button to the left of
the service you want to change and click the Edit button. When the Customer Defined
Service menu appears, edit the settings as necessary (see Table 17) and click Apply.
7. To delete a customer-defined service, click the radio button to the left of the service you
want to delete and click the Delete button. No precautionary message appears before you
delete a customized service.
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Figure 40. Customer Defined Service Menu
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Table 17. Customer Defined Service Page Options
Option Description
Name Name for identifying the custom service. The name is for reference purposes only.
Type The type of protocol. Choices are TCP, UDP, and TCP/UDP. Default is TCP.
LAN Server IP IP address of the LAN PC or server that is running the service.
Remote IPs Forwards the service to any remote IP address, one remote IP address, or a range of remote IP
addresses.
• If you select one remote IP address, enter the IP address in the Start IP field.
• If you select a range of remote IP addresses, enter the starting IP address in the Start IP field and the
ending IP address in the End IP field.
Start IP To specify:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP address range in
the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Ending IP address in the remote IP address range. This field is unavailable if the Gateway is configured for
any remote IP addresses or a single remote IP address.
Public IP Ports A single public IP port or a range of public IP ports on which the service is provided. If necessary, contact
the application vendor for this information.
• If you select a single public port, enter the port number in the Start Public Port field.
• If you select a range of public ports, enter the starting port number in the Start Public Port field and the
ending port number in the End Public Port field.
Start Public Port Starting number of the port on which the service is provided.
End Public Port Ending number of the port on which the service is provided. This field is unavailable if the Gateway is
configured for a single public IP port.
Private Ports Numbers of the ports whose traffic the Gateway forwards to the LAN. If there is a range of ports, enter the
starting private port here and check Enable Port Range. The Gateway automatically calculates the end
private port. The LAN PC server listens for traffic/data on this port (or these ports).
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Security Settings (Firewall) Menu
The Security Settings (Firewall) menu lets you enable or disable the Gateway’s firewall.
If you enable the Gateway firewall module, the following submenus appear in the menu bar:
y Configure access control settings ⎯ see page 74
y Configure the Gateway for special applications ⎯ see page 76
y Set up URL blocking ⎯ see page 90
y Schedule rules ⎯ see page 92
y Receive email or syslog alert notifications ⎯ see page 93
y Configure a local client computer as a local DMZ for unrestricted two-way Internet
access ⎯ see page 97
Enabling or Disabling Firewall
The Security Settings (Firewall) menu provides an option for enabling or disabling the
Gateway’s firewall setting. To access the Security Settings (Firewall) menu, click Firewall in
the menu bar. Figure 41 shows an example of the menu.
By default, the Gateway’s firewall settings are enabled. To disable the firewall, uncheck
Enable Firewall Module and click Apply. Disabling the firewall hides the submenus below
the Firewall menu.
Figure 41. Security Settings (Firewall) Menu
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Configuring Access Control
The Access Control menu lets you enable access control to block traffic at the Gateway's
LAN interfaces from accessing the Internet.
To access the Access Control menu, click Firewall in the menu bar and then click the
Access Control submenu in the menu bar.
Note: The Access Control submenu is not available in the menu bar if Enable Firewall
Module is disabled in the Security Settings (Firewall) menu (see page 73).
By default, the Gateway does not block attempts to access the LAN from the Internet. To
enable access control, check Enable Access Control if it is unchecked and click Apply.
When Access Control is enabled, you can configure up to 35 predefined and customerdefined filtering tables.
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Figure 42. Access Control Menu
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Adding Predefined Access Rules
Using the following procedure, you can select a well-known service and specify whether to
block all LAN hosts, a single LAN host, or a range of LAN hosts.
1. In the Access Control menu, check Enable Access Control if it is not checked and click
the Apply button. The remaining fields in the menu become available.
2. Under Predefined Service Table, click the Add button. The Predefined Access Rules
menu appears (see Figure 43).
3. Complete the fields in the Predefined Access Rules menu (see Table 18).
4. Click Apply. (Or click Back to return to the Access Control menu or Cancel to cancel any
selections you made.) If you clicked Apply, the rule for the predefined access rule is added
to the Predefined Service Table.
5. To configure additional access control rules for predefined services (up to 35, including
access rules for customer-defined services), repeat steps 2 through 4. When you finish,
click Apply in the Access Control menu to save your settings.
6. To change the rule for a predefined rule, click the radio button to the left of the rule you
want to change and click the Edit button. When the Predefined Access Rules menu
appears, edit the settings as necessary (see Table 18) and click Apply. Click Apply in the
Access Control menu to save your settings.
7. To delete a predefined rule, click the radio button to the left of the rule you want to delete
and click the Delete button. No precautionary message appears before you delete a rule.
Click Apply in the Access Control menu to save your settings.
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Figure 43. Predefined Access Rules Menu
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Table 18. Predefined Access Rules Menu Options
Option Description
Service List of predefined services from which you can choose.
Remote IPs Allows access to any remote IP address, one remote IP address, or a range of remote IP
addresses.
• If you select one remote IP address, enter the IP address in the Start IP field.
• If you select a range of remote IP addresses, enter the starting IP address in the Start IP
field and the ending IP address in the End IP field.
Start IP To forward to:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP
address range in the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Enter the ending IP address in the remote IP address range. This field is unavailable if the
Gateway is configured for any remote IP addresses or for a single remote IP address.
Local IPs Lets you specify any local IP addresses, a single local IP address, or a range of local IP
addresses to which the access rule is applied.
• If you select one local IP address, enter the IP address in the Start IP field.
• If you select a range of local IP addresses, enter the starting IP address in the Start IP field
and the ending IP address in the End IP field.
Start IP To apply the predefined access rule to:
• A single local IP address, enter the local IP address.
• A range of local IP addresses, enter the starting IP address here and the ending IP address
range in the next field.
This field is unavailable if the Gateway is configured for any local IP addresses.
End IP Ending IP address in the local IP address range to which the access rule will be applied. This
field is unavailable if the Gateway is configured for any local IP address or a single local IP
address.
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Adding Customer-Defined Access Rules
Using the following procedure, you can define your own rules regarding the type of traffic
allowed from the Internet to the public LAN site.
1. In the Access Control menu, check Enable Access Control if it is not checked and click
the Apply button. The remaining fields in the menu become available.
2. Under Customer Defined Service Table, click the Add button. The Customer Defined
Access Rules menu appears (see Figure 44).
3. Complete the fields in the Customer Defined Access Rules menu (see Table 19).
4. Click Apply. (Or click Back to return to the Access Control menu or Cancel to cancel any
selections you made.) If you clicked Apply, the rule for the customer-defined rule is added
to the Customer Defined Service Table.
5. To configure additional access control rules for customer-defined services (up to 35,
including access rules for predefined services), repeat steps 2 through 4. When you finish,
click Apply in the Access Control menu to save your settings.
6. To change the rule for a customer-defined service, click the radio button to the left of the
rule you want to change and click the Edit button. When the Customer-Defined Access
Rules menu appears, edit the settings as necessary (see Table 19) and click Apply. Click
Apply in the Access Control menu to save your settings.
7. To delete a customer-defined rule, click the radio button to the left of the rule you want to
delete and click the Delete button. No precautionary message appears before you delete a
rule. Click Apply in the Access Control menu to save your settings.
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Figure 44. Customer Defined Access Rules Menu
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Table 19. Customer Defined Access Rules Menu Options
Option Description
Name Name for identifying the custom service. The name is for reference purposes only.
Type The type of protocol you want to access rule. Choices are TCP, UDP, and TCP/UDP. Default
is TCP.
Remote IPs Lets you apply the access rule to any remote IP addresses, a single remote IP address, or a
range of remote IP addresses.
• If you select one remote IP address, enter the IP address in the Start IP field.
• If you select a range of remote IP addresses, enter the starting IP address in the Start IP
field and the ending IP address in the End IP field.
Start IP To specify:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP
address range in the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Ending IP address in the LAN IP address range to which the access rule will be applied. This
field is unavailable if the Gateway is configured for any LAN IP address or a single LAN IP
address.
Local IPs Lets you specify any local IP addresses, a single local IP address, or a range of local IP
addresses to which the access rule is applied.
• If you select one local IP address, enter the IP address in the Start IP field.
• If you select a range of local IP addresses, enter the starting IP address in the Start IP field
and the ending IP address in the End IP field.
Start IP To apply the predefined access rule to:
• A single local IP address, enter the local IP address.
• A range of local IP addresses, enter the starting IP address here and the ending IP address
range in the next field.
This field is unavailable if the Gateway is configured for any local IP addresses.
End IP Ending IP address in the local IP address range to which the access rule will be applied. This
field is unavailable if the Gateway is configured for any local IP address or a single local IP
address.
From Port Starting port number on which the access rule will be applied. If necessary, contact the
application vendor for this information.
To Port Ending port number on which the access rule will be applied. If necessary, contact the
application vendor for this information.
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Adding Predefined Filters
Using the following procedure, you can add predefined filters that block certain types of
traffic from the LAN side of the Gateway to the Internet side of the Gateway .
1. In the Access Control menu, check Enable Access Control if it is not checked and click
the Apply button. The remaining fields in the menu become available.
2. Under Predefined Filtering Table, click the Add button. The Predefined Filter menu
appears (see Figure 45).
3. Complete the fields in the Predefined Filter menu (see Table 20).
4. Click Apply. (Or click Back to return to the Access Control menu or Cancel to cancel any
selections you made.) If you clicked Apply, the predefined filter is added to the Predefined
Filtering Table.
5. To define additional filters for access control (up to 35, including customer-defined filters),
repeat steps 2 through 4. When you finish, click Apply in the Access Control menu to save
your settings.
6. To change the settings for a predefined filter, click the radio button to the left of the service
you want to change and click the Edit button. When the Predefined Filter menu appears,
edit the settings as necessary (see Table 20) and click Apply. Click Apply in the Access
Control menu to save your settings.
7. To delete a predefined filter, click the radio button to the left of the filter you want to delete
and click the Delete button. No precautionary message appears before you delete a
predefined filter. Click Apply in the Access Control menu to save your settings.
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Figure 45. Predefined Filter Menu
Table 20. Predefined Filter Menu Options
Option Description
Service List of predefined services from which you can choose.
LAN IPs Lets you apply the filter to any LAN IP addresses, a single LAN IP address, or a range of LAN
IP addresses.
• If you select one LAN IP address, enter the IP address in the Start IP field.
• If you select a range of LAN IP addresses, enter the starting IP address in the Start IP field
and the ending IP address in the End IP field.
Start IP To apply the predefined filter to:
• A single local IP address, enter the local IP address.
• A range of local IP addresses, enter the starting IP address here and the ending IP address
range in the next field.
This field is unavailable if the Gateway is configured for any local IP addresses.
End IP Ending IP address in the local IP address range to which the filter will be applied. This field is
unavailable if the Gateway is configured for any local IP address or a single local IP address.
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Adding Customer-Defined Filters
Using the following procedure, you can add customer-defined filters that block certain types
of traffic from the LAN side of the Gateway to the Internet side of the Gateway.
1. In the Access Control menu, check Enable Access Control if it is not checked and click
the Apply button. The remaining fields in the menu become available.
2. Under Customer Defined Filtering Table, click the Add button. The Customer Defined
Filter menu appears (see Figure 46).
3. Complete the fields in the Customer Defined Filter menu (see Table 21).
4. Click Apply. (Or click Back to return to the Access Control menu or Cancel to cancel any
selections you made.) If you clicked Apply, the customer-defined filter is added to the
Customer Defined Filtering Table.
5. To define additional filters for access control (up to 35, including predefined filters), repeat
steps 2 through 4. When you finish, click Apply in the Access Control menu to save your
settings.
6. To change the settings for a customer-defined filter, click the radio button to the left of the
filter you want to change and click the Edit button. When the Customer Defined Filter
menu appears, edit the settings as necessary (see Table 21) and click Apply. Click Apply
in the Access Control menu to save your settings.
7. To delete a customer-defined filter, click the radio button to the left of the filter you want to
delete and click the Delete button. No precautionary message appears before you delete a
customer-defined filter. Click Apply in the Access Control menu to save your settings.
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Figure 46. Customer Defined Filter Menu
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Table 21. Customer Defined Filter Menu Options
Option Description
Name Name for identifying the custom service. The name is for reference purposes only.
Type The type of protocol you want to filter. Choices are TCP, UDP, and TCP/UDP. Default is TCP.
LAN IPs Lets you apply the filter to any LAN IP addresses, a single LAN IP address, or a range of LAN
IP addresses.
• If you select one LAN IP address, enter the IP address in the Start IP field.
• If you select a range of LAN IP addresses, enter the starting IP address in the Start IP field
and the ending IP address in the End IP field.
Start IP To specify:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP
address range in the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Ending IP address in the LAN IP address range to which the filter will be applied. This field is
unavailable if the Gateway is configured for any LAN IP address or a single LAN IP address.
From Port Starting port number on which the filter will be applied. If necessary, contact the application
vendor for this information.
To Port Ending port number on which the filter will be applied. If necessary, contact the application
vendor for this information.
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Configuring Special Applications
Using the Special Application menu, you can configure the Gateway to detect port triggers
for detect multiple-session applications and allow them to pass the firewall. For special
applications, besides the initial communication session, there are multiple related sessions
created during the protocol communications. Normally, a normal treats the triggered
sessions as independent sessions and blocks them. However, the Gateway can co-relate
the triggered sessions with the initial session and group them together in the NAT session
table. As a result, you need only specify which protocol type and port number you want to
track, as well as some other related parameters. In this way, the Gateway can pass the
special applications according to the supplied information.
Assume, for example, that to use H.323 in a Net Meeting application, a local client starts a
session A to a remote host. The remote host uses session A to communicate with the local
host, but it also could initiate another session B back to the local host. Since there is only
session A recorded in the NAT session table when the local host starts the communication,
session B is treated as an illegal access from the outside and is blocked. Using the Special
Application menu, you can configure the Gateway to co-relate sessions A and B and
automatically open the port for the incoming session B.
To display the Special Applications menu, click Firewall in the menu bar and then click the
Special Application submenu. Figure 47 shows an example of the menu.
The maximum number of allowed triggers is 20. To enable the special application function,
check the Enable Triggering checkbox and click Apply. To disable it, uncheck the Enable
Triggering checkbox and click Apply.
Note: The Special Application submenu is not available in the menu bar if Enable Firewall
Module is disabled in the Security Settings (Firewall) menu (see page 73).
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Figure 47. Special Application Menu
To enable port triggering:
1. In the Special Application menu, check Enable Triggering if it is unchecked and click the
Apply button. The Trigger Table becomes available.
2. Click the Add button below Trigger Table. The Trigger menu appears (see Figure 48).
3. Complete the fields in fields Trigger menu (see Table 22).
4. Click Apply. (Or click Back to return to the Trigger menu or Cancel to cancel any
selections you made.) If you clicked Apply, the trigger is added to the Trigger Table.
5. To configure additional triggers (up to 20), repeat steps 1 through 4. When you finish, click
Apply in the Special Applications menu to save your settings.
6. To change the settings for a trigger, click the radio button to the left of the trigger you want
to change and click the Edit button. When the Trigger menu appears, edit the settings as
necessary (see Table 22) and click Apply. Click Apply in the Special Application menu to
save your settings.
7. To delete a trigger, click the radio button to the left of the trigger you want to delete and
click the Delete button. No precautionary message appears before you delete a trigger.
Click Apply in the Special Application menu to save your settings.
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Figure 48. Trigger Menu
Table 22. Trigger Menu Options
Option Description
Name Name for identifying the trigger. The name is for reference purposes only.
Type The type of protocol you want to use with the trigger. Choices are TCP and UDP. Default is
Trigger Port From and To port ranges of the special application. For example, to track the H.323 protocol,
Target Port From and To port ranges for the target port listening for the special application.
Interval Specify the interval between 50 and 30000 b etween two continuous sessions. If the inter val
IP Replacement Select the IP replacement according to the application. Some appl ications embed the s ource
Allow sessions initiated from/to the
rd
3
host
TCP. For example, to track the H.323 protocol, the protocol type should be TCP.
the From and To ports should be 1720.
exceeds this time interval setting, the sessions are considered to be unrelated.
host's IP in the datagram and normal NAT would n ot tr anslate the IP address in the datagram.
To make sure the network address translation is complet e, IP replacement is necessary for
these special applications, such as H.323.
Decide whether the sessions can start from/to a third host. To prevent hacker attacks from a
third host, this feature usually is not allowed. However, for some spec ial applications , such as
MGCP in a VOIP application, a session initiated from a third host is permitted. For example,
assume Client A is trying to make a phone call to a host B. Client A tries to comm unicate with
the Media Gateway Controller (MGC) first and prov ides host B's number to MGC. Then MGC
checks its own database to find B and communicate with B to provide B the information about
A. B uses this information to communicate directly to A. So initially, A is talking to MGC, but
the final step has B initiating a ses sion to A. If the third-party host-initiated session is not
allowed in this example, the whole communication fails.
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Configuring URL Blocking
Using the URL Blocking menu, you can configure the Gateway to block access to certain
Web sites from local computers by entering either a full URL address or keywords of the
Web site. the Gateway examines all the HTTP packets to block the access to those
particular sites. This feature can be used to protect children from accessing inappropriate
Web sites. You can block up to 50 sites.
Using URL blocking, you can also make up to 10 computers exempt from URL blocking and
have full access to all Web sites at any time.
To display the URL Blocking menu, click Firewall in the menu bar and then click the URL
Blocking submenu. Figure 49 shows an example of the menu.
Note: The URL Blocking submenu is not available in the menu bar if Enable Firewall
Module is disabled in the Security Settings (Firewall) menu (see page 73).
Tip: The Gateway provides a Schedule Rules feature that lets you configure URL blocking for
certain days, if desired. For more information, see “Configuring Schedule Rules” on page 92.
Figure 49. URL Blocking Menu
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To enable URL blocking:
1. In the URL Blocking menu, check Enable Keyword Blocking if it is not checked and click
Apply.
2. To exempt a computer from URL blocking, enter the computer’s MAC address in the Add
exempted PC field and click the Add Trusted Host button. The MAC address you entered
appears in the Exempted PC List.
– Repeat this step for each additional computer (up to 10) you want to make exempt
from URL blocking.
– To remove a computer from being exempted, use the Delete or Delete All buttons
next to the field to delete selected or all MAC addresses.
3. To block a site, click in the Keyword/Domain Name field, enter keyword or domain name
of the site you want to block, and click Add Keyword. The keyword or domain appears in
the Blocked Keyword/Domain List.
– Repeat this step for each additional keyword or domain (up to 50) you want to make
exempt from URL blocking.
– To remove a site from being blocked by a keyword or domain name, use the Delete
or Delete All buttons next to the field to delete selected or all keywords and/or
domains.
4. Click Apply.
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Configuring Schedule Rules
Schedule rules work with the Gateway’s URL blocking feature (described on page 90) to tell
the Gateway when to perform URL blocking.
To access the Schedule Rule menu, click Firewall in the menu bar and then click the
Schedule Rule submenu in the menu bar. Figure 50 shows an example of the menu.
Note: The Schedule Rule submenu is not available in the menu bar if Enable Firewall
Module is disabled in the Security Settings (Firewall) menu (see page 73).
Figure 50. Schedule Rule Menu
By default, the Gateway is configured to apply schedule rules to URL blocking 24 hours
every day. To change these settings:
1. To change the days when schedule rules are applied to URL blocking, uncheck Every Day
under Week Day. Then check the days when you want to apply schedule rules to URL
blocking.
2. To change the hours when schedule rules are applied to URL blocking, uncheck All Day.
Then specify the start and end times when you want to apply schedule rules to URL
blocking. Select AM or PM, where AM refers to times from Midnight to Noon and PM refers
to times from Noon to Midnight.
3. Click Apply.
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Configuring Your Gateway
Configuring Email and Syslog Alerts
The Gateway inspects packets at the application layer, and stores TCP and UDP session
information, including timeouts and number of active sessions. This information Is helpful
when detecting and preventing Denial of Service (DoS) and other network attacks.
If you enabled the Gateway’s firewall or content-filtering feature, you can use the
Email/Syslog Alert menu to configure the Gateway to send email notifications or add entries
to the syslog when:
y Traffic is blocked
y Attempts are made to intrude onto the network
y Local computers try to access block URLs
You can configure the Gateway to generate email notifications or syslog entries immediately
or at a preconfigured time.
To access the Email/Syslog Alert menu, click Firewall in the menu bar and then click the
Email/Syslog Alert submenu in the menu bar. Figure 51 shows an example of the menu.
The menu has three sections:
y The top area lets you configure the Gateway to send email notifications.
y The middle area lets you configure the to add syslog entries.
y The bottom area lets you define the alerting schedule.
Note: The Email/Syslog Alert submenu is not available in the menu bar if Enable Firewall
Module is disabled in the Security Settings (Firewall) menu (see page 73).
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Figure 51. Email/Syslog Alert Menu
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Configuring Email Alerts
The following procedure describes how to configure the Gateway to send email notifications.
This procedure assumes that your mail server is working properly.
1. In the Email/Syslog Alert menu, under Mail Server Configuration, enter the following
information:
– SMTP Server Address = IP address of the SMTP server that will forward the email
notification to recipients.
– Sender’s Email Address = name that will appear as the sender in the email
notifications.
2. Under Mail Server Authentication, enter the following information:
– User Name = your email name.
– Password = your email password.
3. Under Recipient list, click Add. When the Recipient Adding menu appears (see Figure
52), enter the name of the person who will receive email notifications and the person’s
email address, and then click Apply. (Or click Back to return to the Email/Syslog Alert
menu or Cancel to cancel any selections you made.) If you clicked Apply, the email
account is added to the Recipient list. To send email to additional email accounts (up to
4), repeat this step.
4. To change the settings for an email recipient, click the radio button to the left of the
recipient you want to change and click the Edit button. When the Recipient Adding menu
appears, edit the settings as necessary and click Apply.
5. To delete an email recipient, click the radio button to the left of the recipient and click
Delete. No precautionary message appears before you delete the email recipient.
6. Click Apply.
Figure 52. Recipient Adding Menu
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Configuring Syslog Entries
To have the Gateway add a syslog entry when traffic is blocked, attempts are made to
intrude onto the network, or local computers try to access blocked URLs:
1. In the Email/Syslog Alert menu, under Syslog Server Configuration, enter the syslog
server address.
2. Click Apply.
Configuring Alert Options
Using the options in the Alert Options area, you can configure the Gateway to send an
email to recipients you define in this menu and/or send entries to a syslog defined in this
menu if the Gateway detects an intrusion.
To configure the Gateway to send an email to the configured email addresses if it detects an
intrusion:
1. Perform steps 1 through 3 under “Configuring Email Alerts” on page 95.
2. Under Alert Options, check Send Email next to When intrusion is detected.
3. Click Apply.
To configure the Gateway to send an entry to a syslog if it detects an intrusion:
1. Perform step 1 under “Configuring Syslog Entries” on page 96.
2. Under Alert Options, check Send Syslog next to When intrusion is detected.
4. Click Apply.
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Configuring DMZ Settings
If you have a local client computer that cannot run an Internet application properly behind
the NAT firewall, you can configure it for unrestricted two-way Internet access by defining it
as a Virtual Demilitarized Zone (DMZ) host. Adding a client to the DMZ may expose your
local network to various security risks because the client in the DMZ is not protected by the
firewall.
To access the DMZ (Demilitarized Zone) menu, click Firewall in the menu bar and then click
the DMZ submenu in the menu bar. Figure 53 shows an example of the menu.
Note: The DMZ submenu is not available in the menu bar if Enable Firewall Module is
disabled in the Security Settings (Firewall) menu (see page 73).
Figure 53. DMZ (Demilitarized Zone) Menu
To configure DMZ settings:
1. In the DMZ (Demilitarized Zone) menu, check Enable DMZ Host. The 2 rightmost fields
next to this option become available.
2. Enter the last two octets in the IP addresses of the computer to be used as the DMZ
server.
3. Click Apply.
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Using the Tools Settings Menu
Using the Tools Settings menu, you can reset the Gateway and restore the device’s factory
default settings. To access the Tools Settings menu, click Tools in the menu bar. Figure 54
shows an example of the menu.
Note: To reboot the Gateway and retain any customized settings, use the Reboot menu (see
“Using the Reboot Menu to Reboot the Gateway“ on page 99).
Figure 54. Tools Settings Menu
To reset the Gateway and restore its factory default settings:
1. Click Factory Reset. The warning message in Figure 55 appears.
2. Click OK to restore the Gateway’s factory default settings or click Cancel to retain the
Gateway’s current settings.
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Figure 55. Warning Message when Restoring Factory Defaults
Using the Reboot Menu to Reboot the Gateway
Using the Reboot menu, you can reset the Gateway and retain all changes that have been
made to the Gateway’s factory default settings. To access the Reboot menu, click Tools in
the menu bar and then click the Reboot submenu in the menu bar. Figure 56 shows an
example of the menu.
Figure 56. Reboot Menu
To reboot the Gateway and retain all changes made to its factory default settings:
1. In the Reboot menu, click Apply. The precautionary message in Figure 57 appears.
2. Click OK to reboot the Gateway or click Cancel to not reboot it. If you clicked OK, the
reboot is complete when the POWER LED stops blinking and you will need to log in to the
Web interface again.
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Figure 57. Precautionary Message When Rebooting the Gateway
Viewing Status Information
The Status page is a read-only screen that shows the:
y Connection status for the Gateway’s WAN and LAN interfaces
y Firmware and hardware versions
y Any illegal attempts to access your network
y Information about all DHCP clients currently connected to the Gateway
y Network, LAN client, and cable modem system event logs, with buttons for clearing or
refreshing the logs and releasing the IP
y LAN client log, with buttons for refreshing and releasing IP addresses
The Status menu appears when you first log in to the Web management interface. You can
also display it by clicking Status in the menu bar. Figure 58 shows an example of the status
information shown.
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