SMC Networks DORY3A Cable Gateway User Manual SMCD3GNV Wireless Cable Modem Gateway
SMC Networks Inc Cable Gateway SMCD3GNV Wireless Cable Modem Gateway
User manual
SMC Networks
20 Mason
Irvine, CA. 92618
U.S.A.
Copyright © 2012 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 :SMCD3G2GNV) 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.
SMCD3GNV Wireless Cable Modem Gateway User Manual
May 8, 2012
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Contents
Preface .................................................................................................................... vii
Key Features ............................................................................................................. viii
Document Organization .............................................................................................. ix
Document Conventions .............................................................................................. ix
Safety and Warnings ............................................................................................ ix
Typographic Conventions ............................................................................................ x
1 Getting to Know the Gateway ............................................................................ 11
Unpacking Package Contents ................................................................................... 12
System Requirements ............................................................................................... 12
Front Panel ................................................................................................................ 13
Rear Panel ................................................................................................................ 15
Top Panel .................................................................................................................. 16
Bottom Panel ............................................................................................................. 16
Using the Reset Button ............................................................................................. 17
2 Installing the Gateway ........................................................................................ 18
Finding a Suitable Location ....................................................................................... 19
Installing a Battery ..................................................................................................... 20
Connecting to the LAN .............................................................................................. 21
Connecting the WAN ................................................................................................. 22
Connecting to the Public Telephone Network ........................................................... 22
Powering on the Gateway ......................................................................................... 23
3 Preconfiguration Guidelines .............................................................................. 24
Configuring Your Computer for TCP/IP ..................................................................... 25
Configuring Microsoft Windows 2000 .................................................................. 25
Configuring Microsoft Windows XP ..................................................................... 26
Configuring Microsoft Windows Vista .................................................................. 27
Configuring Microsoft Windows 7 ........................................................................ 30
Configuring an Apple® Macintosh® Computer ..................................................... 33
Disabling Proxy Settings ........................................................................................... 34
Disabling Proxy Settings in Internet Explorer ...................................................... 34
Disabling Proxy Settings in Firefox ...................................................................... 34
Disabling Proxy Settings in Safari ....................................................................... 35
Disabling Firewall and Security Software .................................................................. 35
Confirming the Gateway’s Online Status ................................................................... 35
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Confirming Your Computer’s Link Status .................................................................. 35
4 Configuring the Gateway ................................................................................... 36
Accessing the Gateway’s Web Management ............................................................ 37
Understanding the Web Management Interface Menus ............................................ 38
Web Management Interface Menus .......................................................................... 40
Viewing Information About Your Network and Connected Devices ..................... 42
Viewing Information About Your Network and Connections ................................ 43
Viewing the Gateway’s Connection Status .................................................... 44
Viewing Comcast Network Information .......................................................... 46
Viewing and Editing Your Local IP Configuration .......................................... 47
Viewing and Editing Wireless Configuration .................................................. 49
Configuring Firewall Settings ............................................................................... 53
Viewing System Software Settings ...................................................................... 55
Configuring System Hardware ............................................................................. 56
Viewing System Hardware Settings .............................................................. 56
Viewing Battery Settings ................................................................................ 57
Viewing LAN Ethernet Settings ..................................................................... 58
Viewing Wi-Fi Settings ................................................................................... 59
Configuring Your Home Network ......................................................................... 60
Working with Connected Devices ........................................................................ 64
Manually Adding Computers with Static IP Addresses to the Wireless
Network ............................................................................................ 65
Configuring Parental Controls ............................................................................. 68
Blocking Sites and Keywords, and Selecting Trusted Computers ................. 68
Blocking Services .......................................................................................... 75
Managing Devices and Access Types ........................................................... 78
Generating Reports ....................................................................................... 82
Using Advanced Features ................................................................................... 84
Enabling or Disabling Port Forwarding .......................................................... 84
Enabling or Disabling Port Triggering ............................................................ 87
Enabling or Disabling Port Blocking ..............................................................
91
Discovering Devices ...................................................................................... 92
Troubleshooting the Gateway .............................................................................. 94
Defining Log Filters ........................................................................................ 94
Testing Connectivity to Destination and IP Addresses .................................. 96
Restoring or Rebooting the Gateway ............................................................ 98
Changing the Login Password ....................................................................... 99
5 Configuring the Gateway’s mso Interface ...................................................... 100
Accessing the Gateway’s Web Management .......................................................... 101
Understanding the Web Management Interface Menus .......................................... 102
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Web Management Interface Menus ........................................................................ 104
Configuring the Gateway Settings ..................................................................... 106
Viewing At-a-Glance Configuration Settings................................................ 107
Configuring Email Notifications .................................................................... 108
Configuring Connections ................................................................................... 110
Viewing the Gateway’s Connection Status .................................................. 111
Viewing and Editing Your Local IP Configuration ........................................ 112
Viewing and Editing Wireless Configuration ................................................ 114
Viewing XFINITY Network Information ........................................................ 121
Configuring Firewall Settings ............................................................................. 123
Viewing System Software Settings .................................................................... 125
Configuring Hardware ........................................................................................ 126
Viewing System Hardware Settings ............................................................ 127
Viewing Battery Settings .............................................................................. 128
Viewing LAN Ethernet Settings ................................................................... 129
Viewing Wi-Fi Settings ................................................................................. 130
Configuring Your Home Network ....................................................................... 131
Working with Connected Devices ...................................................................... 135
Manually Adding Computers with Static IP Addresses ................................ 136
Manually Adding Wireless Clients ............................................................... 139
Configuring Parental Controls ........................................................................... 142
Blocking Sites and Keywords, and Selecting Trusted Computers ............... 142
Blocking Services and Selecting Trusted Computers .................................. 148
Managing Devices and Access Types ......................................................... 152
Generating Reports ..................................................................................... 156
Using Advanced Features ................................................................................. 157
Enabling or Disabling Port Forwarding ........................................................ 157
Enabling or Disabling Port Triggering .......................................................... 160
Remote Management .................................................................................. 163
Configuring DMZ Settings ...........................................................................
165
Configuring Routing Settings ....................................................................... 167
Configuring Dynamic DNS Settings ............................................................. 169
Discovering Devices .................................................................................... 171
Troubleshooting the Gateway ............................................................................ 173
Generating Logs .......................................................................................... 174
Testing Connectivity to Destination and IP Addresses ................................ 175
Restoring or Rebooting the Gateway .......................................................... 177
Changing the Login Password ..................................................................... 178
6 Troubleshooting Procedures ........................................................................... 179
Basic Troubleshooting Procedures ......................................................................... 180
Advanced Troubleshooting Procedures .................................................................. 182
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Troubleshooting Physical Network Problems .................................................... 182
Troubleshooting Configuration Problems .......................................................... 183
Determining Your IP Address ...................................................................... 183
Troubleshooting Software-Interaction Problems ............................................... 187
Specific Troubleshooting Procedures ...................................................................... 188
Unable to Log In to Gateway ............................................................................. 188
Local Networked Devices Unable to Access the Gateway ................................ 188
Unable to Access the Internet ........................................................................... 189
Unable to Access Networked Devices ............................................................... 191
Using the Ping Utility to Troubleshoot ............................................................... 191
Testing the Path from a Computer to the Gateway ..................................... 191
Testing the Path from a Computer to the Internet ....................................... 192
Using Ping on a Macintosh .......................................................................... 193
Gateway Disconnects from the Internet ............................................................ 194
Slow Web Browsing ........................................................................................... 195
Unable to Configure Port Forwarding ................................................................ 195
Unable to Use Pass-thru VPN ........................................................................... 195
Gateway is Not Passing DHCP Address to a computer .................................... 195
Determining a Computer’s MAC Address .......................................................... 196
Microsoft Windows ...................................................................................... 196
Apple Macintosh Windows OS X ................................................................. 197
Wireless Troubleshooting ........................................................................................ 198
Checking the Gateway’s Wireless Connection .................................................. 198
Wireless Range is Low ...................................................................................... 198
Unable to Connect to a Wireless Network Using Windows XP and Vista ......... 199
Achieving Optimal Wireless Performance ......................................................... 201
Guidelines for Improving Your Wireless Network .............................................. 201
Wireless IEEE 802.11n Guidelines .................................................................... 202
Application and Gaming Troubleshooting ............................................................... 204
Connecting to Messenger Services Behind the Gateway .................................
204
Connecting to America Online Behind the Gateway ......................................... 204
Connecting to XBox Live, PSP, and Nintendo WFC ......................................... 204
Appendix A - Specifications ............................................................................... 205
Appendix B - Compliances ................................................................................. 209
Index ..................................................................................................................... 211
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Preface
The SMCD3GNV 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
SMCD3GNV Wireless Cable Modem Gateway.
Preface
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Key Features
The following list summarizes the Gateway’s key features.
Integrated, CableLabs-compliant DOCSIS 1.1/ 2.0 /3.0 cable modem.
Integrated cable modem port for Internet connection to cable modem service.
Four 10/100/1000 Mbps Auto-Sensing LAN ports with Auto-MDI/MDIX.
High-speed 300 Mbps IEEE 802.11n Wireless Access Point.
Dynamic Host Configuration Protocol (DHCP) for dynamic IP configuration, and Domain
Name System (DNS) for domain name mapping.
One USB 2.0 port.
Two Plain Old Telephone System (POTS) RJ-11 telephone ports to allow Public Switch
Telephone Network (PSTN) analog phone connections.
IEEE 802.11 b/g/n interoperability with multiple vendors.
Wireless WEP, WPA, and WPA2 encryption, Hide SSID, and MAC Filtering.
VPN pass-through support using PPTP, L2TP, or IPSec.
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)
Universal Plug and Play (UPnP) enables any UPnP device seamlessly.
Quality of Service (QoS) ensures high-quality performance with existing networks.
Effortless plug-and-play installation.
Intuitive graphical user interface (GUI) configuration, regardless of operating system.
Comprehensive front panel LEDs for network status and troubleshooting.
Compatible with all popular Internet applications.
Preface
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Document Organization
This document consists of four chapters and two appendixes.
Chapter 1 - describes the contents in the Gateway package, system requirements, and
an overview of the Gateway’s front, rear, top, and bottom panels.
Chapter 2 - describes how to install the Gateway.
Chapter 3 - describes how to configure TCP/IP settings on the computer you will use to
configure the Gateway.
Chapter 4 - describes how to configure the Gateway.
Chapter 6 – provides troubleshooting information you can use in the unlikely event you
encounter a problem with the Gateway.
Appendix A - lists the Gateway’s specifications.
Appendix B - contains compliance information.
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
effectively.
Warning Warnings indicate that failure to take a specified action could result in damage to the
device.
Electric Shock Hazard This symbol warns users of electric shock hazard. Failure to take appropriate
precautions such as not opening or touching hazardous areas of the equipment could
result in injury or death.
Preface
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SMCD3GNV Wireless Cable Modem Gateway User Manual
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 (< >)
are also used to indicate variables.
screen/code Indicates text that is displayed on screen or entered by the user.
< > angled
brackets
Indicates a variable, which is a placeholder for actual text provided by the user or system. Italic font is also used to
indicate variables.
[ ] square
brackets
Indicates optional values.
{ } braces Indicates required or expected values.
| vertical bar Indicates that you have a choice between two or more options or arguments.
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SMCD3GNV Wireless Cable Modem Gateway User Manual
1 Getting to Know the Gateway
Before you install your SMCD3GNV 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:
Unpacking Package Contents (page 12)
System Requirements (page 12)
Front Panel (page 13)
Rear Panel (page 15)
Bottom Panel (page 16)
Top Panel (16)
Using the Reset Button (page 17)
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Unpacking Package Contents
Unpack the items in your SMCD3GNV Wireless Cables Modem Gateway contents and
confirm that no items are missing or damaged. Your package should include:
One SMCD3GNV Wireless Cable Modem Gateway
One 2600 mAh battery
One Category 5E Ethernet cable
If any items are missing or damaged, please contact your cable service provider. Keep the
carton, including the original packing material, in case you need to store the product or
return it.
System Requirements
To complete your installation, you will need the following items:
Provisioned Internet access on a cable network that supports cable modem service.
A computer with a wired network adapter with TCP/IP installed.
A Java-enabled Web browser, such as Microsoft Internet Explorer 5.5 or above.
Microsoft® Windows® 2000 or higher for USB driver support.
An analog telephone and two RJ-11 cables if you want to connect the Gateway to an
analog telephone and PSTN telephone line.
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Front Panel
The front panel of your SMCD3GNV Wireless Cable Modem Gateway contains a set of light-
emitting diode (LED) indicators. These LEDs show the status of the Gateway and simplify
troubleshooting.
Figure 1 shows the front panel of the SMCD3GNV Wireless Cable Modem Gateway. Table 1
describes the front panel LEDs.
Figure 1. Front Panel of the SMCD3GNV Wireless Cable Modem Gateway
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Table 1. Front Panel LEDs
LED Color Description
POWER White ON = power is supplied to the Gateway.
OFF = power is not supplied to the Gateway.
US/DS White Blinking = ranging is in progress.
ON = ranging is complete on 1 channel only.
OFF = scanning for DS channel.
DS White Blinking = scanning for DS channel.
ON = synchronized on 1 channel only.
US and DS Both US and DS blinking together = operator is performing maintenance.
Online White Blinking = cable interface is acquiring IP, ToD, CM configuration.
ON = Gateway is operational.
OFF = Gateway is offline.
WiFi White Blinking = data is transmitting over the Gateway’s Wi-Fi interface.
ON = Wi-Fi is enabled.
OFF = Wi-Fi is disabled.
Tel1 White Blinking = telephone line 1 is in use.
ON = Gateway’s telephone 1 port is online.
OFF = Gateway’s telephone 1 port is not online.
Tel2 White Blinking = telephone line 2 is in use.
ON = Gateway’s telephone 2 port is online.
OFF = Gateway’s telephone 2 port is not online.
Battery White Blinking = Gateway battery power is low. Please apply AC power as soon as possible.
ON = Gateway is operating from battery power.
OFF = Gateway is operating from AC power.
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Rear Panel
The rear panel of your SMCD3GNV 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 the SMCD3GNV Wireless Cable Modem Gateway
Table 2. SMCD3GNV 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 “Using the Reset
Button” on page 17).
USB USB 2.0 high-speed port for USB-enabled peripherals.
Tel 1-2 Connect an analog telephone to one port and an analog (PSTN) telephone line to the other port.
Ethernet 1-4 Four 10/100/1000 auto-sensing RJ-45 switch ports. Connect devices on your LAN such as a
computer, hub, or switch to these ports. Each port has two LED lights (see Table 3 on the next
page).
Cable Connect your coaxial cable line to this port.
Power 110 VAC Connect the supplied power cord.
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Table 3. Gigabit Ethernet Connectors LED Indicators
LED Description
Green Indicate 10/100/1000Mbps in use
Amber Indicate 10/100Mbps in use
Top Panel
The top panel of your SMCD3GNV Wireless Cable Modem Gateway has a WPS button for
configuring wireless security automatically. Figure 3 shows the WPS button.
Figure 3. Top View of the SMCD3GNV Wireless Cable Modem Gateway
Bottom Panel
The bottom panel of your SMCD3GNV Wireless Cable Modem Gateway contains a panel for
installing the Gateway’s battery. For information about installing the battery, see “Installing a
Battery” on page 20.
Getting to Know the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Using the Reset Button
Using the reset button on the rear panel (see Figure 2 on page 15), you can perform two
types of reset operations with the Gateway:
Software reset – this reset operation power-cycles the Gateway and retains its current
configuration settings.
Factory default reset – this operation remove all overrides made to the Gateway’s factory
default configuration and returns the Gateway to its original factory default settings.
The number of seconds you press the reset button determines which reset operation is
performed. To protect against accidental resets, the reset button is recessed on the
Gateway rear panel.
Note: You can also reset the Gateway and retain its current configuration settings using the
RESET method described under “Restoring or Rebooting the Gateway” on page 98.
To use the reset button to perform a software or factory default reset:
1. Leave power plugged into the Gateway.
2. Find the reset button at the top of the back panel, then use a thin object to press and hold
the reset button as follows:
– To perform a software reset, press the reset button for at least 10 seconds.
– To perform a factory default reset, press the reset button for at least 15 seconds.
3. Release the reset button.
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SMCD3GNV Wireless Cable Modem Gateway User Manual
2 Installing the Gateway
This chapter describes how to install your SMCD3GNV Wireless Cable Modem Gateway.
The topics covered in this chapter are:
Finding a Suitable Location (page 19)
Installing a Battery (page 20)
Connecting to the LAN (page 21)
Connecting the WAN (page 22)
Powering on the Gateway (page 23)
Installing the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Finding a Suitable Location
Your SMCD3GNV 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:
Be close to a working AC power outlet when powering the Gateway using AC power.
Allow at least one foot of space around the sides and top of the Gateway to provide
sufficient air flow around the device.
Not expose the Gateway to a dusty or wet environment.
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.
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.
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. For more information about
selecting an optimum location for wireless operation, see “Guidelines for Improving Your
Wireless Network” on page 201.
Installing the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Installing a Battery
To install a battery into the Gateway, use the following procedure.
1. Place the Gateway on its side on a table.
2. Remove battery compartment door on the bottom panel and set it aside (see Figure 4).
Figure 4. Removing the Battery Compartment Door
3. Insert the battery into the battery compartment (see Figure 5).
Figure 5. Installing the Battery
4. Close the battery compartment.
Note: Using the Battery menu in the Gateway’s Web interface, you can view status
information about the battery (see “Viewing Battery Settings” on page 57).
Installing the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Connecting to the LAN
Using an Ethernet LAN cable, you can connect the Gateway to a desktop computer,
notebook, hub, or switch. The Gateway 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 Ethernet ports on the rear panel
of the Gateway (see Figure 6).
Figure 6. Connecting to an Ethernet Port on the Gateway Rear Panel
2. Connect the other end of the cable to your computer’s network-interface card (NIC) or to
another network device (see Figure 7).
Figure 7. Connecting the Gateway to the a Laptop or Desktop Computer
Installing the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Connecting the WAN
To connect the Gateway to a Wide Area Network (WAN) interface:
3. 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 15). Use only manufactured coaxial
patch cables with F-type connectors at both ends for all connections.
4. Hand-tighten the connectors to secure the connection.
5. If the modem was not installed by your cable provider (ISP) or is replacing another cable
modem, contact your cable operator to register the SMCD3GNV. If the modem is not
registered with your cable operator, it will be unable to connect to the cable network
system.
Connecting to the Public Telephone Network
The rear panel of the Gateway has two RJ-11 telephone-style connectors labeled Tel 1 and
Tel 2. Each of these connectors can provide telephone service to multiple telephones, fax
machines, and analog modems.
The maximum number of telephone devices connected to each RJ-11 port is limited by the
total Ringing Load of the telephone devices that are connected. Many telephone devices are
marked with a Ringer Equivalent Number (REN). Each telephone port on the Gateway can
support up to a 5 REN load. The sum of the REN load on all of the telephone devices
attached to each port must not exceed 5 REN
Before you use the Gateway’s RJ-11 connectors to power the analog devices in your home
or office, disconnect the telephone lines from any other provider at the demarcation point. If
the incoming phone line is connected to another provider, such as an incumbent telephone
company, it can result in potentially harmful voltage to the analog telephone line.
Note: The customer or the customer's wire contractor is responsible for adhering to all local
codes for wiring.
To set up the ability to place calls using a regular analog telephone line (PSTN), perform the
following procedure.
1. Disconnect the phone lines from any other provider at the demarcation point, if appropriate.
2. Connect the RJ-11 cable on an analog device to the Tel 1 connector on the rear panel of
the Gateway.
3. Connect the RJ-11 cable on another analog device to the Tel 2 connector on the rear
panel of the Gateway.
Installing the Gateway
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Powering on the Gateway
After making your connections, use the following procedure to power on the Gateway:
1. Connect the supplied power cord to the power port on the rear panel of the Gateway (see
Figure 2 on page 15).
2. Connect the other end of the power adapter 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 14).
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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SMCD3GNV Wireless Cable Modem Gateway User Manual
3 Preconfiguration Guidelines
After you install your SMCD3GNV Wireless Cable Modem Gateway, use the information in
this chapter to configure the TCP/IP settings on the computer that will be used to configure
the Gateway. This chapter also covers other preconfiguration guidelines you should review
before configuring the Gateway.
The topics covered in this chapter are:
Configuring Your Computer for TCP/IP (page 25)
Disabling Proxy Settings (page 34)
Disabling Firewall and Security Software (page 35)
Confirming the Gateway’s Online Status (page 35)
Confirming Your Computer’s Link Status (page 35)
Preconfiguration Guidelines
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Configuring Your Computer for TCP/IP
Before you configure the Gateway using its Web management interface, configure TCP/IP
settings on the computer that will be used to configure the Gateway. The TCP/IP procedure
to use depends on the operating system installed on the computer.
For Microsoft Windows 2000, see the procedure below
For Microsoft Windows XP, see page 26
For Microsoft Windows Vista, see page 27
For Microsoft Windows 7, see page 30
For Apple Macintosh, see page 33
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 8).
Figure 8. Local Area Connection Status Window
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SMCD3GNV Wireless Cable Modem Gateway User Manual
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.
Configuring Microsoft Windows XP
Use the following procedure to configure your computer if your computer has Microsoft
Windows XP installed. 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 25.
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 9).
The Local Area Connection Properties dialog box appears.
Figure 9. Local Area Connection Status Window
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SMCD3GNV Wireless Cable Modem Gateway User Manual
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.
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 25.
1. On the Windows taskbar, click Start, click Control Panel, and then select 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 10). The Internet Protocol Version 4 Properties dialog box
appears.
Preconfiguration Guidelines
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Figure 10. Local Area Connection Properties Window
6. In the Internet Protocol Version 4 Properties dialog box, click Obtain an IP address
automatically to configure your computer for DHCP (see Figure 11).
Figure 11. Internet Protocol Properties Window
Preconfiguration Guidelines
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SMCD3GNV Wireless Cable Modem Gateway User Manual
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 12. Local Area Connection Status Window
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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 13. Typing ncpa.cpl in the Start Menu Box
The Network Connections List appears.
Figure 14. 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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Figure 16. 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.
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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 NIC connected to the SMCD3GNV is selected in the Show field.
3. In the Configure field on the TCP/IP tab, select Using DHCP (see Figure 17).
4. Click Apply Now to apply your settings and close the TCP/IP dialog box.
Figure 17. Selecting Using DHCP in the Configure Field
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Disabling Proxy Settings
Disable proxy settings in your Web browser. Otherwise, you will not be able to view the
Gateway’s Web-based configuration menus.
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.
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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. After you configure the Gateway,
please re-enable your computer firewall.
Confirming the Gateway’s Online Status
Confirm that the Online LED on the Gateway front panel is ON (see Figure 1 on page 13). If
the LED is OFF, replace the coaxial cable connecting the Gateway to the cable service. If
the Online LED does not go ON after several minutes, please contact your cable provider to
confirm that the service is active.
Confirming Your Computer’s Link Status
Be sure there is an Ethernet cable connecting your computer to the Gateway. Then confirm
that the LEDs for the Gateway port connected to your computer are blinking. If the LEDs are
OFF, the connection between your computer and Gateway is not working properly.
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4 Configuring the Gateway
After configuring your computer for TCP/IP and following the preconfiguration guidelines in
Chapter 3, use that computer’s Web browser to configure your SMCD3GNV Gateway. This
chapter describes how to use your computer’s Web browser to configure the Gateway.
The topics covered in this chapter are:
Accessing the Gateway’s Web Management (page 37)
Understanding the Web Management Interface Menus (page 38)
Web Management Interface Menus (page 40)
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Accessing the Gateway’s Web Management
After configuring your computer for TCP/IP and reviewing the guidelines on the previous
page, configure the Gateway using its Web-based management interface. From your Web
browser, 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 display the SMCD3GNV Wireless Cable Modem Gateway’s Web-based management
screens, use the following procedure.
1. Launch a Web browser.
Note: Your computer does not have to be online to configure the Gateway.
2. In the browser address bar, type http://10.0.0.1 and press the Enter key. The Login screen
appears (see Figure 18).
Figure 18. Login Screen
3. In the Login User Password screen, enter the default username cusadmin and the default
password highspeed. Both are case sensitive. For security, each password character
appears as a dot (●). After you log in, we recommend you change the default password on
the Change Password menu (see “Changing the Login Password” on page 99).
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Note: Your cable modem operator may customize the login password, so please check with
your operator for the correct password to use.
4. Click the LOGIN button to access the Gateway’s Web interface. The At a Glance menu
appears, showing connection status information about the Gateway. You can also display
this menu any time by clicking At a Glance in the menu bar.
Understanding the Web Management Interface Menus
The left side of the management interface contains a menu bar for selecting menus to
configure the Gateway. When you click a menu, information and any configuration settings
associated with the menu appear in the main area (see Figure 19). If the displayed
information exceeds the main area, scroll bars appear to the right of the main area so you
can scroll up and down through the information.
The top of the main area shows the path (or “breadcrumb”) associated with the information
displayed in the main area. For example, if you click the Status submenu in the Connection
menu, Connection > Status appears at the top of the main area.
The top-right area shows the username used to log in to the Web interface, along with links
for changing the login password and logging out of your current session.
Below the login user name and links are status icons that show the:
Percentage of battery power remaining
Gateway’s Internet access
Status of the Gateway’s wireless connection
Firewall security level
A control panel at the bottom of the menu provides links for accessing comcast.net, help,
security, smartzone, and customer central.
Username
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Figure 19. Main Areas on the Web Management Interface
Some menus in the menu bar 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
Connection menu, the submenus in Figure 20 appear.
Figure 20. Example of Connection Submenus
Main area
Status icons
Logout and Change
Password Buttons
Menu bar
Control Panel
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Web Management Interface Menus
Table 4 describes the menus in the Web management interface.
Table 4. Web Management Interface Menus and Submenus
Menus and Submenus Description See Page
At a Glance Lets you view information about your home network, connected
devices, and recent network updates.
42
Connection Displays submenus that let you:
Connection > Status • View and edit settings for the local IP network, and view the settings
of the Wi-Fi network and Comcast network.
44
Connection > Comcast Network • View Comcast network settings and initialization procedures,
including cable modem, downstream, and upstream information.
46
Connection > Local IP Network • View and reset your local IPv4 and IPv6 settings. 47
Connection > WiFi • View and edit the Gateway’s basic and advanced wireless settings. 49
Firewall • Configure the security level of the Gateway’s internal firewall. 53
Ssoftware • View system software information. 55
Hardware > System Hardware • View information about the Gateway system hardware. 56
Hardware > Battery • View information about the Gateway’s internal battery. 57
Hardware > LAN • View the link status and Media Access Control (MAC) address for
each of the four Gateway Ethernet ports.
58
Hardware > WiFi • View the status and MAC address of the Gateway’s Wi-Fi port. 59
Wizard • Use a wizard to set up your home network. 60
Connected Devices Displays the Computer submenu for adding online computers and viewing computers
that are offline.
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Table 4. Web Management Interface Menus and Submenus
Menus and Submenus Description See Page
Parental Control Displays submenus that let you configure the Gateway for:
Parental Control > Managed Sites • Blocked sites, blocked keywords, and trusted computers. 68
Parental Control > Managed Services • Blocked services and trusted computers. 75
Parental Control > Managed Devices • Managed and blocked devices. 78
Parental Control > Reports • Generating reports containing selected Log Messages generated
during the user-defined timeframe.
82
Advanced Displays submenus that let you:
Advanced > Port Forwarding • Enable or disable the Gateway’s port forwarding feature. 84
Advanced > Port Triggering • Enable or disable the Gateway’s port triggering feature. 87
Advanced > Port Blocking • Enable or disable the Gateway’s port blocking feature. 91
Advanced > Device Discovery • Enable or disable the Gateway’s Universal Plug and Play (UPnP)
feature for dynamic connectivity to devices on the network.
92
Troubleshooting Displays submenus that let you:
Troubleshooting > Logs Configure log filters, and download and print system logs. 94
Troubleshooting > Disanostic Tools Tests connectivity to a destination or IP address. 96
Troubleshooting > Restore/Reboot Gateway Reset the Gateway, reset the Wi-Fi router only, or restore factory
settings.
98
Troubleshooting > Change Password Change the password used to log in to the Gateway’s Web interface. 99
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Viewing Information About Your Network and Connected Devices
The At a Glance menu appears when you log in to the Gateway’s Web interface. You can
also display this menu by clicking Gateway in the menu bar. Figure 21 shows an example of
the At a Glance menu and Table 5 describes the menu.
Figure 21. Example of the At a Glance Menu
Table 5. At a Glance Menu
Option Description
Home Network Shows the status of your home network’s Ethernet and Wi-Fi home status. A green check mark indicates normal
operation. This area also shows the Gateway’s firewall security level. To change this level, see “Configuring
Firewall Settings” on page 53.
Connected
Devices
Shows the names of the devices connected to the Gateway. A Connected Devices button opens the Computers
menu for viewing devices that the Gateway automatically detects using DHCP (see page 64).
Recent Network
Updates
Displays alert and warning information. A drop-down list lets you view this information for today, yesterday, this
week, or this month.
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Viewing Information About Your Network and Connections
Using the Gateway menu, you can:
View and edit settings for the local IP network, and view Wi-Fi and Comcast network
status. See page 44.
View Comcast network settings and initialization procedures, including cable modem,
downstream, and upstream information. See page 46.
Configure IPv4 or IPv6 settings for the Gateway. See page 47.
View and edit basic and advanced wireless settings. See page 49.
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Viewing the Gateway’s Connection Status
The Status menu lets you view and edit the settings for your local IP network. You can also
use this menu to view the status of the Wi-Fi network and Comcast network.
To display the Status menu, click Connection in the menu bar, and then click the Status
submenu. Figure 22 shows an example of the Status menu and Table 6 describes the menu.
Figure 22. Example of the Status Menu
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Table 6. Status Menu
Option Description
Local IP Network Displays information about the local network. The EDIT button opens the Local IP
Configuration menu for viewing and changing IPv4 or IPv6 settings (see “Viewing and Editing
Your Local IP Configuration” on page 47).
WiFi Network Lets you view information about your Wi-Fi network. A VIEW button opens the WiFi menu for
viewing the link status and MAC address of the Gateway’s WiFi LAN port (see “Viewing Wi-Fi
Settings” on page 59).
Comcast Network Lets you view information about the Comcast network. A VIEW button opens the Comcast
Network menu for viewing the initialization procedures, including cable modem, downstream,
and upstream information (see “Viewing Comcast Network Information” on page 46).
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Viewing Comcast Network Information
The Comcast Network menu lets you view settings for the Comcast network. This menu also
shows information about the Gateway’s initialization procedures, cable modem settings, and
downstream and upstream information. The information shown on this menu automatically
updates (refreshes) every 10 seconds.
To display the Comcast Network menu, click Gateway in the menu bar, and then click the
Connection and Comcast Network submenus. Figure 23 shows an example of the
Comcast Network menu.
Figure 23. Example of Comcast Network Menu
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Viewing and Editing Your Local IP Configuration
The Local IP Configuration menu lets you view and change the Internet Protocol (IP)
settings used by the Gateway. Fields are provided for configuring IP version 4 (IPv4) and the
newer IP version 6 (IPv6).
To display the Local IP Configuration menu, click Connection in the menu bar, and then
click the Local IP Network submenu. Figure 24 shows an example of the Local IP
Configuration menu and Table 7 describes the menu.
Figure 24. Example of Local IP Configuration Menu
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Table 7. Local IP Configuration Menu
Option Description
IPv4
(for computers that use IPv4 Messaging)
Gateway Address IPv4 IP address that the Gateway is to use.
Subnet Mask IPv4 subnet mask that the Gateway is to use.
DHCP Beginning Address Starting IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the starting IP address range.
DHCP Ending Address Ending IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the ending IP address range.
DHCP 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.
SAVE SETTINGS button After configuring your IPv4 settings, click this button to save them.
RESTORE DEFAULT SETTINGS
FOR IPV4 button
Resets the Gateway to the factory default IPv4 settings.
IPv6
(for computers that use IPv6 Messaging)
Enable IPv6 Check this box to configure the Gateway to use IPv6 settings.
Gateway Address IPv6 IP address that the Gateway is to use.
Subnet Mask IPv6 subnet mask that the Gateway is to use.
DHCP Beginning Address Starting IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the starting IP address range.
DHCP Ending Address Ending IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the ending IP address range.
DHCP 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.
IPv6 Mode Select the IPv6 mode that the Gateway is to use. Choices are:
• link-local only = allows communication among nodes attached to the same link. Packets
are not forwarded outside the site. (default)
• site-local only = allows communication among nodes within a site or organization.
SAVE SETTINGS button After configuring your IPv6 settings, click this button to save them.
RESTORE DEFAULT SETTINGS
FOR IPV6 button
Resets the Gateway to the factory default IPv6 settings.
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Viewing and Editing Wireless Configuration
The Wireless menu lets you view and change the Gateway’s basic and advanced wireless
settings. To display the Wireless menu, click Gateway in the menu bar, and then click the
Connection and WiFi submenus. Figure 25 shows an example of the Local IP Configuration
menu and Table 8 describes the menu.
Figure 25. Example of Wireless Menu
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Table 8. Wireless Menu
Option Description
Private Wireless Network
Name
MAC Address
Security Mode
Shows the name MAC address, and security setting, if any, for each private wireless network
detected. An EDIT button is provided to change these settings.
Private Wireless Basic Setting
Mode Choices are:
• 802.11 b/g = use this setting if you have a combination of IEEE 802.11b and IEEE 802.11g
devices on your network.
• 802.11n = 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.
• 802.11 b/g/n = use this setting if you have a combination of IEEE 802.11b, IEEE 802.11g,
and IEEE 802.11n devices on your network. (default)
Channel Selection Select how the Gateway will select a channel for communicating over the wireless network.
Choices are:
• Automatic = the Gateway selects the channel automatically. (default)
• Manual = the Gateway uses the channel specified in the Channel option.
Channel If the Channel Selection option is Manual, specify the appropriate channel from the list
provided to correspond with your network settings. Choices are 1, 6, and 11. The default
setting is 6, which refers to radio frequency ranges within the 2.4 GHz range. You can change
this setting if necessary; however, all devices in your wireless network must use the same
channel to work properly.
SAVE BASIC SETTING button Click this button to save your changes to the private wireless basic settings.
Private Wireless Advanced Setting
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)
Operation 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 multiple-input multiple-output
(MIMO) architecture.
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Option Description
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 MSDUA (A-MSDU) Enables or disables aggregation of multiple MSDUs in one MPDU. Default is disable.
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.
HT Tx Stream Select 1 or 2 from the pull-down menu. Default is 2.
HT Rx Stream Select 1 or 2 from the pull-down menu. Default is 2.
WMM Power Save When checked, enables the Gateway’s power-management features for optimizing battery
life. Default is checked.
STBC Space Time Block Coding (STBC) is an 802.11n technique intended to improve the reliability
of data transmissions. With STBC, the data stream is transmitted on multiple antennas, so the
receiving system has a better chance of detecting at least one of the data streams. Choices
are:
• Disable = Gateway does not transmit the same data on multiple antennas. (default)
• Enable = Gateway transmits the same data stream on multiple antennas at the same time.
SAVE ADVANCED SETTING button Click this button to save your changes to the private wireless advanced settings.
WiFi Client Setup Configuration (WP5)
WPS Lets you enable or disable Wi-Fi Protected Setup (WPS) on the Gateway. Default is disabled.
Security A read-only field that shows security information.
Encryption A read-only field that shows the encryption method, if any, used.
WPA Passphrase A read-only field that shows the WPA passphrase used by the Gateway. The passphrase is a
sequence of words or text that can be used to automatically generate WEP keys.
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.
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Option Description
Connect to Your WPS-supported Device
Push Button Click this option to use the WPS button on the top panel of the Gateway to configure WPS
(see Figure 3).
PIN Number Click this option if you need to enter a PIN to configure WPS.
Enter Wireless Client’s PIN If you clicked PIN Number, enter the PIN in this field.
Pair with my WiFI Client Click this button to pair (connect) the Gateway’s Wi-Fi settings with your Wi-Fi client.
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Configuring Firewall Settings
The Firewall menu lets you view and edit the settings for the Gateway’s internal firewall. The
setting you select here is displayed at the top-right area of the Gateway’s Web interface.
To display the Firewall menu, click Gateway in the menu bar, and then click the Firewall
submenu. Figure 26 shows an example of the Firewall menu and Table 9 describes the
menu.
Figure 26. Example of the Firewall Menu
Table 9. Firewall Menu
Option Description
Maximum Security (High) Configures the Gateway’s firewall to the highest setting. Select this setting for environments
where security is critical.
Typical Security (Medium) Configures the Gateway’s firewall for typical (medium) security. Select this setting for
environments where security is important.
Minimum Security (Low) Configures the Gateway’s firewall for minimum (low) security. Select this setting for
environments where security is not important.
Custom Security Clicking this option displays the custom security settings in Figure 27. For more information,
see Table 10.
SAVE SETTINGS button After configuring your firewall settings, click this button to save them.
RESTORE DEFAULT SETTINGS
button
Resets the Gateway to the factory default firewall settings.
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Figure 27. Custom Firewall Security Settings
Table 10. Custom Security Settings
Option Description
Block http Blocks Hypertext Transfer Protocol (HTTP) downloads on ports 80 and 443.
Block ICMP Blocks Internet Control Message Protocol (ICMP) traffic at the outer perimeter of the Gateway
to protect against attacks such as cascading ping floods.
Block Multicast Blocks unsolicited multicast packets.
Block Peer-to-peer application Blocks peer-to-peer applications
Block IDENT Blocks identification (Ident) requests from Ident servers on port 113.
Note: Port 113 is associated with Ident. If a client program on a computer connected to the
Gateway contacts a remote server for services such as POP, IMAP, SMTP, or IRC, the
remote server returns a query to the “Ident” server running in many systems listening for
these queries on port 113. Essentially, the remote server is asking your system to identify
itself and you. This means that port 113 is often probed by attackers as a source of your
personal information.
Disable entire firewall Disables all of the Gateway’s firewall settings.
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Viewing System Software Settings
The Software menu is a read-only screen that shows the software version and packet cable
version associated with the Gateway.
To display the Software menu, click Gateway in the menu bar, and then click the Software
submenu. Figure 28 shows an example of the Software menu.
Figure 28. Example of the Software Menu
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Configuring System Hardware
Using the Hardware menu, you can:
View system hardware information. See page 56.
View information about the Gateway’s internal battery. See page 57.
View the link status and Media Access Control (MAC) address for all four Gateway
Ethernet ports. See page 58.
View the status and MAC address of the Gateway’s Wi-Fi port. See page 59.
Viewing System Hardware Settings
The System Hardware menu is a read-only screen that shows the Gateway’s system
hardware.
To display the System Hardware menu, click Gateway in the menu bar, and then click the
Hardware and System Hardware submenus. Figure 29 shows an example of the System
Hardware menu.
Figure 29. Example of the System Hardware Menu
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Viewing Battery Settings
The Battery menu is a read-only screen that shows information about the Gateway’s internal
battery.
To display the Battery menu, click Gateway in the menu bar, and then click the Hardware
and Battery submenus. Figure 30 shows an example of the Battery menu.
Figure 30. Example of the Battery Menu
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Viewing LAN Ethernet Settings
The LAN Ethernet menu is a read-only screen that shows the link status and MAC address
of the Gateway’s four Ethernet ports.
To display the LAN Ethernet menu, click Gateway in the menu bar, and then click the
Hardware and LAN submenus. Figure 31 shows an example of the LAN Ethernet menu.
Figure 31. Example of the LAN Ethernet Menu
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Viewing Wi-Fi Settings
The WiFi menu is a read-only screen that shows the Wi-Fi link status and MAC address of
the Gateway’s WiFi port.
To display the WiFi menu, click Gateway in the menu bar, and then click the Hardware and
WiFi submenus. Figure 32 shows an example of the WiFi menu.
Figure 32. Example of the WiFi Menu
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Configuring Your Home Network
The Home Network Wizard menu is part of a 2-page wizard you can use to configure your
home network.
To display the first page of the Home Network Wizard, click Gateway in the menu bar, and
then click the Wizard submenu. Figure 33 shows an example of the first page of the Home
Network Wizard and Table 11 describes the page.
Figure 33. Example of the First Page of the Home Network Wizard
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Table 11. Home Network Wizard – Step 1
Option Description
Gateway Name The name you want to assign to the Gateway. Assign a name so that this device will not be
confused with other devices on your wireless network. We recommend you use a name that is
meaningful to you so you can identify the Gateway easily. The Gateway name is case
sensitive and can contain from 8 to 20 alphanumeric characters, but no spaces.
Current Password Enter the current case-sensitive password. For security purposes, every typed character
appears as a dot (). The default password is not shown for security purposes. The password
is case sensitive and can contain from 8 to 20 alphanumeric characters, but no spaces.
New Password Enter the new password you want to use. The password is case sensitive and can contain
from 8 to 20 alphanumeric characters, but no spaces. Spaces count as password characters.
For security purposes, every typed character appears as a dot ().
Re-enter New Password Enter the same case-sensitive administrator password you typed in the New Password field.
For security purposes, every typed character appears as a dot ().
NEXT PAGE button Click this button to display the second page of the Home Network Wizard (see Figure 34 and
Table 12).
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Figure 34. Example of the Second Page of the Home Network Wizard
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Table 12. Home Network Wizard – Step 2
Option Description
Enter WiFI Network Name Enter the name of your wireless network (typically, the SSID). The Wi-Fi name will make it
more obvious for others to know which network they are connecting to.
Encryption Method The default selection of OPEN means your wireless transmissions are not protected. To
prevent other computers in the area from using your Internet connection, secure your wireless
network by selecting an encryption method from this drop-down list. There are several
encryption methods for wireless settings, including:
• WEP = basic encryption and therefore least secure (i.e., it can be easily cracked, but is
compatible with a wide range of devices including older hardware).
• WPA (WPA-Personal) = one of the highest levels of wireless security for your network.
Select this option if your wireless adapters support WPA.
• WPA-2 (Wi-Fi Protected Access version 2) = second generation of WPA. Select this option
if your wireless adapters support WPA2.
• WPA-Enterprise = provides extremely strong wireless security and adds authentication to
WEP's basic encryption. This option is mainly suited for enterprise users, not home users,
and can be selected if your wireless adapters support WPA-Enterprise.
Enter Network Password If you select one of the WEP or WPA encryption settings, enter the password used for
encryption and decryption.
Radius Server Address IP address of the Remote Authentication Dial In User Service (RADIUS) server.
Radius Server Port Port number that RADIUS uses for authentication. Default is 1812.
FINISH button Click this button to complete the Home Network Wizard.
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Working with Connected Devices
Using the Computers menu, you can:
View the computers that the Gateway has discovered using DHCP or Home Network
Administration Protocol (HNAP).
Manually add computers with static IP addresses to the wireless network.
Edit computers with static IP addresses
Disconnect online and offline computers from the wireless network.
To display the Computers menu, click Connected Devices in the menu bar. Figure 35
shows an example of the Computers menu.
Figure 35. Example of the Computers Menu
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Manually Adding Computers with Static IP Addresses to the Wireless Network
To manually add a computer with a static IP address to your wireless network:
5. Under Online Computers, click the ADD COMPUTER WITH STATIC IP button. The Add
Computer menu appears (see Figure 36).
6. Complete the fields in the Add Computer menu (see Table 13).
7. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the Computer menu reappears, with the computer you added displayed under Offline
Computers.
8. To add more computers with static IP addresses, repeat steps 1 through 3.
9. To edit an online computer, click the EDIT button next to the computer you want to modify,
edit the settings on the Edit Computer menu (see Figure 37), and click SAVE.
10. To delete an online or offline computer, click the X next to the computer. When the Delete
Computer message appears, click OK to delete the computer or CANCEL to retain it. If
you clicked OK, the computer is removed from the Computers menu.
Figure 36. Example of the Add Computer Menu
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Table 13. Add Computer Menu
Option Description
Host Name Host name of the computer you want to add.
Connection Read-only field that displays shows the network connection of Ethernet.
MAC Address MAC address of the computer you want to add. Add a colon between each 2-character ID in
the MAC address. For information about obtaining the MAC address of a computer, see
“Determining a Computer’s MAC Address” on page 196.
Static IP Address Static IP address of the computer you want to add. Add a period between each octet in the IP
address.
Comments Optional comments about the computer.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Computer menu.
Figure 37. Example of the Edit Computer Menu
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Table 14. Edit Computer Menu
Option Description
Host Name Read-only field that shows the host name of the computer you selected.
Connection Read-only field that displays shows the network connection of Ethernet.
Configuration Select whether the selected computer should be discovered by the Gateway using DHCP or a
static IP address. If you select Static IP, enter the static IP address in the Static IP Address
field.
MAC Address Edit the MAC address of the selected computer. Add a colon between each 2-character ID in
the MAC address.
Static IP Address If you selected Static IP for Configuration, enter the computer’s static IP address. Add a
period between each octet in the IP address.
Comments Optional comments about the computer.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Edit Computer menu.
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Configuring Parental Controls
Regulating Web browsing can prevent children and workers from accessing dangerous
content on the Internet, or having to make judgment calls over suitable relationships in chat-
rooms. The fact is, Web sites, chat-room users, and downloaded programs may not have
the best interests of you, your family, or your workers at heart. The unscrupulous may try to
manipulate the people you care about or try to gain trust, which may result in unacceptable
access to your family, your coworkers, your computer, or personal information.
Using the Parental Controls menu, you can prevent access to unwanted Web content by:
Blocking sites and keywords. See page 68.
Blocking services. See page 75.
Blocking devices and access types. See page 78.
You can also define report filters and generate reports. See page 82.
Blocking Sites and Keywords, and Selecting Trusted Computers
Using the Managed Sites menu, you can block access to certain Web sites from local
computers. To display the Managed Sites menu, click Parental Control in the menu bar.
Figure 38 shows an example of the Managed Sites menu.
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Figure 38. Example of Managed Sites Menu
Blocking Sites
To block sites:
11. If the Managed Sites menu is not displayed, click Parental Control in the menu bar.
12. Next to Enabled Managed Sites, click Enabled.
13. Under Blocked Sites, click ADD. The Add Blocked Domain menu appears (see Figure
39).
14. Complete the fields in the Add Blocked Domain menu (see Table 15).
15. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
site appears below Blocked Sites on the Managed Sites menu.
16. To block additional sites, repeat steps 3 through 5.
17. To edit a blocked site, click the EDIT button next to the blocked site you want to modify,
edit the settings on the Add Blocked Domain menu (see Table 15), and click SAVE.
18. To delete a blocked site, click the X next to the site. When the Delete URL Block Rule
message appears, click OK to delete the blocked URL or CANCEL to retain it. If you
clicked OK, the URL is removed from the Blocked Sites area on the Managed Sites
menu.
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Figure 39. Add Blocked Domain Menu
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Table 15. Add Blocked Domain Menu
Option Description
URL Enter the URL you want blocked.
Always Block? Select whether you want the Gateway to always block this URL. Choices are
• No = the Gateway does not always block this URL. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this URL.
• Yes = the Gateway always blocks this URL until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this URL.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this URL.
Set Blocked Days
Select All Click this link to select all seven days. This link is not available if you selected Yes for Always
Block?
Select None Click this link to deselect all seven days. This link is not available if you selected Yes for
Always Block?
Monday – Sunday Check the check boxes that correspond to the days when you want the Gateway to block this
URL. These checkboxes are not available if you selected Yes for Always Block?
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Domain menu.
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Blocking Keywords
To block keywords:
19. If the Managed Sites menu is not displayed, click Parental Control in the menu bar.
20. Next to Enabled Managed Sites, click Enabled.
21. Under Blocked Keywords, click ADD. The Add Blocked Keyword menu appears (see
Figure 40).
22. Complete the fields in the Add Blocked Keyword menu (see Table 16).
23. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
keyword appears below Blocked Keywords on the Managed Keywords menu.
24. To block additional keywords, repeat steps 3 through 5.
25. To edit a blocked keyword, click the EDIT button next to the blocked keyword you want to
modify, edit the settings on the Add Blocked Keyword menu (see Table 16), and click
SAVE.
26. To delete a blocked keyword, click the X next to the keyword. When the Delete Keyword
Block Rule message appears, click OK to delete the blocked keyword or CANCEL to retain
it. If you clicked OK, the keyword is removed from the Blocked Keywords area on the
Managed Keywords menu.
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Figure 40. Add Blocked Keyword Menu
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Table 16. Add Blocked Keyword Menu
Option Description
Keyword Enter the keyword you want blocked.
Always Block? Select whether you want the Gateway to always block this keyword. Choices are
• No = the Gateway does not always block this keyword. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this Keyword.
• Yes = the Gateway always blocks this keyword until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this keyword.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this keyword.
Set Blocked Days
Select All Click this link to select all seven days. This link is not available if you selected Yes for Always
Block?
Select None Click this link to deselect all seven days. This link is not available if you selected Yes for
Always Block?
Monday – Sunday Check the check boxes that correspond to the days when you want the Gateway to block this
keyword. These checkboxes are not available if you selected Yes for Always Block?
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Keyword menu.
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Blocking Services
Using the Managed Services menu, you can block access to certain services from local
computers. This feature can be used to protect children from accessing inappropriate
services.
To display the Managed Services menu, click Parental Control in the menu bar, and then
click the Managed Services submenu. Figure 41 shows an example of the menu.
Figure 41. Example of Managed Services Menu
To block services:
27. If the Managed Services menu is not displayed, click Parental Control in the menu bar,
and then click the Managed Services submenu.
28. Next to Enabled Managed Services, click Enabled.
29. Under Blocked Services, click ADD. The Add Blocked Service menu appears (see Figure
42).
30. Complete the fields in the Add Blocked Service menu (see Table 17).
31. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
service appears below Blocked Services on the Managed Services menu.
32. To block additional services, repeat steps 3 through 5.
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33. To edit a blocked service, click the EDIT button next to the blocked service you want to
modify, edit the settings on the Add Blocked Service menu (see Table 17), and click SAVE.
34. To delete a blocked service, click the X next to the service. When the Delete Service Block
Rule message appears, click OK to delete the blocked URL or CANCEL to retain it. If you
clicked OK, the service is removed from the Blocked Services area on the Managed
Services menu.
Figure 42. Add Blocked Service Menu
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Table 17. Add Blocked Service Menu
Option Description
User Defined Service Enter the service you want blocked.
Protocol The type of protocol associated with the service to be blocked. Choices are:
• TCP (default)
• UDP
• TCP/UDP
Start Port Starting port number on which the block will be applied. If necessary, contact the application
vendor for this information.
End Port Ending port number on which the block will be applied. If necessary, contact the application
vendor for this information.
Always Block? Select whether you want the Gateway to always block this service. Choices are
• No = the Gateway does not always block this service. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this service.
• Yes = the Gateway always blocks this service until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this service.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this service.
Set Blocked Days
Select All Click this link to select all seven days. This link is not available if you selected Yes for Always
Block?
Select None Click this link to deselect all seven days. This link is not available if you selected Yes for
Always Block?
Monday – Sunday Check the check boxes that correspond to the days when you want the Gateway to block this
service. These checkboxes are not available if you selected Yes for Always Block?
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Domain menu.
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Managing Devices and Access Types
Using the Managed Devices menu, you can enable or disable managed devices and allow
or block all access types. You can also add devices you want to block.
To display the Managed Devices menu, click Parental Control in the menu bar, and then
click the Managed Devices submenu. Figure 43 shows an example of the menu.
Figure 43. Example of Managed Devices Menu
Enabling or Disabling Managed Devices
By default, all managed devices are disabled. To enable them, click Enabled next to Enable
Managed Devices.
Enabling or Disabling Access Types
By default, all access types are blocked. To unblock them, click Allow All next to Access
Type.
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Adding Blocked Devices
To add devices you want to block:
35. If the Managed Devices menu is not displayed, click Parental Control in the menu bar,
and then click the Managed Devices submenu.
36. Next to Blocked Devices, click ADD BLOCKED DEVICE. The Add Blocked Device menu
appears (see Figure 44).
37. Completed the fields in the Add Block Device menu (see Table 18).
38. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
device appears below Blocked Devices on the Managed Devices menu.
39. To block additional devices, repeat steps 3 through 5.
40. To edit a blocked device, click the EDIT button next to the blocked device you want to
modify, edit the settings on the Add Blocked Device menu (see Table 18), and click SAVE.
41. To delete a blocked device, click the X next to the service. When the Delete Blocked MAC
Rule message appears, click OK to delete the blocked device or CANCEL to retain it. If
you clicked OK, the device is removed from the Blocked Devices area on the Managed
Devices menu.
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Figure 44. Add Blocked Device Menu
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Table 18. Add Blocked Device Menu
Option Description
Auto-Learned Devices To select a device that the Gateway automatically learned, select the device under Auto-
Learned Devices.
Custom Device To select a custom device, enter the name and MAC address of the device in the Computer
Name and MAC Address fields below Custom Device.
Always Block? Select whether you want the Gateway to always block this device. Choices are
• No = the Gateway does not always block this device. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this device.
• Yes = the Gateway always blocks this device until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this device.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this device.
Set Blocked Days
Select All Click this link to select all seven days. This link is not available if you selected Yes for Always
Block?
Select None Click this link to deselect all seven days. This link is not available if you selected Yes for
Always Block?
Monday – Sunday Check the check boxes that correspond to the days when you want the Gateway to block this
device. These checkboxes are not available if you selected Yes for Always Block?
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Device menu.
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Generating Reports
The Gateway provides a reporting feature for generating reports containing selected log
messages. Using the Reports menu, you can define filters for reports and print or download
reports.
To display the Reports menu, click Parental Control in the menu bar, and then click the
Reports submenu. Figure 45 shows an example of the menu.
Note: You can use the Logs menu to apply log filters to reports. For more information. See
page 94.
Figure 45. Example of Reports Menu
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Defining Report Filters
The Report Filters area on the Reports menu lets you select the type of Reports you want
to generate and the timeframe that the report is to cover.
To define a report filter:
1. If the Reports menu is not displayed, click Parental Control in the menu bar, and then
click the Reports submenu.
2. Perform the following steps under Report Filters:
a. Using the Report Type drop-down list, select the report to which you want to apply a
filter, Choices are:
All
Managed Sites
Managed Services
Managed Devices
b. By default, the report is generated for today. To change this timeframe, select a
different timeframe from the Time Frame drop-down list.
c. Click GENERATE REPORT to apply the filter.
Printing or Downloading the Report
After defining a report filter, use the following steps under All Reports to print or download
the report:
3. To print the report with the filter applied, click PRINT.
4. To download the report with the filter applied, click DOWNLOAD.
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Using Advanced Features
Using the Advanced Features menu, you can:
Enable or disable port forwarding. See page 84.
Enable or disable port triggering. See page 87.
Enable or disable port blocking. See page 91.
Use the Gateway’s UPnP feature to auto-discover devices. See page 92.
Enabling or Disabling Port Forwarding
Using the Firewall menu (described on page 53), you can configure the Gateway to create a
firewall between your internal network and the Internet. A firewall keeps unwanted traffic
from the Internet away from your networked computers. There may be times, however, when
you want a “tunnel” to be created through your firewall, so computers on the Internet can
communicate to one of the computers on your LAN using a single port. This is handy for
running Web servers, game servers, FTP servers, or even video conferencing.
Port forwarding allows outside users access to the computers on your LAN using a given
port or range of ports. Using port forwarding, for example, one of your computers could run a
Web server (port 80) while another computer could run an FTP server (port 23) - both using
the same IP address.
You configure the Gateway’s port forwarding feature using the Port Forwarding menu. To
display this menu, click Advanced in the menu bar, and then click the Port Forwarding
submenu in the menu bar. Figure 46 shows an example of the menu.
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Figure 46. Example of Port Forwarding Menu
Adding a Port Forwarding Rule
To add a port forwarding rule:
1. If the Port Forwarding menu is not displayed, click Advanced in the menu bar, and then
click the Port Forwarding submenu.
2. Confirm that Enabled is selected (green) next to Enable Port Forwarding. If it isn’t click
Enabled.
3. Click the ADD PORT FORWARD button. The Add Service menu appears (see Figure 47).
4. Complete the fields in the Add Service menu (see Table 19).
5. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the port forwarding rule appears below Port Forwarding on the Port Forwarding menu.
6. To add more port forwarding rules, repeat steps 3 through 5.
7. To edit a port forwarding rule, click the EDIT button next to the rule you want to modify, edit
the settings on the Add Service menu (see Table 18), and click SAVE.
8. To delete a port forwarding rule, click the X next to the rule. When the Delete Port
Forwarding Rule message appears, click OK to delete the port forwarding rule or CANCEL
to retain it. If you clicked OK, the rule is removed from the Port Forwarding area on the
Port Forwarding menu.
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Figure 47. Add Service Menu
Table 19. Add Service Menu
Option Description
Service Name Name for identifying the service. The name is for reference purposes only.
Service Type The protocol you want to use with the service. Choices are:
• TCP
• UDP
• TCP/UDP (default)
Service IP Address IP address of the LAN computer or server that is running the service.
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 Port(s) 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 computer server listens for traffic/data
on this port (or these ports).
Enable Port Range Check this box to enable the private port range specified in Private Port(s).
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Device menu.
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Disabling Port Forwarding
To disable port forwarding:
1. If the Port Forwarding menu is not displayed, click Advanced in the menu bar, and then
click the Port Forwarding submenu.
2. Next to Enable Port Forwarding, click Disabled. The ADD PORT FORWARD button
becomes unavailable and all port forwarding rules that have been defined turn gray to
show they are disabled.
Enabling Port Forwarding
To enable port forwarding:
1. If the Port Forwarding menu is not displayed, click Advanced in the menu bar, and then
click the Port Forwarding submenu.
2. Next to Enable Port Forwarding, click Enabled. The ADD PORT FORWARD button turns
green, and all port forwarding rules that have been defined become available, along with
the EDIT and delete buttons.
Enabling or Disabling Port Triggering
Using the Port Triggering 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 Port Triggering menu, click Advanced in the menu bar, and then click the
Port Triggering submenu in the menu bar. Figure 48 shows an example of the menu.
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Figure 48. Example of Port Triggering Menu
Adding a Port Triggering Rule
To add a port triggering rule:
1. If the Port Triggering menu is not displayed, click Advanced in the menu bar, and then
click the Port Triggering submenu.
2. Next to Enable Port Triggering, click Enabled.
3. Click the ADD PORT FORWARD button. The Port Triggering Add menu appears (see
Figure 49).
4. Complete the fields in the Port Triggering Add menu (see Table 20).
5. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the port triggering rule appears below Port Triggering on the Port Triggering menu.
6. To add more port triggering rules, repeat steps 3 through 5.
7. To edit a port triggering rule, click the EDIT button next to the rule you want to modify, edit
the settings on the Port Triggering Add menu (see Table 20), and click SAVE.
8. To delete a port triggering rule, click the X next to the rule. When the Delete Port Triggering
Rule message appears, click OK to delete the port triggering rule or CANCEL to retain it. If
you clicked OK, the rule is removed from the Port Triggering area on the Port Triggering
menu.
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Figure 49. Port Triggering Add Menu
Table 20. Port Triggering Add Menu
Option Description
Service Name Name for identifying the trigger. The name is for reference purposes only.
Service Type The type of protocol you want to use with the trigger. Choices are:
• TCP
• UDP
• TCP/UDP (default)
For example, to track the H.323 protocol, the protocol type should be TCP.
Trigger Port From From port ranges of the special application. For example, to track H.323 protocol, the From
port should be 1720.
Trigger Port To To port ranges of the special application. For example, to track H.323 protocol, the To port
should be 1720.
Target Port From Starting port range for the target port listening for the special application.
Target Port To Ending port range for the target port listening for the special application.
Interval Specify the interval between 50 and 30000 between two continuous sessions. If the interval
exceeds this time interval setting, the sessions are considered to be unrelated.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Device menu.
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Disabling Port Triggering
To disable port triggering:
1. If the Port Triggering menu is not displayed, click Advanced in the menu bar, and then
click the Port Triggering submenu.
2. Next to Enable Port Triggering, click Disabled. The ADD PORT TRIGGER button
becomes unavailable and all port triggering rules that have been defined turn gray to show
they are disabled.
Enabling Port Triggering
To enable port triggering:
1. If the Port Triggering menu is not displayed, click Advanced in the menu bar, and then
click the Port Triggering submenu.
2. Next to Enable Port Triggering, click Enabled. The ADD PORT TRIGGER button turns
green, and all port triggering rules that have been defined become available, along with the
EDIT and delete buttons.
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Enabling or Disabling Port Blocking
By default, all four Ethernet ports on the Gateway are enabled and configured to auto-
negotiate the highest speed and duplex settings. If these settings prevent the Gateway from
connecting with other devices, you can use the Port Blocking menu to configure the
Gateway’s Ethernet ports to use specific speed and duplex settings. The Port Blocking menu
also let you disable the Ethernet ports. Each port can be configured or disabled
independently of the other Ethernet ports on the Gateway.
To display the Port Blocking menu, click Advanced in the menu bar, and then click the Port
Blocking submenu in the menu bar. Figure 50 shows an example of the menu.
Figure 50. Example of Port Blocking Menu
To change a port from its default settings, perform the following procedure on the row that
corresponds to the Ethernet port you want to configure.
1. Under the Auto Negotiate column, select No.
2. Under the Mode column, select Full for full-duplex or Half for half-duplex to force the
selected port to use the duplex setting you select.
3. Under Speed, select the fixed speed that the port will use.
4. To disable the port, check the checkbox in the Disable Port column.
5. Click the SAVE button.
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Note: If you disable the port through which you are accessing the Gateway’s Web interface,
you are disconnected and your session ends. You can reconnect to the Gateway using one of
the other enabled LAN ports.
Discovering Devices
Using the Device Discovery menu, the Gateway can obtain protocol addresses of
neighboring devices and discover the platform of those devices.
To display the Device Discovery menu, click Advanced in the menu bar, and then click the
Device Discovery submenu in the menu bar. Figure 51 shows an example of the menu and
Table 21 describes it.
Figure 51. Example of Device Discovery Menu
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Table 21. Device Discovery Menu
Option Description
Enable UPnP Determines whether the Gateway uses its UPnP feature to communicate with other devices or
your operating system.
• Enabled = allows the Gateway to use its UPnP feature to communicate with other devices
or your operating system. (default)
• Disabled = prevents the Gateway from using its UPnP feature to communicate with other
devices or your operating system. Also, may be disabled if your operating system does not
support UPnP.
Advertisement Period How often the Gateway broadcasts its UPnP information (if UPnP is enabled). This value can
range from 1 to 1440 minutes. The default period is 30 minutes. Shorter durations ensure that
control points have current device status at the expense of additional network traffic. Longer
durations can compromise the freshness of the device status, but can significantly reduce
network traffic.
Time To Live A counting mechanism to determine how long a packet is valid before it reaches its
destination. Each time a TCP/IP packet passes through a router, it decrements its Time To
Live count. When the count reaches zero, the packet is dropped by the router. This ensures
that errant routing and looping aimless packets will not flood the network. The number of hops
can range from 1 to 255. The default value is 5 hops, which should be fine for most networks.
If you notice that some devices are not being updated or reached correctly, you might want to
increase this value slightly.
Enable Zero Config Determines whether zero configuration is enabled or disabled. Zero configuration networking
automatically creates a usable IP network, without manual operator intervention or special
configuration servers. It allows nonexpert users to connect computers, networked printers,
and other network devices and expect a functioning network to be established automatically.
• Enabled = enables support for zero configuration.
• Disabled = disables support for zero-configuration (default)
SAVE button Click this button to save your settings.
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Troubleshooting the Gateway
Using the Troubleshooting menu, you can:
Define log filters. See page 94.
Test connectivity to a destination or IP address. See page 96.
Reset the Gateway, reset your Wi-Fi router, or restore the Gateway to its factory default
settings. See page 98.
Change the password used to log in to the Gateway’s Web interface. See page 99.
Note: For additional troubleshooting procedures, see Chapter 6.
Defining Log Filters
Using the Logs menu, you can define the filters applied to the Gateway’s system, event, and
firewall logs. You can also specify the timeframe to be covered by the logs, as well as
download and print the logs.
To display the Logs menu, click Troubleshooting in the menu bar, and then click the Logs
submenu in the menu bar. Figure 52 shows an example of the menu.
Figure 52. Example of the Logs Menu
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Defining Log Filters
The Log Filters area on the Logs menu lets you select the type of logs you want to generate
and the timeframe that the log is to cover.
To define a log filter:
1. If the Logs menu is not displayed, click Troubleshooting in the menu bar, and then click
the Logs submenu.
2. Perform the following steps under Log Filters:
a. Using the Log Type drop-down list, select the log to which you want to apply a filter,
Choices are:
System Logs
Event Logs
Firewall Logs
b. By default, the log is generated for today. To change this timeframe, select a different
timeframe from the Time Frame drop-down list.
c. Click SHOW LOGS to apply the filter.
Printing or Downloading Log
After defining a log filter, use the following steps under System Logs to print or download
the log:
1. To print the log with the filter applied, click PRINT.
2. To download the log with the filter applied, click DOWNLOAD.
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Testing Connectivity to Destination and IP Addresses
There may be times when you encounter a problem trying to reach a certain destination. If
you examine the Gateway’s configuration and operation and everything looks fine, the
problem might be with a router up the line from the Gateway or with the line itself.
To help you identify such issues, the Network Diagnostic Tools menu lets you test
connectivity to a destination or IP address. To display the Network Diagnostic Tools menu,
click Troubleshooting in the menu bar, and then click the Diagnostic Tools submenu in
the menu bar. Figure 53 shows an example of the menu.
Figure 53. Example of the Network Diagnostic Tools Menu
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Testing Connectivity to a Destination Address
To test the Gateway’s connectivity to a destination address:
1. If the Network Diagnostic Tools menu is not displayed, click Troubleshooting in the menu
bar, and then click the Diagnostic Tools submenu.
2. Under Test Connectivity Results, enter a destination address in the Destination
Address field.
Note: This procedure assumes that the destination address you enter is valid and
operational.
3. Click the TEST CONNECTIVITY button. The Packets Sent and Packets Received
counters show whether packets the number of packets sent and received during the test.
4. To stop the test, click the STOP button.
If the test is successful, you know that the destination you are having difficulty reaching is
alive and physically reachable. If there are routers between the Gateway and the destination
you are having difficulty reaching, the problem might be at one of the routers.
Testing Connectivity to an IP Address
To test the Gateway’s connectivity to an IP address:
5. If the Network Diagnostic Tools menu is not displayed, click Troubleshooting in the menu
bar, and then click the Diagnostic Tools submenu.
6. Under Check for IP Address Results, enter an IP address in the IP Address field.
Note: This procedure assumes that the IP address you enter is valid and operational.
7. Click the CHECK FOR IP ADDRESSES button. The Connectivity indicator shows the
results of the test.
8. To stop the test, click the STOP button.
If the test is successful, you know that the IP address you are having difficulty reaching is
alive and physically reachable. If there are routers between the Gateway and the IP address
you are having difficulty reaching, the problem might be at one of the routers.
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Restoring or Rebooting the Gateway
The Restore / Reboot Gateway menu provides buttons for performing the following activities:
RESET - restarts the Gateway while keeping any overrides you made to the Gateway’s
factory default settings.
RESET WI-FI Router - resets the Wi-Fi router without affecting the Gateway.
RESTORE FACTORY SETTINGS - returns the Gateway to its factory default settings.
Any overrides you made to the default settings will be removed. This button in
functionally equivalent to using the reset button to reset the Gateway (see “Using the
Reset Button” on page 17).
To display the Network Diagnostic Tools menu, click Troubleshooting in the menu bar, and
then click the Restore Reboot Gateway submenu in the menu bar. Figure 54 shows an
example of the menu.
Figure 54. Example of the Restore / Reboot Gateway Menu
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Changing the Login Password
The Change Password menu lets you change the password used to log in to the Gateway’s
Web interface. For security, we recommend you change the default log in password the first
time you log in to the Web management interface to protect the Gateway from being
tampered with.
To display the Change Password, click Troubleshooting in the menu bar, and then click the
Change Password submenu in the menu bar. Figure 55 shows an example of the menu
and Table 22 describes the menu.
Figure 55. Example of the Change Password Menu
Table 22. Change Password Menu
Option Description
Current Password Enter the current case-sensitive administrator password. For security purposes, every typed
character appears as a dot (). The default password is not shown for security purposes.
New Password Enter the new case-sensitive administrator password you want to use. A password can
contain alphanumeric characters and spaces. For security purposes, every typed character
appears as a dot ().
Re-enter New Password Enter the same case-sensitive administrator password you typed in the New Password field.
For security purposes, every typed character appears as a dot ().
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Change Password menu.
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5 Configuring the Gateway’s mso Interface
After configuring your computer for TCP/IP and following the preconfiguration guidelines in
Chapter 3, use that computer’s Web browser to configure your SMCD3GNV Gateway using
the Gateway’s mso interface. This chapter describes how to use your computer’s Web
browser to configure the Gateway.
The topics covered in this chapter are:
Accessing the Gateway’s Web Management (page 37)
Understanding the Web Management Interface Menus (page 38)
Web Management Interface Menus (page 40)
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Accessing the Gateway’s Web Management
After configuring your computer for TCP/IP and reviewing the guidelines on the previous
page, configure the Gateway using its Web-based management interface. From your Web
browser, 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 display the SMCD3GNV Wireless Cable Modem Gateway’s Web-based management
screens, use the following procedure.
1. Launch a Web browser.
Note: Your computer does not have to be online to configure the Gateway.
2. In the browser address bar, type http://10.0.0.1 and press the Enter key. The Login screen
appears (see Figure 18).
Figure 56. Login Screen
3. In the Login User Password screen, enter the default username and x default password
furnished by SMC Networks. Both are case sensitive. For security, each password
character appears as a dot (●). After you log in, we recommend you change the default
password on the Change Password menu (see “Changing the Login Password” on page
99).
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Note: Your cable modem operator may customize the login password, so please check with
your operator for the correct password to use.
4. Click the LOGIN button to access the Gateway’s Web interface. The At a Glance menu
appears, showing connection status information about the Gateway. You can also display
this menu any time by clicking At a Glance in the menu bar.
Understanding the Web Management Interface Menus
The left side of the management interface contains a menu bar for selecting menus to
configure the Gateway. When you click a menu, information and any configuration settings
associated with the menu appear in the main area (see Figure 19). If the displayed
information exceeds the main area, scroll bars appear to the right of the main area so you
can scroll up and down through the information.
The top of the main area shows the path (or “breadcrumb”) associated with the information
displayed in the main area. For example, if you click the Status submenu in the Connection
menu, Connection > Status appears at the top of the main area.
The top-right area shows the username used to log in to the Web interface, along with links
for changing the login password and logging out of your current session.
Below the login user name and links are status icons that show the:
Percentage of battery power remaining
Gateway’s Internet access
Status of the Gateway’s wireless connection
Firewall security level
A control panel at the bottom of the menu provides links for accessing comcast.net, help,
security, smartzone, and customer central.
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Figure 57. Main Areas on the Web Management Interface
Some menus in the menu bar 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
Connection menu, the submenus in Figure 58 appear.
Figure 58. Example of Connection Submenus
Menu bar
Control Panel
Main area
Status icons
Username
Logout and Change
Password Buttons
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Web Management Interface Menus
Table 4 describes the menus in the Web management interface.
In Table 4 and the sections in this chapter, angle brackets show the path of menus and
submenus. For example, Gateway > Connection > XFINITY Network means you click the
Gateway menu in the menu bar, and then click the Connection and XFINITY Network
submenus below Gateway. The same convention is used in the breadcrumbs displayed in
the Gateway configuration menus, so you can keep track of your location within the
Gateway’s Web management interface.
Table 23. Web Management Interface Menus and Submenus
Menus and Submenus Description See Page
Gateway > At a Glance View information about your home network and connected devices. 107
Gateway > Email Notification Configure the Gateway to send email notifications when there is a
firewall and/or parental control breach.
108
Gateway > Connection > Status View and edit the settings for your local IP network, and view the status
of the Wi-Fi network and XFINITY network.
111
Gateway > Connection > Local IP Network View and change the Gateway’s IPv4 and IPv6 settings. 112
Gateway > Connection > WiFi View and edit the Gateway’s basic and advanced wireless settings. 114
Gateway > Connection > XFINITY Network View XFINITY network settings and initialization procedure information,
including cable modem and downstream channel bonding values.
121
Gateway > Firewall View and edit the security level of the Gateway’s internal firewall. 123
Gateway > Software View the software version and packet cable version for the Gateway. 125
Gateway > Hardware > System Hardware View information about the Gateway system hardware. 127
Gateway > Hardware > Battery View information about the Gateway’s internal battery. 128
Gateway > Hardware > LAN View the link status and Media Access Control (MAC) address for the
Gateway’s four Ethernet ports.
129
Gateway > Hardware > WiFi View the status and MAC address of the Gateway’s Wi-Fi port. 130
Gateway > Wizard Use a wizard to set up your home network. 131
Connected Devices > Computers View computers connected to the Gateway’s LAN, add computer’s with
static IP addresses to the Gateway’s LAN, and add WiFi-protected
clients to the Gateway’s LAN.
135
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Table 23. Web Management Interface Menus and Submenus
Menus and Submenus Description See Page
Parental Control > Managed Sites Restrict access to Web sites for non-trusted computers on the network. 142
Parental Control > Managed Services Restrict access to certain services and applications for non-trusted
computers on the network
148
Parental Control > Managed Devices Enable or disable managed devices, allow or block all access types,
and add devices you want to block.
152
Parental Control > Reports Define a default report filter and generate reports. 156
Advanced > Port Forwarding Enable the Gateway’s port forwarding feature to create a “tunnel”
through the Gateway firewall.
157
Advanced > Port Triggering Configure the Gateway to detect port triggers for multiple-session
applications and allow them to pass through the firewall.
160
Advanced > Remote Management Configure the Gateway for remote management using HTTP, Hypertext
Transfer Protocol Secure (HTTPS), Telnet, Secure Shell (SSH), Simple
Network Management Protocol (SNMP), and/or HNAP.
163
Advanced > DMZ Configure the Gateway to provide a local computer with unrestricted
two-way Internet access by defining it as a Virtual Demilitarized Zone
(DMZ) host.
165
Advanced > Routing Configure how the Gateway adjusts to physical changes in the
network’s layout and exchanges routing tables with other routers.
167
Advanced > Dynamic DNS Allows the Gateway to notify a domain name server to change, in real
time, the active DNS configuration of its configured hostnames,
addresses, or other information stored in DNS.
169
Advanced > Device Discovery Configure the Gateway to obtain protocol addresses of neighboring
devices and discover the platform of those devices.
171
Troubleshooting > Logs Define a default log filter and generate logs. 174
Troubleshooting > Disanostic Tools Test the Gateway’s connectivity to a destination or IP address. 175
Troubleshooting > Restore/Reboot Gateway Reset the Gateway, reset the Wi-Fi router only, restore the Gateway’s
wireless settings only, or restore the Gateway’s factory settings.
177
Troubleshooting > Change Password Change the password used to log in to the Gateway’s Web
management interface.
178
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Viewing At-a-Glance Configuration Settings
The At a Glance menu appears when you log in to the Gateway’s Web interface. You can
also display this menu by clicking Gateway > At a Glance in the menu bar. Figure 59 shows
an example of the At a Glance menu and Table 24 describes the menu.
Figure 59. Example of the At a Glance Menu<<screen missing items??>>
Table 24. At a Glance Menu
Option Description
Home Network Shows the status of your home network’s Ethernet and Wi-Fi home status. A green check mark indicates normal
operation. This area also shows the Gateway’s firewall security level. To change this level, see “Configuring
Firewall Settings” on page 123.
Connected
Devices
Shows the names of the devices connected to the Gateway. A View Connected Devices button opens the
Computers menu for viewing devices that the Gateway automatically detects using DHCP (see page 135).
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Configuring Email Notifications
Using the Email Notification menu, you can configure the Gateway to send email
notifications when there is:
A firewall and/or parental control breach
An alert or warning <true??>>
If desired, you can configure the Gateway to send the logs with the email.
To display this menu, click Gateway > Email Notification in the menu bar. Figure 60 shows
an example of the Email Notification menu and Table 25 describes the menu.
Figure 60. Email Notification Menu
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Table 25. Email Notification Menu
Option Description
Recipient Email Email address of the recipient who will receive email notifications.<<can you specify more than one recipient??>>
Notification Types
Firewall Breach Determines whether an email notification is sent when the Gateway detects a firewall breach.
• Yes = Gateway sends a notification when it detects a firewall breach.
• No = Gateway does not send a notification when it detects a firewall breach. (default)
Parental Control
Breach
Determines whether an email notification is sent when the Gateway detects a parental control breach.
• Yes = Gateway sends a notification when it detects a parental control breach.
• No = Gateway does not send a notification when it detects a parental control breach. (default)
Alerts or
Warnings
Determines whether an email notification is sent when a Gateway alert or warning occurs.
• Yes = email notification is enabled.
• No = email notification is disabled. (default)
Send Logs Determines whether the Gateway sends logs with the email notification.
• Yes = logs are sent with the email notification.
• No = logs are not sent with the email notification. (default)
Mail Server Configuration
SMTP Server
Address
The address of the SMTP server through which the Gateway will send email notifications. For this configuration to
succeed, this procedure assumes that your SMTP server is operational and configured properly.
Sender’s Email
Address
The email address that will appear as the sender of the email notification.
Sender’s
Username
The name that will appear as the sender of the email notification.
Sender’s
Password
The password used by the sender to send email.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Email Notification menu.
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Configuring Connections
Using the submenus below Connections, you can:
View and edit the settings for your local IP network, and view the Gateway’s Wi-Fi and
XFINITY network connections. See page 111.
Configure the Gateway’s IPv4 or IPv6 settings. See page 112.
View and edit basic and advanced wireless settings. See page 114.
View XFINITY network information. See page 121.
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Viewing the Gateway’s Connection Status
The Status menu lets you view and edit the settings for your local IP network. You can also
use this menu to view the status of the Wi-Fi network and XFINITY network.
To display the Status menu, click Gateway > Connection > Status in the menu bar. Figure
61 shows an example of the Status menu and Table 26 describes the menu.
Figure 61. Example of the Status Menu
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Table 26. Status Menu
Option Description
Local IP Network Displays information about the local network. The EDIT button opens the Local IP
Configuration menu for viewing and changing IPv4 or IPv6 settings (see “Viewing and Editing
Your Local IP Configuration” on page 112).
WiFi Network Lets you view information about your Wi-Fi network. A VIEW button opens the WiFi menu for
viewing the link status and MAC address of the Gateway’s WiFi LAN port (see “Viewing Wi-Fi
Settings” on page 130).
XFINITY Network Lets you view information about the XFINITY network. A VIEW button opens the Comcast
Network menu for viewing the initialization procedures, including cable modem, downstream,
and upstream information (see “Viewing XFINITY Network Information” on page 121).
Viewing and Editing Your Local IP Configuration
The Local IP Configuration menu lets you view and change the Internet Protocol (IP)
settings used by the Gateway. Fields are provided for configuring IP version 4 (IPv4) and the
newer IP version 6 (IPv6).
To display the Local IP Configuration menu, click Gateway > Connection > Local IP
Network in the menu bar. Figure 62 shows an example of the Local IP Configuration menu
and Table 27 describes the menu.
Figure 62. Example of Local IP Configuration Menu
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Table 27. Local IP Configuration Menu
Option Description
IPv4
(for computers that use IPv4 Messaging)
Gateway Address IPv4 IP address that the Gateway is to use.
Subnet Mask IPv4 subnet mask that the Gateway is to use.
DHCP Beginning Address Starting IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the starting IP address range.
DHCP Ending Address Ending IP address range for the pool of allocated for DHCP IP addresses. The first two fields
match the first two octets in the Gateway’s IP address and cannot be changed. The last two
fields let you enter the final two octets in the ending IP address range.
DHCP 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.
SAVE SETTINGS button After configuring your IPv4 settings, click this button to save them.
RESTORE DEFAULT SETTINGS
FOR IPV4 button
Resets the Gateway to the factory default IPv4 settings.
IPv6
(for computers that use IPv6 Messaging)
Enable IPv6 Check this box to configure the Gateway to use IPv6 settings.
Gateway Address IPv6 IP address that the Gateway is to use.
Prefix Length A read-only value that sows the IPv6 prefix length, which is always 64.
SAVE SETTINGS button After enabling or disabling IPv6, click this button to apply.
RESTORE DEFAULT SETTINGS
FOR IPV6 button
Resets the Gateway to the factory default IPv6 settings.
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Viewing and Editing Wireless Configuration
The Wireless menu lets you view and change the Gateway’s basic and advanced wireless
settings. To display the Wireless menu, click Gateway > Connection > WiFi in the menu
bar .
The Wireless menu is organized into the following areas:
Private WiFi and Public WiFi networks – see page 115
Private wireless basic settings – see page 116
Private advanced basic settings – see page 117
MAC filter settings – see page 119
WiFi client setup configuration (WPS) - see page 120
Connect to your WPS-supported device – see page 121
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Private and Public WiFI Networks
Figure 63 shows the Private and Public WiFI Network areas on the WiFi menu, and Table 28
describes the fields shown.
Figure 63. Wireless Menu - Private and Public WiFI Networks Areas
Table 28. Wireless Menu - Private and Public WiFI Networks Areas
Option Description
Private WiFi Network
Name
MAC Address
Security Mode
Shows the name MAC address, and security setting, if any, for each private wireless network
detected. An EDIT button is provided to change these settings.
Public WiFi Network
Name
MAC Address
Security Mode
Shows the name MAC address, and security setting, if any, for each public wireless network
detected. An EDIT button is provided to change these settings.
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Private Wireless Basic Settings
Figure 64 shows the private wireless basic settings on the WiFi menu, and Table 29
describes the fields shown.
Figure 64. Wireless Menu - Private Wireless Basic Settings
Table 29. Wireless Menu - Private Wireless Basic Settings
Option Description
Mode If wireless operation is enabled for the Gateway, this option selects the wireless mode used
by the Gateway. Choices are:
• 802.11 b/g = use this setting if you have a combination of IEEE 802.11b and IEEE 802.11g
devices on your network.
• 802.11g/n = use this setting if you have EEE 802.11g and IEEE 802.11n devices on your
network.
• 802.11 b/g/n = use this setting if you have a combination of IEEE 802.11b, IEEE 802.11g,
and IEEE 802.11n devices on your network. (default)
Channel Selection Select how the Gateway will select a channel for communicating over the wireless network.
Choices are:
• Automatic = the Gateway selects the channel automatically. (default)
• Manual = the Gateway uses the channel specified in the Channel option.
Channel If the Channel Selection option is Manual, specify the appropriate channel from the list
provided to correspond with your network settings. Choices are 1, 6, and 11. The default
setting is 6, which refers to radio frequency ranges within the 2.4 GHz range. You can change
this setting if necessary; however, all devices in your wireless network must use the same
channel to work properly.
SAVE BASIC SETTING button Click this button to save your changes to the private wireless basic settings.
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Private Wireless Advanced Settings
Figure 65 shows the private wireless basic settings on the WiFi menu, and Table 30
describes the fields shown.
Figure 65. Wireless Menu - Private Wireless Advanced Settings
Table 30. Wireless Menu - Private Wireless Advanced Settings
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)
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Option Description
Operation 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 multiple-input multiple-output
(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)
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 MSDUA (A-MSDU) Enables or disables aggregation of multiple MSDUs in one MPDU. Default is disable.
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.
HT Tx Stream Select 1 or 2 from the pull-down menu. Default is 2.
HT Rx Stream Select 1 or 2 from the pull-down menu. Default is 2.
WMM Power Save When checked, enables the Gateway’s power-management features for optimizing battery
life. Default is checked.
STBC Space Time Block Coding (STBC) is an 802.11n technique intended to improve the reliability
of data transmissions. With STBC, the data stream is transmitted on multiple antennas, so the
receiving system has a better chance of detecting at least one of the data streams. Choices
are:
• Disable = Gateway does not transmit the same data on multiple antennas. (default)
• Enable = Gateway transmits the same data stream on multiple antennas at the same time.
SAVE ADVANCED SETTING button Click this button to save your changes to the private wireless advanced settings.
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MAC Filter Settings
Figure 66 shows the MAC filter settings on the WiFi menu, and Table 31 describes the fields
shown.
Figure 66. Wireless Menu – MAC Filter Settings
Table 31. Wireless Menu – MAC Filter Settings
Option Description
SSID Network name of the of the primary wireless carrier.
MAC Filtering Mode Use MAC Filtering Mode to allow or deny all or certain wireless devices within the LAN from
accessing the Internet. You can either manually add a MAC address or select the MAC
address from the list of auto-learned wireless devices. The choices are:
• Allow- All = all wireless client stations can connect to the Internet. (default)
• Allow = allow only the wireless client stations in the Wireless Control List to connect to the
Internet.
• Deny = deny the wireless client stations in the Wireless Control List from connecting to the
Internet.
Wireless Control List Shows up to 16 wireless devices whose MAC addresses you have added.
Auto-Learned Wireless Devices Shows the wireless devices whose presence the Gateway has automatically learned.
Manually-Added Wireless Devices Enter a unique name and MAC address of the wireless devices that you want to manually add
to the Wireless Control List, then click Add to add the device.
SAVE FILTER SETTING button Click this button to save your changes to the MAC filter settings.
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WiFi Client Setup Configuration (WPS)
Figure 67 shows the WiFI client setup configuration settings on the WiFi menu, and Table 32
describes the fields shown.
Figure 67. Wireless Menu – WiFi Client Setup Configuration (WPS) Settings
Table 32. Wireless Menu – WiFi Client Setup Configuration (WPS) Settings
Option Description
SSID Network name of the of the primary wireless carrier.
MAC Filtering Mode Use MAC Filtering Mode to allow or deny all or certain wireless devices within the LAN from
accessing the Internet. You can either manually add a MAC address or select the MAC
address from the list of auto-learned wireless devices. The choices are:
• Allow- All = all wireless client stations can connect to the Internet. (default)
• Allow = allow only the wireless client stations in the Wireless Control List to connect to the
Internet.
• Deny = deny the wireless client stations in the Wireless Control List from connecting to the
Internet.
Wireless Control List Shows up to 16 wireless devices whose MAC addresses you have added.
Auto-Learned Wireless Devices Shows the wireless devices whose presence the Gateway has automatically learned.
Manually-Added Wireless Devices Enter a unique name and MAC address of the wireless devices that you want to manually add
to the Wireless Control List, then click Add to add the device.
SAVE FILTER SETTING button Click this button to save your changes to the MAC filter settings.
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Connect to Your WPS-Supported Device
Figure 68 shows the WiFI client setup configuration settings on the WiFi menu, and Table 33
describes the fields shown.
Figure 68. Wireless Menu – Connect to Your WPS-Supported Device Settings
Table 33. Wireless Menu – Connect to Your WPS-Supported Device Settings
Option Description
Push Button Click this option to use the WPS button on the top panel of the Gateway to configure WPS
(see Figure 3).
PIN Number Click this option if you need to enter a PIN to configure WPS.
Enter Wireless Client’s PIN If you clicked PIN Number, enter the PIN in this field.
PAIR WITH MY WIFI CLIENT button Click this button to pair (connect) the Gateway’s Wi-Fi settings with your Wi-Fi client.
Viewing XFINITY Network Information
The XFINITY Network menu is a read-only screen that displays:
XFINITY network settings
Initialization procedure information, including cable modem and downstream channel
bonding values
The information shown on this menu automatically updates (refreshes) every 10 seconds.
To display the XFINITY Network menu, click Gateway > Connection > XFINITY Network in
the menu bar. Figure 69 shows an example of the XFINITY Network menu.
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Figure 69. Example of XFINITY Network Menu
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Configuring Firewall Settings
The Firewall menu lets you view and edit the settings for the Gateway’s internal firewall. The
setting you select here is displayed at the top-right area of the Gateway’s Web interface.
To display the Firewall menu, click Gateway > Firewall in the menu bar. Figure 70 shows
an example of the Firewall menu and Table 34 describes the menu.
Figure 70. Example of the Firewall Menu
Table 34. Firewall Menu
Option Description
Maximum Security (High) Configures the Gateway’s firewall to the highest setting. Select this setting for environments
where security is critical.
Typical Security (Medium) Configures the Gateway’s firewall for typical (medium) security. Select this setting for
environments where security is important.
Minimum Security (Low) Configures the Gateway’s firewall for minimum (low) security. Select this setting for
environments where security is not important.
Custom Security Clicking this option displays the custom security settings in Figure 71. For more information,
see Table 35s.
SAVE SETTINGS button After configuring your firewall settings, click this button to save them.
RESTORE DEFAULT SETTINGS
button
Resets the Gateway to the factory default firewall settings.
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Figure 71. Custom Firewall Security Settings
Table 35. Custom Security Settings
Option Description
Block http Blocks HTTP downloads on ports 80 and 443.
Block ICMP Blocks Internet Control Message Protocol (ICMP) traffic at the outer perimeter of the Gateway
to protect against attacks such as cascading ping floods.
Block Multicast Blocks unsolicited multicast packets.
Block Peer-to-peer application Blocks peer-to-peer applications
Block IDENT Blocks identification (Ident) requests from Ident servers on port 113.
Note: Port 113 is associated with Ident. If a client program on a computer connected to the
Gateway contacts a remote server for services such as POP, IMAP, SMTP, or IRC, the
remote server returns a query to the “Ident” server running in many systems listening for
these queries on port 113. Essentially, the remote server is asking your system to identify
itself and you. This means that port 113 is often probed by attackers as a source of your
personal information.
Disable entire firewall Disables all of the Gateway’s firewall settings.
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Viewing System Software Settings
The Software menu is a read-only screen that shows the software version and packet cable
version associated with the Gateway.
To display the Software menu, click Gateway > Software in the menu bar. Figure 72 shows
an example of the Software menu.
Figure 72. Example of the Software Menu
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Configuring Hardware
Using the submenus below Hardware, you can view information about the:
Gateway system hardware, such as model, serial number, and processor speed. See
page 127.
Gateway’s battery status. See page 128.
Link status and MAC address of the Gateway’s four Ethernet ports. See page 129.
Wi-Fi link status and MAC address of the Gateway’s WiFi port . See page 130.
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Viewing System Hardware Settings
The System Hardware menu is a read-only screen that shows the Gateway’s system
hardware.
To display the System Hardware menu, click Gateway > Hardware > System Hardware in
the menu bar. Figure 73 shows an example of the System Hardware menu.
Figure 73. Example of the System Hardware Menu
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Viewing Battery Settings
The Battery menu is a read-only screen that shows information about the Gateway’s internal
battery.
To display the Battery menu, click Gateway > Hardware > Battery in the menu bar. Figure
74 shows an example of the Battery menu.
Figure 74. Example of the Battery Menu
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Viewing LAN Ethernet Settings
The LAN Ethernet menu is a read-only screen that shows the link status and MAC address
of the Gateway’s four Ethernet ports.
To display the LAN Ethernet menu, click Gateway > Hardware > LAN in the menu bar.
Figure 75 shows an example of the LAN Ethernet menu.
Figure 75. Example of the LAN Ethernet Menu
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Viewing Wi-Fi Settings
The WiFi menu is a read-only screen that shows the Wi-Fi link status and MAC address of
the Gateway’s Wi-Fi port.
To display the WiFi menu, click Gateway > Hardware > WiFi in the menu bar. Figure 76
shows an example of the WiFi menu.
Figure 76. Example of the WiFi Menu
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Configuring Your Home Network
The Home Network Wizard menu is part of a 2-page wizard you can use to configure your
home network.
To display the first page of the Home Network Wizard, click Gateway > Wizard in the menu
bar. Figure 77 shows an example of the first page of the Home Network Wizard and Table
36 describes the page.
Figure 77. Example of the First Page of the Home Network Wizard
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Table 36. Home Network Wizard – Step 1
Option Description
Gateway Name The name you want to assign to the Gateway. Assign a name so that this device will not be
confused with other devices on your wireless network. We recommend you use a name that is
meaningful to you so you can identify the Gateway easily. The Gateway name is case
sensitive and can contain from 8 to 20 alphanumeric characters, but no spaces.
Current Password Enter the current case-sensitive password. For security purposes, every typed character
appears as a dot (). The default password is not shown for security purposes. The password
is case sensitive and can contain from 8 to 20 alphanumeric characters, but no spaces.
New Password Enter the new password you want to use to protect your network. The password is case
sensitive and can contain from 8 to 20 alphanumeric characters, but no spaces. Spaces count
as password characters. For security purposes, every typed character appears as a dot ().
Re-enter New Password Enter the same case-sensitive password you typed in the New Password field. For security
purposes, every typed character appears as a dot ().
NEXT STEP button Click this button to display the second page of the Home Network Wizard (see Figure 78 and
Table 37).
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Figure 78. Example of the Second Page of the Home Network Wizard
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Table 37. Home Network Wizard – Step 2
Option Description
Enter WiFI Network Name Enter the name of your wireless network (typically, the SSID). The Wi-Fi name will make it
more obvious for others to know which network they are connecting to.
Encryption Method To prevent other computers in the area from using your Internet connection, secure your
wireless network by selecting an encryption method from this drop-down list. There are
several selections available, including the following. (Risky appears next to selections that
provide little or no protection).
• Open = wireless transmissions are not protected.
• WEP = basic encryption and therefore least secure (i.e., it can be easily cracked, but is
compatible with a wide range of devices including older hardware). WEP 64- and 128-bit
selections are provided.
• WPA-PSK = designed for home and small-office networks. Each wireless network device
encrypts the network traffic using a 256-bit key. Select this option if your wireless adapters
support WiFi Protected Access Pre-shared Key (WPA-PSK) mode.
• WPA2 = second generation of WPA that adds CCMP encryption with mathematically
proven security. Select this option if your wireless adapters support WPA2.
• WPA-Enterprise = provides extremely strong wireless security and adds authentication to
WEP's basic encryption. This option is mainly suited for enterprise users, not home users,
and can be selected if your wireless adapters support WPA-Enterprise.
• WPA2-Enterprise = second generation of WPA2-Enterprise. This option is mainly suited for
enterprise users, not home users, and can be selected if your wireless adapters support
WPA2-Enterprise.
Enter Network Password If you select one of the WEP or WPA encryption settings, enter the password used for
encryption and decryption.
FINISH button Click this button to complete the Home Network Wizard.
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Working with Connected Devices
Using the submenus under Connected Devices, you can:
View computers connected to the Gateway’s LAN
Add computer’s with static IP addresses to the Gateway’s LAN
Add WiFi-protected clients to the Gateway’s LAN
All of these activities are performed form the Computers menu. To display the Computers
menu, click Connected Devices in the menu bar. Figure 79 shows an example of the
Computers menu.
Figure 79. Example of the Computers Menu
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Manually Adding Computers with Static IP Addresses
To manually add a computer with a static IP address to the Gateway’s LAN, perform the
following procedure from the Computers menu.
1. Under Online Computers, click the ADD COMPUTER WITH STATIC IP button. The Add
Computer menu appears (see Figure 80).
2. Complete the fields in the Add Computer menu (see Table 38).
3. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the Computer menu reappears, with the computer you added displayed under Offline
Computers.
4. To add more computers with static IP addresses, repeat steps 1 through 3.
5. To edit an online computer, click the EDIT button next to the computer you want to modify,
edit the settings on the Edit Computer menu (see Figure 81 and Table 39), and click
SAVE.<<I did not see this button??>>
6. To delete an online or offline computer, click the X next to the computer. When the Delete
Computer message appears, click OK to delete the computer or CANCEL to retain it. If
you clicked OK, the computer is removed from the Computers menu.
Figure 80. Example of the Add Computer Menu
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Table 38. Add Computer Menu
Option Description
Host Name Host name of the computer you want to add.
Connection Read-only field that displays shows the network connection of Ethernet.
MAC Address MAC address of the computer you want to add. Add a colon between each 2-character ID in
the MAC address. For information about obtaining the MAC address of a computer, see
“Determining a Computer’s MAC Address” on page 196.
Static IP Address Static IP address of the computer you want to add. Add a period between each octet in the IP
address.
Comments Optional comments about the computer.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Computer menu.
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Figure 81. Example of the Edit Computer Menu
Table 39. Edit Computer Menu
Option Description
Host Name Read-only field that shows the host name of the computer you selected.
Connection Read-only field that displays shows the network connection of Ethernet.
Configuration Select whether the selected computer should be discovered by the Gateway using DHCP or a
static IP address. If you select Static IP, enter the static IP address in the Static IP Address
field.
MAC Address Edit the MAC address of the selected computer. Add a colon between each 2-character ID in
the MAC address.
Static IP Address If you selected Static IP for Configuration, enter the computer’s static IP address. Add a
period between each octet in the IP address.
Comments Optional comments about the computer.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Edit Computer menu.
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Manually Adding Wireless Clients
You can manually add a wireless client to the Gateway’s LAN using Wireless Protected
Setup (WPS). While not a security feature, WPS is a standard for easy and secure wireless
network set up and connections.
Note: WPS is optional for Wi-Fi Certified products. Check for the Wi-Fi Protected Setup logo
or terms on products to see whether the product is WPS compatible.
A few of the key advantages associated with WPS are:
WPS automatically configures the network name (SSID) and WPA security key for the
Gateway or access point and for wireless devices that join the network.
You do not have to know the network name and security keys or passphrases to use
WPS to join a wireless network.
Security keys or passphrase because are generated randomly generated, making them
nearly impossible to guess.
WPS uses the Extensible Authentication Protocol (EAP), a strong authentication protocol
used in WPA2.
To manually add a wireless client to the Gateway’s LAN, perform the following procedure
from the Computers menu.
1. Under Offline Computers, click the ADD WIFI PROTECTED SETUP (WPS) CLIENT
button. The Add Wireless Client menu appears (see Figure 82).
2. Complete the fields in the Add Wireless Client menu (see Table 40).
3. Click PAIR to pair the wireless device with the Gateway’s LAN (pairing can take up to 2
minutes). Alternatively, if your wireless device has a Pair button, you can press this button
to pair the device with the Gateway’s LAN.
4. If you click PAIR, the Private Wireless Advanced Setting options in the WiFi menu appear.
For information about completing these settings see page 50.
5. To add more wireless devices, repeat steps 1 through 4.
6. To edit an online wireless device, click the EDIT button next to the computer you want to
modify, edit the settings on the Edit Computer menu (see Figure 82 and Table 40), and
click SAVE.<<I did not see this button??>>
7. To delete an online or offline wireless device, click the X next to the device. When the
Delete Computer message appears, click OK to delete the device or CANCEL to retain it.
If you clicked OK, the device is removed from the Computers menu. <<true??>>
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Figure 82. Example of the Add Wireless Client Menu
Table 40. Edit Wireless Client Menu
Option Description
WiFi Protected Setup (WPS) Enables or disables the Gateway’s WPS setup.
• Enabled = Gateway’s WPS setup is activated. (default)
• Disabled = Gateway’s WPS setup is not activated.
Security Read-only screen that shows the security, if any, used on the Gateway’s wireless LAN. To
change the security used, see the Encryption Method option in the Home Network Wizard –
Step 2 menu (see “Configuring Your Home Network” on page 131).
Encryption Read-only screen that shows the encryption method, if any, used on the Gateway’s wireless
LAN. To change the encryption method used, see the Encryption Method option in the
Home Network Wizard – Step 2 menu (see “Configuring Your Home Network” on page 131).
Network Password Read-only screen that shows the network password you entered in the Enter Network
Password option in the Home Network Wizard – Step 2 menu (see “Configuring Your Home
Network” on page 131).
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Option Description
Connection Options 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. The PIN can
be viewed in the AP PIN option in the WiFi Client Setup Configuration (WP5) section of the
Wireless Menu (see page 120).
• PBC = Push Button Configuration. Lets you use the WPS button on the front panel of the
Gateway to configure WPS.
PAIR button Click this button to pair the wireless device settings with the Gateway’s LAN (can take up to 2
minutes). If your wireless device has a Pair button, you can press this button instead to pair
the device with the Gateway’s LAN.
CANCEL button Click this button to discard your settings on the Add Wireless Client menu.
<<need this screen??>>
Figure 83. Example of the Edit Device Menu
Table 41. Edit Device Menu<<true??>>
Option Description
Host Name Read-only field that shows the host name of the computer you selected.
Connection Read-only field that displays shows the network connection of Ethernet.
Configuration Select whether the selected computer should be discovered by the Gateway using DHCP or a
static IP address. If you select Static IP, enter the static IP address in the Static IP Address
field.
MAC Address Edit the MAC address of the selected computer. Add a colon between each 2-character ID in
the MAC address.
Static IP Address If you selected Static IP for Configuration, enter the computer’s static IP address. Add a
period between each octet in the IP address.
Comments Optional comments about the computer.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Edit Computer menu.
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Configuring Parental Controls
Regulating Web browsing can prevent children and workers from accessing dangerous
content on the Internet, or having to make judgment calls over suitable relationships in chat-
rooms. The fact is, Web sites, chat-room users, and downloaded programs may not have
the best interests of you, your family, or your workers at heart. The unscrupulous may try to
manipulate the people you care about or try to gain trust, which may result in unacceptable
access to your family, your coworkers, your computer, or personal information.
Using the Parental Controls menu, you can prevent access to unwanted Web content by:
Blocking sites and keywords. See page 142.
Blocking services. See page 148.
Blocking devices and access types. See page 152.
You can also define report filters and generate reports. See page 156.
Blocking Sites and Keywords, and Selecting Trusted Computers
Using the Managed Sites menu, you can restrict access to Web sites for non-trusted
computers on the network. This procedure involves the following steps:
1. Specify the sites to be blocked. See “Specifying Sites to be Blocked” on page 143.
2. Specify the keywords to be blocked. See “Specifying Keywords to be Blocked” on page
145.
3. Identify the trusted computers that are allowed to access the blocked Web sites and
keywords. See “Defining Trusted Computers” on page 147.
To display the Managed Sites menu, click Parental Control in the menu bar. Figure 84
shows an example of the Managed Sites menu.
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Figure 84. Example of Managed Sites Menu
Specifying Sites to be Blocked
To block sites for non-trusted computers, perform the following procedure from the Managed
Sites menu.
1. Next to Enable Managed Sites, click Enabled.
2. Under Blocked Sites, click ADD. The Add Blocked Domain menu appears (see Figure
85).
3. Complete the fields in the Add Blocked Domain menu (see Table 42).
4. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
site appears below Blocked Sites on the Managed Sites menu.
5. To block additional sites, repeat steps 2 through 4.
6. To edit a blocked site, click the EDIT button next to the blocked site you want to modify,
edit the settings on the Add Blocked Domain menu (see Table 42), and click SAVE.
7. To delete a blocked site, click the X next to the site. When the Delete URL Block Rule
message appears, click OK to delete the blocked URL or CANCEL to retain it. If you
clicked OK, the URL is removed from Blocked Sites on the Managed Sites menu.
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Figure 85. Add Blocked Domain Menu
Table 42. Add Blocked Domain Menu
Option Description
URL Enter the URL you want blocked.
Always Block? Select whether you want the Gateway to always block this URL. Choices are
• No = the Gateway does not always block this URL. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this URL.
• Yes = the Gateway always blocks this URL until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this URL.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this URL.
Set Blocked Days
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Option Description
Set Blocked Days If you selected No for Always Block?, use any of the following methods to specify when the
Gateway is to block this URL:
• Select All = blocks the URL for seven days.
• Select None = deselect blocking of the URL for seven days.
• Monday – Sunday = check the check boxes that correspond to the days when you want the
Gateway to block this URL.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Domain menu.
Specifying Keywords to be Blocked
To block keywords for non-trusted computers, perform the following procedure from the
Managed Sites menu.
1. Next to Enable Managed Sites, click Enabled.
2. Under Blocked Keywords, click ADD. The Add Blocked Keyword menu appears (see
Figure 86).
3. Complete the fields in the Add Blocked Keyword menu (see Table 43).
4. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
keyword appears below Blocked Keywords on the Managed Keywords menu.
5. To block additional keywords, repeat steps 2 through 4.
6. To edit a blocked keyword, click the EDIT button next to the blocked keyword you want to
modify, edit the settings on the Add Blocked Keyword menu (see Table 43), and click
SAVE.
7. To delete a blocked keyword, click the X next to the keyword. When the Delete Keyword
Block Rule message appears, click OK to delete the blocked keyword or CANCEL to retain
it. If you clicked OK, the keyword is removed from Blocked Keywords on the Managed
Keywords menu.
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Figure 86. Add Blocked Keyword Menu
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Table 43. Add Blocked Keyword Menu
Option Description
Keyword Enter the keyword you want blocked.
Always Block? Select whether you want the Gateway to always block this keyword. Choices are
• No = the Gateway does not always block this keyword. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this Keyword.
• Yes = the Gateway always blocks this keyword until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this keyword.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this keyword.
Set Blocked Days
Set Blocked Days If you selected No for Always Block?, use any of the following methods to specify when the
Gateway is to block this keyword:
• Select All = blocks the keyword for seven days.
• Select None = deselect blocking of the keyword for seven days.
• Monday – Sunday = check the check boxes that correspond to the days when you want the
Gateway to block this keyword.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Keyword menu.
Defining Trusted Computers
Trusted computers let you exempt connected computers from the blocked site and blocked
keyword rules you defined in the previous sections. To build a list of trusted computers,
perform the following procedure from the Managed Sites menu.
<<need to verify??>>
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Blocking Services and Selecting Trusted Computers
Using the Managed Services menu, you can restrict access to certain services and
applications for non-trusted computers on the network.
This procedure involves the following steps:
1. Specify the services to be blocked. See “Specifying Services” on page 149.
2. Identify the trusted computers that are allowed to access the blocked services. See
“Defining Trusted Computers” on page 151.
To display the Managed Services menu, click Parental Control > Managed Services in the
menu bar. Figure 87 shows an example of the menu.
Figure 87. Example of Managed Services Menu
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Specifying Services to be Blocked
To block services for non-trusted computers, perform the following procedure from the
Managed Services menu.
1. Next to Enable Managed Services, click Enabled.
2. Under Blocked Services, click ADD. The Add Blocked Service menu appears (see Figure
88).
3. Complete the fields in the Add Blocked Service menu (see Table 44).
4. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
service appears below Blocked Services on the Managed Services menu.
5. To block additional services, repeat steps 2 through 4.
6. To edit a blocked service, click the EDIT button next to the blocked service you want to
modify, edit the settings on the Add Blocked Service menu (see Table 44), and click SAVE.
7. To delete a blocked service, click the X next to the service. When the Delete Service Block
Rule message appears, click OK to delete the blocked URL or CANCEL to retain it. If you
clicked OK, the service is removed from Blocked Services on the Managed Services
menu.
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Figure 88. Add Blocked Service Menu
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Table 44. Add Blocked Service Menu
Option Description
User Defined Service Enter the service you want blocked.
Protocol The type of protocol associated with the service to be blocked. Choices are:
• TCP
• UDP
• TCP/UDP (default)
Start Port Starting port number on which the block will be applied. If necessary, contact the application
vendor for this information.
End Port Ending port number on which the block will be applied. If necessary, contact the application
vendor for this information.
Always Block? Select whether you want the Gateway to always block this service. Choices are
• No = the Gateway does not always block this service. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this service.
• Yes = the Gateway always blocks this service until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this service.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this service.
Set Blocked Days
Set Blocked Days If you selected No for Always Block?, use one of the following methods to specify when the
Gateway is to block this service:
• Select All = blocks the service for seven days.
• Select None = deselect blocking of the service for seven days.
• Monday – Sunday = check the check boxes that correspond to the days when you want the
Gateway to block this service.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Domain menu.
Defining Trusted Computers
Trusted computers let you exempt connected computers from the blocked services rules you
defined in the previous section. To build a list of trusted computers, perform the following
procedure from the Managed Sites menu.
<<need to verify??>>
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Managing Devices and Access Types
Using the Managed Devices menu, you can enable or disable managed devices and allow
or block all access types. You can also add devices you want to block.
To display the Managed Devices menu, click Parental Control > Managed Devices in the
menu bar. Figure 89 shows an example of the menu.
Figure 89. Example of Managed Devices Menu
Enabling or Disabling Managed Devices
By default, all managed devices are disabled. To enable them, display the Managed Devices
menu and click Enabled next to Enable Managed Devices.
Enabling or Disabling Access Types
By default, all access types are allowed. To block them, display the Managed Devices menu
and click Block All next to Access Type.
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Adding Blocked Devices
To add devices you want to block, perform the following procedure from the Managed
Devices menu.
1. Next to Blocked Devices, click ADD BLOCKED DEVICE. The Add Blocked Device menu
appears (see Figure 90).
2. Completed the fields in the Add Block Device menu (see Table 45).
3. Click SAVE (or click CANCEL to discard your settings). If you clicked SAVE, the blocked
device appears below Blocked Devices on the Managed Devices menu.
4. To block additional devices, repeat steps 1 through 3.
5. To edit a blocked device, click the EDIT button next to the blocked device you want to
modify, edit the settings on the Add Blocked Device menu (see Table 45), and click SAVE.
6. To delete a blocked device, click the X next to the service. When the Delete Blocked MAC
Rule message appears, click OK to delete the blocked device or CANCEL to retain it. If
you clicked OK, the device is removed from Blocked Devices on the Managed Devices
menu.
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Figure 90. Add Blocked Device Menu
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Table 45. Add Blocked Device Menu
Option Description
Auto-Learned Devices To select a device that the Gateway automatically learned, select the device under Auto-
Learned Devices.
Custom Device To select a custom device, enter the name and MAC address of the device in the Computer
Name and MAC Address fields below Custom Device.
Always Block? Select whether you want the Gateway to always block this device. Choices are
• No = the Gateway does not always block this device. Use the Set Block Time and Set
Blocked Days to instruct the Gateway when to block this device.
• Yes = the Gateway always blocks this device until you remove the block. (default)
Set Block Time
Start from If you selected No for Always Block?, select the time when the Gateway is to start blocking
this device.
End on If you selected No for Always Block?, select the time when the Gateway is to stop blocking
this device.
Set Blocked Days
Set Blocked Days If you selected No for Always Block?, use one of the following methods to specify when the
Gateway is to block this device:
• Select All = blocks the device for seven days.
• Select None = deselect blocking of the device for seven days.
• Monday – Sunday = check the check boxes that correspond to the days when you want the
Gateway to block this device.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Blocked Device menu.
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Generating Reports
Using the Reports menu, you can define filters for managed sites, services, and devices,
and then show, print or download the reports. To display the Reports menu, click Parental
Control > Reports in the menu bar. Figure 91 shows an example of the menu.
Figure 91. Example of Reports Menu
Under Reports Filters, you can set a report filter for the type of reports you want to
generate and the time frame they are to cover. If you do not set a report filter, the default
filter is automatically set to all report types for the current day (today). After you define the
filter, you can show, print, or download the report.
1. Using the Report Type drop-down list, select the report to which you want to apply a filter,
Choices are:
All
Managed Sites
Managed Services
Managed Devices
2. Using the Time Frame drop-down list, select a time frame that the report is to cover.
3. To show the report, click the GENERATE REPORT button.
4. To print the report with the filter applied, click PRINT.
5. To download the report with the filter applied, click DOWNLOAD
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Using Advanced Features
Using the Advanced Features menu, you can:
Enable or disable port forwarding. See page 157.
Enable or disable port triggering. See page 160.
Enable or disable remote management. See page 163.
Configuring DMZ settings. See page 165.
Configure routing. See page 167.
Configure Dynamic DNS. See page 169.
Use the Gateway’s UPnP feature to discover UPnP-enabled devices. See page 171.
Enabling or Disabling Port Forwarding
Using the Firewall menu (described on page 53), you can configure the Gateway to create a
firewall between your internal network and the Internet. A firewall keeps unwanted traffic
from the Internet away from your networked computers. There may be times, however, when
you want a “tunnel” to be created through the Gateway firewall, so computers on the Internet
can communicate to one of the computers on your LAN using a single port. This is handy for
running Web servers, game servers, FTP servers, or even video conferencing.
Port forwarding allows outside users access to the computers on your LAN using a given
port or range of ports. Using port forwarding, for example, one of your computers can run a
Web server (port 80) while another computer runs an FTP server (port 23) - both using the
same IP address.
You configure the Gateway’s port forwarding feature using the Port Forwarding menu. To
display this menu, click Advanced in the menu bar. Figure 92 shows an example of the
menu.
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Figure 92. Example of Port Forwarding Menu
Adding a Port Forwarding Rule
To add a port forwarding rule, perform the following procedure from the Port Forwarding
menu.
1. Next to Enable Port Forwarding, click Enabled.
2. Click the ADD PORT FORWARD button. The Add Service menu appears (see Figure 93).
3. Complete the fields in the Add Service menu (see Table 46).
4. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the port forwarding rule appears below Port Forwarding on the Port Forwarding menu.
5. To add more port forwarding rules, repeat steps 2 through 4.
6. To edit a port forwarding rule, click the EDIT button next to the rule you want to modify, edit
the settings on the Add Service menu (see Table 46), and click SAVE.
7. To delete a port forwarding rule, click the X next to the rule. When the Delete Port
Forwarding Rule message appears, click OK to delete the port forwarding rule or CANCEL
to retain it. If you clicked OK, the rule is removed from the Port Forwarding area on the
Port Forwarding menu.
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Figure 93. Add Service Menu
Table 46. Add Service Menu
Option Description
Service Name Name for identifying the service. The name is for reference purposes only.
Service Type The protocol you want to use with the service. Choices are:
• TCP
• UDP
• TCP/UDP (default)
Service IP Address IP address of the LAN computer or server that is running the service.
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 Port(s) 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 computer server listens for traffic/data
on this port (or these ports).
Enable Port Range Check this box to enable the private port range specified in Private Port(s).
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Add Service menu.
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Disabling Port Forwarding
You can disable individual or all port-forwarding rules from the Port Forwarding menu.
To disable an individual port-forwarding rule, uncheck the rule in the Active column.
Although disabled, you can still use the buttons to the right of the checkbox to edit or
delete the rule. To enable the rule, check the checkbox in the Active column.
To disable all port-forwarding rules, click Disabled next to Enable Port Forwarding.
The ADD PORT FORWARD button becomes unavailable and all port forwarding rules
turn gray to show they are disabled. In addition, the buttons to the right of the
checkboxes become gray, preventing you from editing or deleting port-forwarding rules.
To enable all port-forwarding rules, click Enabled next to Enable Port Forwarding.
Enabling or Disabling Port Triggering
Using the Port Triggering menu, you can configure the Gateway to detect port triggers for
multiple-session applications and allow them to pass through 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 Port Triggering menu, click Advanced > Port Triggering in the menu bar.
Figure 94 shows an example of the menu.
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Figure 94. Example of Port Triggering Menu
Adding a Port Triggering Rule
To add a port triggering rule, perform the following procedure from the Port Triggering menu.
1. Next to Enable Port Triggering, click Enabled.
2. Click the ADD PORT FORWARD button. The Port Triggering Add menu appears (see
Figure 95).
3. Complete the fields in the Port Triggering Add menu (see Table 47).
4. Click SAVE to save your settings (or click CANCEL to discard them). If you click SAVE,
the port triggering rule appears below Port Triggering on the Port Triggering menu.
5. To add more port triggering rules, repeat steps 2 through 4.
6. To edit a port triggering rule, click the EDIT button next to the rule you want to modify, edit
the settings on the Port Triggering Add menu (see Table 47), and click SAVE.
7. To delete a port triggering rule, click the X next to the rule. When the Delete Port Triggering
Rule message appears, click OK to delete the port triggering rule or CANCEL to retain it. If
you clicked OK, the rule is removed from the Port Triggering area on the Port Triggering
menu.
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Figure 95. Port Triggering Add Menu
Table 47. Port Triggering Add Menu
Option Description
Service Name Name for identifying the trigger. The name is for reference purposes only.
Service Type The type of protocol you want to use with the trigger. Choices are:
• TCP
• UDP
• TCP/UDP (default)
For example, to track the H.323 protocol, the protocol type should be TCP.
Trigger Port From From port ranges of the special application. For example, to track H.323 protocol, the From
port should be 1720.
Trigger Port To To port ranges of the special application. For example, to track H.323 protocol, the To port
should be 1720.
Target Port From Starting port range for the target port listening for the special application.
Target Port To Ending port range for the target port listening for the special application.
Interval Specify the interval between 50 and 30000 between two continuous sessions. If the interval
exceeds this time interval setting, the sessions are considered to be unrelated.
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Port Triggering Add menu.
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Disabling Port Triggering
You can disable individual or all port-triggering rules from the Port Triggering menu.
To disable an individual port-triggering rule, uncheck the rule in the Active column.
Although disabled, you can still use the buttons to the right of the checkbox to edit or
delete the rule. To enable the rule, check the checkbox in the Active column.
To disable all port-triggering rules, click Disabled next to Enable Port Triggering. The
ADD PORT TRIGGER button becomes unavailable and all port triggering rules turn gray
to show they are disabled. In addition, the buttons to the right of the checkboxes become
gray, preventing you from editing or deleting port-triggering rules. To enable all port-
triggering rules, click Enabled next to Enable Port Triggering.
Remote Management
The Gateway supports centralized administration and management via the following
methods:
HTTP
HTTPS
Telnet
SSH
SNMP
HNAP
Using the Remote Management menu, you can independently enable or disable these
remote management methods. The Remote Management menu also lets you provide
remote access to a single computer, a group of computers that fall within a particular range
of IP addresses, or any computer.
To display the Remote Management menu, click Advanced > Remote Management in the
menu bar. Figure 96 shows an example of this menu and Table 48 describes the settings.
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Figure 96. Example of Remote Management Menu
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Table 48. Remote Management Menu
Option Description
Remote Management
Remote Management You can remotely manage the Gateway using HTTP, HTTPS, Telnet, SSH, SNMP, and
HNAP. Each method has Enabled and Disabled buttons for enabling or disabling that remote
management method. If you enable a remote management method, specify the port number
to be used with that method in the field to the left of Enabled.
Note: The Gateway’s remote management address appears below HNAP.
Remote Access Allowed From
Remote Access Allowed From Lets you provide remote access to Gateway for one computer, all computers on the Internet,
or computers that fall within a specified range of IP addresses. Choices are:
• Single Computer = to allow a single computer to remotely manage the Gateway, check this
option and enter the IP address of the computer next to IP Address.
• Range of IPs = to allow a group of computers to remotely manage the Gateway, check this
option. Then enter the starting range of IP addresses next to Start IP Address boxes and
the ending range of IP addresses next to End IP Address.
• Any Computer = allows any computer on the Internet to access your network. This setting
can cause a security risk.
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 DMZ host.
A DMZ allows a single computer on your LAN to expose all of its ports to the Internet. When
doing this, the exposed computer is no longer “behind” the firewall. Therefore, placing a
computer in the DMZ should be considered temporary because your firewall is no longer
able to provide any security to it..
You configure the Gateway’s DMZ settings using the DMZ menu. To display this menu, click
Advanced > DMZ in the menu bar. Figure 97 shows an example of this menu and Table 49
describes the settings.
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Figure 97. Example of DMZ Menu
Table 49. DMZ Menu
Option Description
Enable DMZ Enables or disables the Gateway’s DMZ setting.
• Enabled = Gateway’s DMZ feature is enabled.
• Disabled = Gateway’s DMZ feature is disabled.
DMZ Host IP addresses of the computer to be used as the DMZ server.
SAVE button Click this button to save your settings.
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Configuring Routing Settings
Using the Routing menu, you can configure how the Gateway adjusts to physical changes in
the network’s layout and exchanges routing tables with other routers. To access the Routing
menu, click Advanced > Routing in the menu bar. Figure 98 shows an example of the
menu and Table 50 describes the settings.
Figure 98. Example of Routing Menu
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Table 50. Routing Menu
Option Description
Interface Name Select the Gateway interface on which routing will be performed.
RIP Send Version Select the format and the broadcasting method of the RIP packets that the Gateway sends. Choices
are:
• Do Not Send (default)
• RIP1
• RIP2
• RIP1/2
Your selection should match the version supported by other routers on your network.
RIP Receive Version Select the format and the broadcasting method of the RIP packets that the Gateway receives.
Choices are:
• Do Not Receive (default)
• RIP1
• RIP2
• RIP1/2
Your selection should match the version supported by other routers on your network.
Update Interval How often, in seconds, the Gateway sends routing-update messages. Default is 30 seconds.
Default Metric Number by which the metric value for the path increases when the Gateway receives a routing
update that includes changes to an entry. Choices are 1 – 15. Default is 1.
Authentication Type The authentication mechanism used, if any. Choices are:
• No Authentication = no authentication is used. If you keep this default setting, the Authentication
Key & ID fields are gray and unavailable. (default)
• Simple Password = an authentication method where a clear text password is sent to participating
neighbors on the network. This selection sends the authenticating password over the network,
possible making it available to individuals who can access packets off the network. Do not use this
option as part of your security strategy, Rather, use it to avoid accidental changes to the routing
infrastructure. If you select this setting, the first field in the Authentication Key & ID option becomes
available for entering the password.
• MD5 = an authentication method that works much like Simple Password authentication, except
that MD5 does not send the key over the network. Instead, a router uses the MD5 algorithm to
produce a message digest of the key (also called a hash). The router sends the message digest
instead of the key itself, which ensures that no one can eavesdrop on the network and learn keys
during transmission. If you select this setting, the first field in the Authentication Key & ID option
becomes available for entering the key and the second field becomes available for entering the ID.
Authentication Key & ID Specify the appropriate information based on the Authentication Type selected:
• No Authentication – no entry required; fields are gray and unavailable. (default)
• Simple Password = in the first field, enter the clear-text password to be used for authentication.
The second field requires no entry, and is gray and unavailable.
• MD5 = in the first field, enter the MD5-hash password. In the second field, enter the Key Identifier
that identifies the key used to create the authentication data for this message.
Neighbor Enter the IP address of the Gateway’s RIP neighbor router.
SAVE button Click this button to save your settings.
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Configuring Dynamic DNS Settings
The Gateway provides a dynamic DNS feature that can notify a domain name server to
change, in real time, the active DNS configuration of its configured hostnames, addresses,
or other information stored in DNS.
If you have already set up a dynamic domain service with a service provider, use the
following procedure to set up the Gateway to update your DDNS automatically whenever
your Internet connection's IP address changes.
1. Click Advanced > Dynamic DNS. The Dynamic DNS menu appears (see Figure 99).
2. Complete the fields in the Dynamic DNS menu (see Table 51).
3. Click SAVE to save your settings (or click CANCEL to discard them)
Figure 99. Example of Dynamic DNS Menu
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Table 51. Dynamic DNS Menu
Option Description
Enable Dynamic DNS Enables or disables the Gateway’s Dynamic DNS setting.
• Enabled = Gateway’s Dynamic DNS feature is enabled.
• Disabled = Gateway’s Dynamic DNS feature is disabled.
Server Provider Select a service provider.
User Name Enter your service provider user name that you set up.
Password Enter your service provider password that you set up. The password must be at least 6
characters long. For security, each password character appears as a dot (●).
Host Name Enter the complete Host Name that you setup with service provider. To specify more than one
host name, click the +ADD button and enter the next host name in the box that appears. To
remove a host name, click Remove next to the host name you want to remove.
SAVE button Click this button to save your settings.
CANCEL SETTINGS button Click this button to discard your settings on the Dynamic DNS menu.
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Discovering Devices
Using the Device Discovery menu, the Gateway can obtain protocol addresses of
neighboring devices and discover the platform of those devices.
To display the Device Discovery menu, click Advanced > Device Discovery in the menu
bar. Figure 100 shows an example of the menu and Table 52 describes it.
Figure 100. Example of Device Discovery Menu
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Table 52. Device Discovery Menu
Option Description
Enable UPnP Determines whether the Gateway uses its UPnP feature to communicate with other devices or
your operating system.
• Enabled = allows the Gateway to use its UPnP feature to communicate with other devices
or your operating system. (default)
• Disabled = prevents the Gateway from using its UPnP feature to communicate with other
devices or your operating system. Also, may be disabled if your operating system does not
support UPnP.
Advertisement Period How often the Gateway broadcasts its UPnP information (if UPnP is enabled). This value can
range from 1 to 1440 minutes. The default period is 30 minutes. Shorter durations ensure that
control points have current device status at the expense of additional network traffic. Longer
durations can compromise the freshness of the device status, but can significantly reduce
network traffic.
Time To Live A counting mechanism to determine how long a packet is valid before it reaches its
destination. Each time a TCP/IP packet passes through a router, it decrements its Time To
Live count. When the count reaches zero, the packet is dropped by the router. This ensures
that errant routing and looping aimless packets will not flood the network. The number of hops
can range from 1 to 255. The default value is 5 hops, which should be fine for most networks.
If you notice that some devices are not being updated or reached correctly, you might want to
increase this value slightly.
Enable Zero Config Determines whether zero configuration is enabled or disabled. Zero configuration networking
automatically creates a usable Internet Protocol (IP) network, without manual operator
intervention or special configuration servers. It allows nonexpert users to connect computers,
networked printers, and other network devices and expect a functioning network to be
established automatically.
• Enabled = enables support for zero configuration.
• Disabled = disables support for zero-configuration (default)
SAVE button Click this button to save your settings.
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Troubleshooting the Gateway
Using the Troubleshooting menu, you can:
Define log filters and generate logs. See page 174.
Test connectivity to a destination or IP address. See page 175.
Reset the Gateway, reset your Wi-Fi router, or restore the Gateway’s WiFi and factory
default settings. See page 177.
Change the password used to log in to the Gateway’s Web interface. See page 178.
Note: For additional troubleshooting procedures, see Chapter 6.
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Generating Logs
Using the Logs menu, you can define filters for system, event, and firewall logs, and then
show, print or download the logs. To display the Logs menu, click Troubleshooting > Logs
in the menu bar. Figure 101 shows an example of the menu.
Figure 101. Example of Logs Menu
Under Logs Filters, you can set a log filter for the type of logs you want to generate and the
time frame they are to cover. If you do not set a log filter, the default filter is automatically set
to system log types for the current day (today). After you define the filter, you can show,
print, or download the log.
4. Using the Log Type drop-down list, select the log to which you want to apply a filter,
Choices are:
System Logs
Event Logs
Firewall Logs
5. Using the Time Frame drop-down list, select a time frame that the log is to cover.
6. To show the log, click the SHOW LOGS button.
7. To print the log with the filter applied, click PRINT.
8. To download the log with the filter applied, click DOWNLOAD.
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Testing Connectivity to Destination and IP Addresses
There may be times when you encounter a problem trying to reach a certain destination. If
you examine the Gateway’s configuration and operation and everything looks fine, the
problem might be with a router up the line from the Gateway or with the line itself.
To help you identify such issues, the Network Diagnostic Tools menu lets you test
connectivity to a destination or IP address. To display the Network Diagnostic Tools menu,
click Troubleshooting > Diagnostic Tools in the menu bar. Figure 102 shows an example
of the menu.
Figure 102. Example of the Network Diagnostic Tools Menu
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Testing Connectivity to a Destination Address
To test the Gateway’s connectivity to a destination address, perform the following procedure
from the Network Diagnostic Tools menu.
1. Under Test Connectivity Results, enter a destination address in the Destination
Address field.
Note: This procedure assumes that the destination address you enter is valid and
operational.
2. Click the TEST CONNECTIVITY button. The Packets Sent and Packets Received
counters show whether packets the number of packets sent and received during the test.
3. To stop the test, click the STOP button.
If the test is successful, you know that the destination you are having difficulty reaching is
alive and physically reachable. If there are routers between the Gateway and the destination
you are having difficulty reaching, the problem might be at one of the routers.
Testing Connectivity to an IP Address
To test the Gateway’s connectivity to an IP address, perform the following procedure from
the Network Diagnostic Tools menu.
1. Under Check for IP Address Results, enter an IP address in the IP Address field.
Note: This procedure assumes that the IP address you enter is valid and operational.
2. Click the CHECK FOR IP ADDRESSES button. The Connectivity indicator shows the
results of the test.
3. To stop the test, click the STOP button.
If the test is successful, you know that the IP address you are having difficulty reaching is
alive and physically reachable. If there are routers between the Gateway and the IP address
you are having difficulty reaching, the problem might be at one of the routers.
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Restoring or Rebooting the Gateway
The Restore / Reboot Gateway menu provides buttons for performing the following activities:
RESET - restarts the Gateway while keeping any overrides you made to the Gateway’s
factory default settings.
RESET WI-FI Router - resets the Wi-Fi router without affecting the Gateway.
RESTORE WI-FI SETTINGS – returns the Gateway to its factory default WiFI settings.
Settings that are not related to the Gateway’s wireless operation are not changed.
RESTORE FACTORY SETTINGS - returns the Gateway to its factory default settings.
Any overrides you made to the default settings will be removed. This button in
functionally equivalent to using the reset button to reset the Gateway (see “Using the
Reset Button” on page 17).
To display the Network Diagnostic Tools menu, click Troubleshooting > Restore/Reboot
Gateway in the menu bar. Figure 103 shows an example of the menu.
Figure 103. Example of the Restore / Reboot Gateway Menu
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Changing the Login Password
The Change Password menu lets you change the password used to log in to the Gateway’s
Web interface. For security, we recommend you change the default log in password the first
time you log in to the Web management interface to protect the Gateway from being
tampered with.
To display the Change Password, click Troubleshooting > Change Password in the menu
bar, or click the Change Password link at the top-right area of the Web management
interface. Figure 104 shows an example of the menu and Table 53 describes the menu.
Figure 104. Example of the Change Password Menu
Table 53. Change Password Menu
Option Description
Current Password Enter the current case-sensitive administrator password. For security purposes, every typed
character appears as a dot (). The default password is not shown for security purposes.
New Password Enter the new case-sensitive administrator password you want to use. A password can
contain alphanumeric characters and spaces. For security purposes, every typed character
appears as a dot ().
Re-enter New Password Enter the same case-sensitive administrator password you typed in the New Password field.
For security purposes, every typed character appears as a dot ().
SAVE button Click this button to save your settings.
CANCEL button Click this button to discard your settings on the Change Password menu.
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6 Troubleshooting Procedures
Successful troubleshooting requires a logical, consistent approach that narrows down the
source of a problem by ascertaining what is and isn't working until a single cause is
identified. This chapter provides suggestions for identifying and resolving problems in the
unlikely event you encounter a problem using the Gateway. It also provides tips for tuning
your configuration to optimize your wired and wireless networking experience.
The topics covered in this chapter are:
Topic Subtopics
Basic Troubleshooting Procedures See page 180
Advanced Troubleshooting Procedures • Troubleshooting Physical Network Problems (page 182)
• Troubleshooting Configuration Problems (page 183)
• Determining Your IP Address (page 183)
• Troubleshooting Software-Interaction Problems (page 187)
Specific Troubleshooting Procedures • Unable to Log In to Gateway (page 188)
• Local Networked Devices Unable to Access the Gateway (page 188)
• Unable to Access the Internet (page 189)
• Unable to Access Networked Devices (page 191)
• Using the Ping Utility to Troubleshoot (page 191)
• Gateway Disconnects from the Internet (page 194)
• Slow Web Browsing (page 195)
• Unable to Configure Port Forwarding (page 195)
• Unable to Use Pass-thru VPN (page 195)
• Gateway is Not Passing DHCP Address to a computer (page 195)
• Determining a Computer’s MAC Address (page 196)
Wireless Troubleshooting See page 198
Application and Gaming Troubleshooting See page 204
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Basic Troubleshooting Procedures
The following procedures cover basic troubleshooting procedures. Carefully review the
sections to make sure you follow the recommended procedures.
Always start your network using the following sequence
1. Unplug the Gateway and any other routers or switches.
2. Shut down connected computers.
3. Plug in the Gateway first and wait for the lights to cycle through the startup routine. This
prevents another device from taking the DHCP lease.
4. Plug in any other routers and switches.
5. Lastly, start up your computer.
Check basic Gateway functions
After you turn on power to the Gateway, check that the following LED sequences have
occurred (and see “Front Panel” on page 13):
1. When power is first applied, verify that the Power LED is ON.
2. After about a minute, verify the statuses of the following LEDs on the front panel of the
Gateway (see Figure 1 on page 13):
Online = ON (Gateway is operational)
DS = ON (Gateway is connected to the Internet)
US = ON (Gateway is connected to the Internet)
WiFi = ON (Gateway is ready for wireless operation)
If this behavior does not occur, see Table 54. If the incorrect behavior persists, use the
Reset button to return the Gateway to its factory default configuration settings (see “Using
the Reset Button” on page 17).
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Table 54. Checking Basic Gateway Functions
If… Perform This Procedure
The Power and other LEDs are OFF. 1. Turn off the Gateway and then turn it on again to see whether the problem is
resolved.
2. Check that you are using the power adapter supplied with the Gateway.
3. Be sure the power cord is connected to the Gateway and to a functioning power
outlet.
4. Plug a working device, such as a lamp, into the power outlet to confirm that the
outlet is working.
5. Be sure the power outlet is not controlled by a wall switch that can inadvertently
remove power from the outlet
The DS and US LEDs are OFF. 1. Be sure the Ethernet cable connections are secure at the Gateway and at the
computer.
2. Be sure that power is turned on to the computer connected to the Gateway.
3. Be sure you are using the Ethernet cable supplied with the Gateway or one
configured similarly to it.
The WiFI LED is OFF. See “Checking the Gateway’s Wireless Connection” on page 198.
Check the Gateway’s telephone interfaces
To confirm that the Gateway’s two telephone interfaces are working properly:
1. Lift the handset of the device connected to the Gateway’s telephone 1 interface, Confirm
that the Tel1 LED goes ON. Hang up the device (place the device onhook) and confirm that
the Tel1 LED goes OFF.
2. Lift the handset of the device connected to the Gateway’s telephone 2 interface, Confirm
that the Tel2 LED goes ON. Hang up the device (place the device onhook) and confirm that
the Tel2 LED goes OFF.
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Advanced Troubleshooting Procedures
Most advanced troubleshooting procedures fall into one of the following categories:
Physical - an underlying problem with cables, a bad Gateway, or similar hardware
problem. See page 182.
Configuration - a problem with the configuration of one or more of network components.
See page 183.
Software - a failure of one or more software applications, an undesired interaction
between two or more applications, or an undesired application that has been introduced
into the network. See page 187.
Troubleshooting Physical Network Problems
When you experience network troubles, start by checking the physical network devices and
connections. These problems are the most easily fixed and include:
Performing a thorough physical inspection of your network.
Checking that all hardware devices, including the Gateway, are plugged in and
physically connected to the network.
Making sure you are using the proper network cables (for example, not using a
crossover cable with a NIC that requires a straight-through cable).
Making sure all network cables are in good condition and well seated. Often, reseating
the cable into a connector is all that is required to ensure a firm connection.
In addition, some operating systems, such as Microsoft Windows XP, show errors, such as
when a network cable is unplugged. Figure 2, for instance, shows examples of how
Microsoft Windows XP shows connection statuses in the Network Connections window. For
information about other operating systems, refer to the documentation for those operating
systems.
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Connected. Your computer is properly connected to the Gateway or wired/wireless network,
but there is a problem between the Gateway and the Internet.
Disabled. Someone has manually disabled the NIC. To fix the problem, right-click the
adapter and click Enable.
Unplugged. Your computer cannot detect the connection to the Gateway.
Not connected. Your computer cannot connect to your wireless network.
Limited or no connectivity. Your computer is properly connected to the Gateway, but either
the Gateway is misconfigured or there is a problem between the Gateway and the Internet.
Figure 105. Examples of Connectivity Statuses for Microsoft Windows XP
Troubleshooting Configuration Problems
After confirming that your hardware is working properly, examine your networking
configuration to determine whether there is a misconfiguration of IP addresses, subnet
masks, gateways, or broadcast addresses. Common configuration problems can be caused
by misconfiguring newly connected or configured devices.
Determining Your IP Address
An IP address uniquely identifies computers and computing devices, such as the Gateway,
on a TCP/IP network. IP addresses are normally expressed in dotted-decimal format, with
four numbers (or “octets”) separated by periods, such as 10.1.10.1.
For troubleshooting purposes, all the numbers in the IP addresses of your networked
devices must be consistent across the network. This means:
The first nine numbers (i.e., the first three octets) in the IP addresses are the same for all
the devices on the network.
The last three numbers (i.e., the last octet) in the IP addresses are different and not in
use by other devices on the network (assuming your subnet mask is
255.255.255.000).
For example, if the IP address for the Gateway is 10.1.10.1, the other devices on the
network must have an IP address whose:
First three octets are 10.1.10.
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Last octet is any unique number from 0 to 255 (there are restrictions on using 0 and 255,
so avoid using them). You would not use 1 as the last number, since that number is the
last octet in the Gateway IP address in our example.
Figure 106 shows an example of IP addresses assigned to devices on the network.
Figure 106. Example of IP Addresses for Networked Devices
You define the computer’s IP address using the procedure appropriate for your operating
system, as described in Chapter 3.
Tip: The following Windows sections describe how to use the command-line program
Windows IP Configuration (ipconfig) to see the IP address of a computer running a Windows
operating system. However, if you want even more information, such as IP routing and DHCP
information, type ipconfig /all instead of ipconfig in the Windows sections that follow.
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The most common problem associated when viewing IP addresses is that either:
A computer’s IP address is not on the same subnet as the other networked devices. In
other words, the first nine numbers (three octets) in the device’s IP address are not
identical to those of the other networked devices.
A computer shows an IP address that starts with the digits 169.254. When this
happens, it often means the computer could not retrieve a network address from a
DHCP server and therefore automatically assigned itself an address from the base
network address 169.254. This would be fine if all the computers on your network used
IP addresses from the 169.254 base network address. If one of them isn’t, however,
that computer will have problems connecting to the other network computers.
Possible causes for an IP address not being assigned are:
Defective cables Replace the cable if it is worn or defective.
An Ethernet cable may not be firmly connected at both ends. Secure the cable at both
ends. Often, just reseating the cable into a connector is all that is required.
The NIC may be bad or the network cable connected to it may be the wrong kind (for
example, it might be a straight-through cable when a crossover cable is required). If you
have another NIC and cable available, try using them instead.
The Gateway port may be bad. Plug the network cable into a different port on the
Gateway.
The DHCP server that would automatically assign IP addresses is not configured for
DHCP.
Wrong WEP or WPA settings are configured on the Gateway or access point for wireless
connections.
The sections that follow describe how to identify the IP addresses on devices running
Windows and Macintosh operating systems.
Microsoft Windows 2000
To find the IP address of a computer running Microsoft Windows 2000:
1. From the Windows task bar, click Start and select Run.
2. In the Open field, type cmd and click OK. A DOS command window appears.
3. In the DOS command window, type ipconfig and then press Enter. Your IP address will be
listed (see Figure 107).
4. When you finish, type exit at the command prompt and press Enter to close the window
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Figure 107. Example of an IP Address
Microsoft Windows XP, Vista, and 7
To find the IP address of a computer running Microsoft Windows XP, Vista, or 7:
1. Click on Start and in the Start Search box type cmd.
2. Press Enter on your keyboard or click cmd.exe in your search list (see Figure 108).
Figure 108. Example of md.exe in the Search List
3. In the DOS command window, type ipconfig and then press Enter. Your IP address will be
listed (see Figure 107).
4. When you finish, type exit at the command prompt and press Enter to close the window.
Sample IP Address
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Apple Macintosh OS X
To find the IP address of a Mac OS X OS X 10.6 or 10.5 computer:
1. From the Apple menu, select System Preferences...
2. In System Preferences, from the View menu, select Network.
3. In the Network preference window, click a network port (for example, Ethernet, AirPort,
modem). If you are connected, the IP address appears below Status.
4. Close the window when finished.
To find the IP address of a Mac OS X 10.4 or 10.3 computer:
1. From the Apple menu, select Location, and then Network Preferences...
2. In the Network Preference window, next to Show:, select Network Status. Your network
status and IP address appear.
3. Close the window when finished.
Via the Web
There are various Web sites, such as http://whatismyipaddress.com/, that display your IP
address and other information about your system. If the page does not display, you may not
have a working Internet connection and should try one of the methods described above to
find your IP address.
Troubleshooting Software-Interaction Problems
If the physical network and basic configuration procedures in the preceding sections do not
resolve your problem, focus on software problems. The most common software problems
are related to firewalls.
Many third-party antivirus programs include built-in firewalls. You may not realize that you
installed the firewall component when you installed the antivirus software, and now the
firewall may be interfering with your network connectivity.
To troubleshoot software problems:
1. Disconnect your network from the Internet so that you can safely disable any firewalls or
antivirus software while you troubleshoot.
2. Disconnect the Gateway from the Internet and unplug the Gateway.
3. After you are off the Internet, disable any antivirus or firewall programs you have, including
Internet Connection Firewall or Windows Firewall, on all the computers that have problems.
If this step solves the problem, the problem exists with one of these Windows features or
products. Enable one at a time and see when things break again. When they do, you know
where the problem is and you can either replace that product with one that does not cause
problems or change the program's configuration to resolve the problem.
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4. When you have everything working, reconnect your devices to the Internet.
5. Restart all your computers.
Specific Troubleshooting Procedures
The following sections cover specific troubleshooting suggestions you may find helpful if the
basic and advanced troubleshooting procedures in the previous sections did not resolve
your problem.
Unable to Log In to Gateway
If you are unable to log in to the Gateway’s Web management interface:
1. Confirm that the Ethernet cable connecting the computer and Gateway is connected
securely at both ends. Often, just reseating the cable into a connector is all that is required.
2. If you have more than one network port available on the Gateway, plug the cable into a
different port. If the network connection works, the original port on the Gateway is faulty.
However, you can continue to use the other ports.
3. The NIC in your computer might have failed. If possible, connect a different computer to
the same network cable. If the connection works, the problem is with the NIC. Contact the
NIC manufacturer for support or install a new NIC. If the new computer also fails to
connect, replace the Ethernet cable with a new cable, as you might have a faulty cable. If
the problem persists, contact technical support for the Gateway.
4. Be sure you are using the correct login information. The factory default login name is
cusadmin and the password is highspeed. Be sure Caps Lock is off when entering this
information.
5. Run the Home Network Wizard (see “Configuring Your Home Network” on page 60).
6. Change the login password (see “Changing the Login Password” on page 99).
Local Networked Devices Unable to Access the Gateway
If devices on the local network cannot access the Gateway:
1. Go to Connection > Status (see “Viewing the Gateway’s Connection Status” on page 44).
2. Under Local IP Network, check that the following statuses are shown:
– Local Network = Connected
– No of Clients connected = a number greater than zero
If your statuses show no local network connection and/or no clients connected, proceed to
the next step.
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3. Be sure the computer connected to the Gateway is configured to use the same subnet
mask and gateway settings as the Gateway (see “Viewing and Editing Your Local IP
Configuration” on page 47).
4. Ping the Gateway from a computer on the same subnet as the Gateway (see “Testing the
Path from a Computer to the ” on page 191). If the ping fails and there is no firewall
software installed, your network configuration, NIC, or cabling is probably at fault.
5. Release and renew the NIC’s IP address:
a. From the Windows task bar, click Start and select Run.
b. In the Open field, type cmd and click OK.
c. At the first command prompt, type ipconfig/release and press Enter.
d. At the next command prompt, type ipconfig/renew and press Enter.
e. Check whether your computer obtained an IP address other than 169.254.x.x or
0.0.0.0.
6. If the problem continues, power cycle the Gateway and computer:
a. Turn off the computer and turn off Gateway.
b. Turn on the Gateway and turn on computer.
7. For secured wireless connections, be sure you entered the correct security key when
connecting to a secured wireless network.
Unable to Access the Internet
If the Gateway cannot access the Internet, it could be due to several reasons, such as a
failed Internet connection, a misconfigured Gateway, or a misconfigured NIC.
1. Unplug the Gateway.
Note: If the Gateway is located where you cannot easily unplug it, you can restart it using the
Restore / Reboot Gateway menu (“Restoring or Rebooting the Gateway” on page 98).
2. Turn off the Gateway for three minutes.
3. Turn off all computers attached to your network.
4. Plug in the Gateway first, turn it on, and let it boot.
5. After the Gateway completes its connection to the ISP, restart your computer.
6. Check that the Gateway’s Online LED is ON. If it is OFF, replace the coaxial cable
connecting the Gateway to the cable service. If the Online LED does not go ON after the
Gateway has been powered up for several minutes, contact your cable provider to confirm
that the service is active.
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7. If the Online LED is ON, go to Connection > Status (see “Viewing the Gateway’s
Connection Status” on page 44). Then, under Comcast Network, confirm that Internet =
Active. If it isn’t, contact your cable provider to confirm that the service is active.
8. If you have more than one network port available on the Gateway, plug the cable into a
different port. If the network connection works, the original port on the Gateway is faulty.
However, you can continue to use the other ports.
9. Close any network applications that you might have opened, especially file-sharing and
peer-to-peer applications. These applications can consume large amounts of bandwidth
that can prevent you from being able to browse the Web.
10. Ping a location on the Internet (see “Testing the Path from a Computer to the Internet” on
page 192). For example, ping www.yahoo.com. If the ping succeeds, proceed to the
next step. If the ping fails:
Your Web browser may be misconfigured. Be sure you do not have an incorrect proxy
server setting in your Web browser.
If your computer is running a Microsoft Windows operating system, check whether the
computer has a corrupt winsock registry entry (refer to your Windows documentation).
The site might be down. Try to ping another site.
If your additional pings fail, please contact technical support.
11. Check your computer’s operating system to see whether the computer has connectivity (for
example, see Figure 105 and refer to the documentation for your operating system). If it
doesn’t, try using another computer and NIC attached to the Gateway to connect to the
Internet.
12. Try accessing the Internet with a different browser. If you succeed, the problem exists with
the previous browser you used.
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Unable to Access Networked Devices
If you are on a network, but cannot connect to any resources on the network:
1. The Ethernet cable may be worn. Replace the cable if it is worn.
2. The Ethernet cable may not be firmly connected at both ends. Secure the cable at both
ends. Often, just reseating the cable into a connector is all that is required.
3. The port on the Gateway may be bad. Plug the network cable into a different port on the
Gateway.
4. The NIC may be bad or the cable connected to the NIC may be the wrong kind of network
cable (for example, you may be using a straight-through cable when a crossover cable is
required). If you have another NIC available, try using it instead of the one currently used.
5. Ping the IP address of other computers and devices on your network.
6. For Windows operating systems:
– Try connecting to a computer on the network using Start \ Run and enter \\PCname,
where PCname is the name of the computer you want to connect to.
– Add the computer and its IP address to the LMHOSTS file. This is a text file that
resides in the Windows\System32\drivers\etc directory (for Windows2000 or
XP) and has the format IP_Address Computer_Name.
Tip: Browsing is fairly complicated issue and has a lot of places for failure. If you need to
have resources available, create shortcuts on your desktop instead.
Using the Ping Utility to Troubleshoot
You can use your computer’s ping utility to test the path from the computer to the Gateway
and from your computer to the Internet.
Testing the Path from a Computer to the Gateway
You can ping the Gateway to verify that the LAN path from your computer to the Gateway is
set up correctly. To ping the Gateway from a Windows computer:
1. From the Windows task bar, click Start and select Run.
2. In the Open field, type ping followed by the IP address of the Gateway.
3. Click OK. A message similar to the following appears (in this example, 192.168.0.1 is the
IP address entered as part of the ping command):
Pinging 192.168.0.1 with 32 bytes of data
If the destination IP address was contacted successfully, a message similar to the following
appears:
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Reply from 192.168.0.1: bytes=32 time=NN ms TTL=xxx
If the path was not contacted successfully, a message similar to the following appears:
Request timed out
If the path is not working properly:
The physical connections may be wrong. Be sure the Gateway’s Online LED is ON. If is
OFF, review “Basic ” on page 180.
Check that the corresponding LEDs on the NIC installed in your computer are ON (refer
to the documentation for your NIC). If they are OFF, verify that the Ethernet card driver
software and TCP/IP software are both installed and configured properly on your
computer.
Verify that the IP addresses for the Gateway and your computer are correct and that
both addresses are on the same subnet (for example, 192.168.1.x/255.255.255.0).
Testing the Path from a Computer to the Internet
After verifying that the path between your computer and Gateway is working properly, use
the following procedure to test the path from your computer to the Internet.
To test the path using ping from a Windows PC:
1. From the Windows task bar, click Start and select Run.
2. In the Open field, type cmd and click OK. A DOS command window appears.
3. At the > prompt, type ping -n 10 IPaddress where IPaddress is the IP address of a
remote device (such as your ISP’s server) or Web site (such as www.yahoo.com).
4. Press Enter. If the path is working, a reply similar to the one in the previous section
appears. If you do not receive replies:
Confirm that your computer has the IP address of the Gateway listed as the default
gateway. If your computer’s IP address is obtained automatically through DHCP, this
information will not be visible in your computer’s Control Panel. Verify that the Gateway’s
IP address is shown as the TCP/IP default gateway.
Check whether your computer’s network address(the portion of the IP address specified
by the netmask) is different than the network address of the remote device.
If your ISP assigned a host name to your computer, enter the name in the Host Name
field in the Add Computer Menu (see “Manually Adding Computers with Static IP
Addresses to the Wireless Network” on page 65).
5. When you finish, type exit at the command prompt and press Enter to close the window
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Using Ping on a Macintosh
To ping on a Macintosh:
1. Click on Go > Applications > Utilities.
2. Click on Network Utility, and then click the Ping tab. A page similar to the one in Figure
109 appears.
3. In the first field, enter the IP address you want to ping.
4. Using the options below the field, select an unlimited number of pings or send a specific
number of pings.
5. Click the Ping button.
If you receive reply from..., the destination IP address was contacted successfully.
If you receive request timed out, the destination IP address was not contacted
successfully.
If you receive destination host unreachable, you are not on the same subnet as the
destination address. Change your IP address to communicate with the destination address.
Figure 109. Ping Tab on the Network Utility Page
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Gateway Disconnects from the Internet
If the Gateway has been connected to the Internet for an extended period and holds an IP
address (DHCP lease) for a longer period of time than your ISP allows, it is not uncommon
for the Gateway to disconnect from the Internet. This is normal and does not indicate any
issue with the Gateway.
1. Unplug the power to the Gateway, then reconnect power.
Note: If the Gateway is located where you cannot easily unplug it, you can restart it using the
Restore / Reboot Gateway menu (“Restoring or Rebooting the Gateway” on page 98). If your
DHCP lease time seems to be extremely short, contact your ISP to see if there are other
issues on the network. You can reconfigure the Gateway’s lease time using the Local IP
Configuration menu (see “Viewing and Editing Your Local IP Configuration” on page 47).
2. Connect a computer to one of the Gateway’s LAN ports.
3. Restart your computer.
4. Reset the Gateway to its factory default settings using either the Reset button (see “Using
the Reset Button” on page 17) or the Restore / Reboot Gateway menu (see “Restoring or
Rebooting the Gateway” on page 98).
Note: This step removes all overrides made to the Gateway’s default settings and returns the
Gateway to its original factory default settings.
In certain network scenarios, it may be helpful to turn off all the equipment on your network,
and then turn the equipment all back on. Leaving some devices unplugged for up to five
minutes can also help.
If the disconnections are limited to wired clients only
Check your NIC settings and all cable routing, connections, and power supplies.
If the disconnections are limited to wireless clients only
Focus on factors that affect wireless clients, such as:
Network selection and security
Hardware access control
Client TCP/IP settings
Signal strength
Sources of interference
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Can you connect to the Internet directly?
5. Set up a computer to connect to the Internet directly, without using the Gateway.
6. If you cannot connect to the Internet without the Gateway, contact your ISP for assistance.
Slow Web Browsing
If you experience slow Web browsing with the Gateway:
1. Check for possible intrusion by spyware and viruses.
2. Clear browser settings and cache (refer to the documentation for your Web browser).
3. Stop other programs running in the background that are consuming bandwidth.
4. A specific site may be suffering from server issues, try another site.
5. Update the Gateway firmware.
Unable to Configure Port Forwarding
If you are not able to configure port forwarding for software applications, external servers or
gaming:
Ascertain the port(s) that the application or game calls for.
Some ISPs block ports, such as ports 20, 21, and 80. Check with ISP to confirm whether
it is blocking ports.
Reserve IP addresses for the computers to ensure they receive the appropriate IP
address(es) for the service created (see “Working with Connected Devices” on page 64.
Disable firewalls and stateful packet inspection (SPI) applications.
Create a dynamic DNS (DynDNS) account for dynamic IP addresses from the ISP.
Update the Gateway firmware.
Unable to Use Pass-thru VPN
If VPN pass-through is not working:
You may have to forward ports (see “Adding a Port Forwarding Rule” on page 85). Ports
50, 51, 500, 1701 and 1723 are standard VPN ports.
Update the Gateway firmware.
Gateway is Not Passing DHCP Address to a computer
If the Gateway is not passing DHCP addresses to a computer over a wired or wireless
connection:
1. Be sure computer IP is not statically set already.
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2. Release and renew the NIC’s IP address:
a. From the Windows task bar, click Start and select Run.
b. In the Open field, type cmd and click OK.
c. At the first command prompt, type ipconfig/release and press Enter.
d. At the next command prompt, type ipconfig/renew and press Enter.
3. For wired connections, be sure the physical cable connections are correct.
4. For wireless operation, verify that the Gateway’s SSID and security settings are correct
(see “Configuring Your Home Network” on page 60).
Determining a Computer’s MAC Address
The following sections describe how to obtain a computer’s MAC address.
Microsoft Windows
To determine the MAC address on a Windows computer:
1. From the Windows task bar, click Start and select Run.
2. In the Open field, type cmd and click OK. A DOS command window appears.
3. In the DOS command window, type ipconfig/all and press Enter.
4. This window displays your networking information. The MAC address appears as a
Physical Address below Ethernet adapter Local Area Connection. In the example in
Figure 110, the MAC address is 00-1E-8C-94-09-EA, which is the physical address of
the NIC card.
5. When you finish, type exit at the command prompt and press Enter to close the window.
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Figure 110. Example of MAC Address
Apple Macintosh Windows OS X
To determine the MAC address on a Mac running OS X, perform the following procedure.
The MAC address appears in the form of 00 0D 93 13 51 1A.
1. From the dock, select System Preferences.
2. Select Network, Select Location, Select Interface.
3. Perform one of the following steps:
For a wired Mac running Mac OS 10.2 or earlier, select the TCP/IP tab. The number next
to the Ethernet Address is your MAC address.
For a wired MAX running OS 10.3 and later), select the Ethernet tab. The number next
to the Ethernet ID is your MAC address.
For a wireless connection (AirPort), select AirPort tab . The number next to the AirPort
ID is your MAC address.
Sample IP Address
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Wireless Troubleshooting
The following sections cover troubleshooting procedures for wireless networking.
Checking the Gateway’s Wireless Connection
If you experience a problem with the Gateway’s wireless operation, log in to the Gateway’s
Web management interface and verify the wireless settings. In particular, the Gateway’s
Wireless Network Name (SSID) and security settings must the wireless computer settings
exactly.
1. Use an Ethernet cable to connect a computer to the Gateway.
2. Open a Web browser on the computer and log in to the Gateway’s Web management
interface.
3. Go to Connection > Status (see “Viewing the Gateway’s Connection Status” on page 44).
Then, under Local IP Network, check that an IP address is shown for the Internet Port. If
0.0.0.0 is shown, the Gateway has not obtained an IP address from your ISP.
4. Click Gateway in the menu bar, and then click the Wizard submenu.
5. Verify that the Gateway’s wireless configuration settings match those of the other wireless
devices in your wireless network. In the Home Network Wizard Page 2, confirm that the
case-sensitive Enter WiFI Network Name exactly matches the SSID of the other wireless
devices in your wireless network. For example, hOME is not the same as home or Home.
6. Access the Wireless menu by clicking Gateway in the menu bar and then clicking the
Connection and WiFi submenus. In Operation Mode, confirm that the correct setting is
used for your wireless network (see page 50).
Wireless Range is Low
If you wireless range is very low, or if your wireless computer cannot connect to your
wireless network, use the following procedure to improve the wireless range of the Gateway.
1. Review the guidelines under “Guidelines for Improving Your Wireless Network” on page
201.
2. Change the wireless channel of the Gateway. Just like one radio station may be clear while
another suffers from interference, sometimes one wireless channel is clearer than others.
To change channels:
a. Open a Web browser on the computer.
b. Log in to the Gateway’s Web management interface.
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c. Use the Channel Selection and Channel settings in the Wireless menu to select the
Gateway’s channel settings (see “Viewing and Editing Wireless Configuration” on page
49).
Note: You do not have to change your computer's configuration, because it automatically
detects the new channel.
Unable to Connect to a Wireless Network Using Windows XP and Vista
If you encounter the following when connecting to a wireless network using a Microsoft
Windows XP or Vista computer and the Gateway:
A message appears after entering the appropriate network or passphrase for a wireless
connection where Validating identity replaces the name of the wireless network,
A pop-up window asks for login credentials for the wireless connection, and
The following error message appears: Windows was unable to find a
certificate to log you on to the network.
Use the following procedure to create or add a wireless network profile manually on the
computer.
To add a wireless network on a Windows Vista computer manually
1. From the Windows task bar, click Start and select Network.
2. Select Network and Sharing Center.
3. Click Manage wireless networks.
4. Click Add and select Manually create a network profile.
5. Enter the SSID, select the type of security, and enter the wireless password in the
Security Key/Passphrase field.
6. Check the Start this connection Automatically and Connect even if the network is not
broadcasting checkboxes.
7. Click Next and close the window.
8. Go to the Network and Sharing Center and select Manage network connections.
9. Right-click Wireless network connection and select Status.
10. Click details and check the IPv4 address.
11. If there is a valid IPv4 address, check whether the computer can access the Internet
wireless.
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To add a wireless network on a Windows XP computer manually
Note: The following steps are for a wireless network that has WEP security.
1. From the Windows task bar, click Start and double-click Control Panel.
2. In the left pane, select Switch to Classic view.
3. Click Network Connections.
4. Right click Wireless Network Connections and select Properties.
5. Click on the Wireless Networks tab.
6. Click the Add button.
7. Enter the name of the wireless network (SSID).
8. Set the encryption type to WEP.
9. Clear the key is provided for me automatically check box.
10. Enter the network key and confirm it. Be sure This is a computer-to-computer (ad-hoc)
network is not selected.
11. Click OK and then click OK again.
12. Right-click Wireless Network Connections and select Status.
13. Click the Support tab and check for a valid IP address.
14. Check whether the computer can access the Internet wirelessly.
If you receive the same error message, ensure that IEEE 802.1x authentication of the
wireless adapter is disabled.
To disable IEEE 802.1x authentication
1. From the Windows task bar, click Start and select Run.
2. In the Open field, type ncpa.cpl and click OK.
3. Right-click the Wireless network connections icon, and select Properties.
4. Click the Wireless network tab.
5. Click the Properties button next to Remove.
6. Click the Authentication tab and uncheck the Enable IEEE 802.1x authentication for
this network checkbox.
7. Click OK to update the settings.
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Achieving Optimal Wireless Performance
To achieve optimal wireless performance with the Gateway, perform the following
procedure.
1. Right-click My Computer and select Properties.
2. Click the Hardware tab and click Device Manager.
3. Under Network adapters list, double-click your wireless NIC.
4. Click the Advanced tab. Under the Property field, select Wireless mode.
5. Select the highest value your NIC is capable of performing.
6. Click OK and try the new settings.
Guidelines for Improving Your Wireless Network
The following guidelines describe how to improve and secure your wireless network.
Position the Gateway and wireless access point(s) in a central location. If the
Gateway and access point(s) are located against an outside wall of your home or office,
the signal will be weak on the other side of your home or office.
Move the Gateway away from the floor, walls, and metal objects such as metal file
cabinets. Floors, walls, and metal interfere with the Gateway’s wireless signals. The
closer the Gateway is to these obstructions, the more severe the interference, and the
weaker your connection will be.
The Gateway supports STBC, which is a technique used to transfer multiple copies of
data by multiple antennas to improve data transfer. Using multiple antennas improves
data transfers and wireless stability. By default STBC is disabled on the Gateway. To
enable it, use the STBC option in the Wireless menu (see “Viewing and Editing Wireless
Configuration” on page 51).
Wireless repeaters extend your wireless network range, without requiring you to add
wiring. Place the wireless repeater halfway between your wireless access point and your
computer to boost to your wireless signal strength.
Wireless devices can broadcast on several different channels, similar to the way
radio stations use different channels. In the United States and Canada, these channels
are 1, 6, and 11. Just like you'll sometimes hear interference on one radio station while
another is perfectly clear, sometimes one wireless channel is clearer than others. If you
encounter interference, change the Gateway's channel using the Channel Selection
and Channel options in the Wireless menu (see “Viewing and Editing Wireless
Configuration” on page 49) to see whether your signal strength improves. You do not
need to change your computer's configuration, because it'll automatically detect the new
channel.
Troubleshooting Procedures
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If you have cordless phones or other wireless electronics in your home or office,
your computer might not be able to “hear” the Gateway over the noise from the other
wireless devices. To quiet the noise, avoid wireless electronics that use the 2.4 GHz
frequency. Instead, look for cordless phones that use the 5.8 GHz or 900 MHz
frequencies.
Update firmware and drivers for your wireless networking devices. Device
manufacturers, including SMC, regularly make free improvements to their devices that
improve performance. To obtain the latest firmware and driver updates for your devices,
visit the vendor’s Web site.
To improve the security of your wireless network, change the SSID to a different
name than the default. You can access the Gateway’s SSID setting using the Enter WiFI
Network Name option in Step 2 of the Home Network Wizard (see “Configuring Your
Home Network” on page 60). An SSID can be changed at any time, as long as the
change is also made on all wireless clients.
By default, most wireless access points broadcast the SSID to all wireless devices.
While this feature of WiFi network protocols is intended to allow clients to dynamically
discover and roam between WLANs, it also allows anyone with a wireless NIC to detect
the SSID you use to gain access to your wireless network. Therefore, you may want to
consider disabling this feature. For more information, refer to the documentation for your
wireless access points.
MAC filtering is the process of configuring a wireless access point with a list of MAC
addresses that will be allowed or not allowed to gain access to the rest of the network via
that access point. Only MAC addresses that are registered with the wireless access
point can gain access to the wireless network. The Gateway provides a similar feature
with its Private Wireless Network option in the Wireless to limit connections to certain
MAC addresses (see “Viewing and Editing Wireless Configuration” on page 49).
Guessing default user names and passwords for wireless access points is a common
practice hackers use to access wireless networks. Therefore, change the default user
name and password for your wireless access point and the configuration settings of your
devices. For information about changing the default username and password for the
Gateway, see “Changing the Login Password” on page 99.
Wireless IEEE 802.11n Guidelines
The wireless IEEE 802.11n standard is an extension to 802.11 specification developed by
the IEEE for wireless LAN (WLAN) technology. 802.11n builds upon previous 802.11
standards by adding multiple-input multiple-output (MIMO). The additional transmitter and
receiver antennas allow for increased data throughput, at speeds up to 100 Mbps, which is
4-to-5 times faster than 802.11g. 802.11n also offers a better operating distance than current
networks.
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If you use or are considering using 802.11n in your wireless network, observe the following
guidelines:
If your maximum data rate is 54 Mbps or lower, confirm your NIC is an 802.11n
adapter and not an older 802.11g adapter. Although 802.11g NICs can connect to the
newer 802.11n devices, high speeds and performance are possible only on connections
between a wireless N device (such as the Gateway) or access point (AP) and a wireless
N adapter. Therefore, you may need to upgrade your older wireless equipment to
achieve faster speed and performance.
While devices certified by the Wi-Fi Alliance are designed to work together regardless
of manufacturer, some proprietary features require compatible equipment to work.
Additionally, there may be interoperability issues with wireless 802.11n devices because
the official standard is not complete. Therefore, manufacturers are releasing
products. To prevent potential problems, use devices from the same manufacturer for
your wireless network.
Because the wireless 802.11n standard does not support WEP encryption, 802.11n
connections using WEP are limited to maximum wireless 802.11g speeds of 54 Mbps,
even on mixed 802.11/GN networks. Moreover, the first WPA version does not provide
maximum wireless performance on 802.11n networks. For these reasons, either:
– Upgrade your 802.11g equipment for 802.11n devices, or
– Configure the devices on your wireless network to use WPA2 (on the Gateway, this
setting is configured in the Encryption Method field in step 2 of the Home Network
Wizard – see page 63). For old 802.11g devices that support WEP encryption only,
check the vendor's Web site for updated drivers.
Wireless 802.11 N is backward compatible with older 802.11g wireless devices and
even older 802.11b devices. However, traffic on a wireless network is managed
differently when older devices connect to an 802.11n network that can adversely affect
speed and performance. Therefore, if you are not realizing optimum data and throughput
rates, you may want to configure the Gateway so it only offers connections to wireless
802.11n clients. To limit the types of clients allowed to connect, configure the Operation
Mode setting in the Wireless menu to allow only wireless 802.11n connections (see
page 50).
To exceed 130 Mbps on wireless 802.11n connections, the channel width must
double from 20 to 40 MHz. By default, the Gateway is configured for 20/40 MHz
operation. However, if this default setting has a negative impact on clients with low
signals, you might want to select 20 MHz operation in the Gateway’s Channel
Bandwidth setting in the Wireless menu (see page 51) to limit connections to 20 MHz
only.
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Application and Gaming Troubleshooting
Connecting to Messenger Services Behind the Gateway
If you experience intermittent errors, cannot connect to servers, or find some features not
working when using MSN or AIM Messenger with the Gateway:
You may have to open the following ports:
– For MSN Messenger, open port 443.
– For AIM, open port 5190.
Connecting to America Online Behind the Gateway
If you cannot connect to AOL servers on a computer after connecting to AOL using the
Gateway:
Create an account for the Gateway.
Create a password that is 8 alphanumeric characters long.
Append @aol.com to the end of the username.
Some AOL packages only allow for one internet connection.
Connecting to XBox Live, PSP, and Nintendo WFC
If you cannot connect to servers or experience server timeouts:
Disable firewall and SPI applications.
Reserve IP addresses for clients.
Putting the XBox or Nintendo DS in the DMZ.
Upgrade the latest firmware for your applications and Gateway.
Enable the Gateway’s UPnP feature (see “Discovering Devices” on page 92).
Open specific ports for the game server.
Enable wireless on PSP.
Nintendo DS does not support WPA or passphrase.
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Appendix A - Specifications
Compatibility
Platform independent – works with PC,OSX, Linux, MAC, UNIX
DOCSIS 1.0/1.1/2.0/3.0 compliant
IEEE 802.3, 802.3u
SPI firewall meet ICSA guidelines
Network Interface
10/100/1000 Base-T-Ethernet
USB2.0 port*
Wireless .11N MIMO
Ports
Four ports 10/100/1000 MDI/MDIX auto sensing switch
TR-68 coloring for 1 USB 2.0 Connector Type B (reserved for future use)
TR-68 coloring for 4 Ethernet port
Cable interface F type female 75 Ohm
Channel Bonding
Downstream: up to 4 channels
Upstream: up to 4 channels
Software Features
GUI displays common troubleshooting information, modem status, and feature setup
Full-featured CLI provides enhanced troubleshooting and setup
DHCP server
Ipv6 support coexist Ipv4
Downloadable configuration files allow for easy setup and installation.
Universal Plug and Play (UPnP) enabling any UPnP devices seamlessly
Specifications
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Quality of Services (QoS) ensures high quality performance
SAMBA for USB port connection of USB hard drives*
GUI/SNMP/CLI addition to present PHY usage (multiple channels parameters)
Port forwarding
64/256QAM auto detection
Independent resets for downstream and upstream blocks
Fragmentation and concatenation enabling Quality of Server (QoS) features
Supports 64/128/256 bit RC4 authentication and encryption
Network Protocols
IEEE 802.1d-compliant bridging ARP
DHCP Client/Server ICMP
UDP FTP/TFTP
DNS Relay Telnet
ToD Client
Security
Password protected configuration access with
multiple levels
VPN Passthrough (IPSec, PPTP,
L2TP)
Stateful Packet Inspection (SPI) Firewall Multiple User Profiles
Network Address Translation (NAT) Dynamic Address-User Mapping
Application Level Gateways (ALG) Web-based authentication
Intrusion Detection Comprehensive Logging
Denial of Service (DoS) prevention Domain Validation
Trojan Horse Prevention Content and Filtering Features
Smart Tracking DMZ
Specifications
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Receiver
Demodulation: 64/256QAM
Input Frequency Range: 88MHz- 1002MHz
Max speed: 38Mbps (64QAM) / 43Mbps (256QAM) per channel
– DOCSIS 5120kbps/10Mbps (QPSK/16QAM)
– DOCSIS 41.4 Mbps (64QAM)/55.2Mbps (256QAM)
– Bounding (DOCSIS) per channel
+222.48(+200) Mbps with 4 DS channel bounding (EuroDOCSIS)
Signal Level
-15dBmV to +15dBmV(Automatic gain controlled by CM)
17 dBmV
Transmitter
Modulation:
– TDMA: QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM
– S-CDMA QPSK, 8QAM, 16QAM, 32QAM, 64QAM,128QAM
Max Speed 320, 640, 1280, 2560, 5120 kbps
(QPSK),640, 1280, 2560, 5120, 10240kbps (160QAM)
+122.88(+108) Mbps with 4 US channel bounding (DOCSIS/EuroDOCSIS )
Frequency Range: 5 to 42MHz (edge to edge) DOCSIS
LEDs
Power
DS ( Downstream)
US (Upstream)
Online
Link
Diag
WPS
LAN (1-4)
WiFi
USB
Specifications
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Dimensions
L x W x H: 2 x 9 x 9 in (50.8 x 228.6 x 228.6 in)
Weight: 930 g (2.05 lbs)
Input Power
12V/2A
Regulatory Certification
FCC Part 15B Class B
UL/cUL
Power Supply Energy Star Rating
Level IV
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Appendix B - Compliances
FCC Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against radio interference in a
commercial environment. This equipment can generate, use and radiate radio frequency energy and, if not
installed and used in accordance with the instructions in this manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause interference, in which case
the user, at his own expense, will be required to take whatever measures are necessary to correct the
interference. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one
of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate this equipment.
IEEE 802.11b or 802.11g operation of this product in the U.S.A is firmware-limited to channels 1 through 11.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
The availability of some specific channels and/or operational frequency bands are country dependent and are
firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by
the end user.
Note to CATV System Installer - This reminder is provided to call the CATV systems installer's attention to
Section 820-93 of the National Electric Code which provide guideline for proper grounding and, in particular,
specify that the Coaxial cable shield shall be connected to the grounding system of the building, as close to the
point of cable entry as practical.
Compliances
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SMCD3GNV Wireless Cable Modem Gateway User Manual
FCC Part 68 Statement
This equipment complies with Part 68 of the FCC Rules. A label is attached to the equipment that contains,
among other information, its FCC registration number and ringer equivalence number. If requested, this
information must be provided to the telephone company.
This equipment uses the following USOC Jack: RJ-11.
An FCC-compliant telephone cord and modular plug is provided with this equipment. This equipment is designed
to be connected to the telephone network or premises wiring using a compatible modular jack, which is FCC Part
68 compliant. Connection to the telephone network should be made by using the standard modular telephone
jack.
The REN is useful to determine the quantity of devices that may be connected to the telephone line and still have
all of those devices ring when your telephone number is called. In most, but not all areas, the sum of RENs
should not exceed 5. To be certain of the number of devices that may be connected to the line, as determined by
the total RENs, contact the telephone company to determine the maximum REN for the calling area.
If this equipment causes harm to the telephone network, the telephone company may discontinue your service
temporarily. If advance notice is not practical, the telephone company will notify the customer as soon as
possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations, or procedures that could
affect the operation of the equipment. If this happens, the telephone company will provide advance notice in
order for you to make the necessary modifications in order to maintain uninterrupted service.
In the event this equipment should fail to operate properly, disconnect the unit from the telephone line. Try using
another FCC approved device in the same telephone jack. If the trouble persists, call the telephone company
repair service bureau. If the trouble does not persist and appears to be with this unit, disconnect the unit from the
telephone line and discontinue use of the unit until it is repaired. Please note that the telephone company may
ask that you disconnect the equipment from the telephone network until the problem has been corrected or until
you are sure that the equipment is not malfunctioning.
The user must use the accessories and cables supplied by the manufacturer to get optimum performance from
the product.
No repairs may be done by the customer. If trouble is experienced with this equipment, please contact your
authorized support provider for repair and warranty information. If the trouble is causing harm to the telephone
network, the telephone company may request you remove the equipment from the network until the problem is
resolved. This equipment cannot be used on telephone company provided coin service. Connection to Party Line
Service is subject to state tariffs.
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Index
A
Access types
disabling, 78, 152
enabling, 78, 152
Adding
blocked devices, 79, 153
computers with static IP address, 65, 136, 139
port forwarding rule, 85, 158
port triggering rule, 88, 161
Advanced Features menu, 84, 157
Apple Macintosh
IP address, 187
MAC address, 197
Ping utility, 193
TCP/IP configuration, 33
At a Glance menu, 42, 107
B
Basic setup procedures, 180
Battery
menu, 57, 128
Blocking
devices, 79, 153
keywords, 72, 145
services, 75
sites, 69, 143
Bottom panel, 16
Browsing on Web is slow, 195
C
Change Password menu, 99, 178
Comcast Network menu, 46
Comcast network status, 44, 111
Computers
adding, 65, 136, 139
editing, 66, 138, 141
Configuration, 36, 100
TCP/IP, 24
Configuring
PC for TCP/IP, 183
Configuring login password, 99, 178
Connected Devices menu, 64, 135
Connecting
LAN, 21
public telephone network, 22
WAN, 22
Conventions in this document, ix
D
Destination address, testing connection to, 97, 176
Determining
IP address, 183
MAC address, 196
Device Discovery menu, 92, 171
DHCP
address is not passed to computers, 195
beginning address, 48, 113
configuring computers to use, 24
ending address, 48, 113
lease time, 48, 113
Disabling
access types, 78, 152
managed devices, 78, 152
port blocking, 91
port forwarding, 87, 160, 163
port triggering, 87, 90, 160
Disabling firewall, 35
Disabling proxy settings
Firefox, 34
Internet Explorer, 34
Index
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Safari, 35
Disabling security software, 35
DMZ (Demilitarized Zone) menu, 165
Document
conventions, ix
organization, ix
Downloading
logs, 95
reports, 83
E
Editing computers with static IP address, 66, 138,
141
Enabling
access types, 78, 152
managed devices, 78, 152
port blocking, 91
port forwarding, 87
port triggering, 87, 90, 160
F
Factory defaults
resetting and keeping, 98, 177
restoring, 17, 98, 177
Filters
logs, 94, 174
reports, 82
Firefox, disabling proxy settings, 34
Firewall menu, 53, 123
Firewall, disabling, 35
Front panel, 13
G
Gateway
bottom panel, 16
configuring, 36, 100
connecting to the LAN, 21
connecting to the public telephone network, 22
connecting to the WAN, 22
connectivity to destination address, 97, 176
connectivity to IP address, 97, 176
disconnects from the Internet, 194
front panel, 13
installing, 18
key features, viii
locating, 19
package contents, 12
powering on, 23
rear panel, 15
rebooting and restoring custom settings, 17
resetting, 98, 177
restoring factory defaults, 17, 98, 177
specifications, 205
system requirements, 12
top panel, 16
troubleshooting, 94, 173
Web management, 37, 101
Gateway menu, 43, 106
Gateway port status
Ethernet, 58, 129
wireless, 59, 130
H
Home Network Wizard menu, 60, 131
I
Installing
Gateway, 18
Internet
Gateway disconnects, 194
testing path from a computer, 192
unable to access, 189
Internet Explorer, disabling proxy settings, 34
IP address
determining, 183
IPv4, 47, 112
IPv6, 47, 112
testing connection to, 97, 176
IPv4 addressing, 47, 112
IPv6 addressing, 47, 112
Index
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SMCD3GNV Wireless Cable Modem Gateway User Manual
K
Key features, viii
Keywords, blocking, 72, 145
L
LAN connection, 21
LAN Ethernet menu, 58, 129
Local IP
Configuration menu, 47, 112
network status, 44, 111
Locating the Gateway, 19
Log filters, 94, 174
defining, 95
Logging in to Web management, 37, 101
Login password
changing, 99, 178
entering, 37, 101
Logs
downloading, 95
printing, 95
Logs menu, 94, 174
M
MAC address
determining, 196
viewing, 59, 130
Managed devices
disabling, 78, 152
enabling, 78, 152
Managed Devices menu, 78, 152
Managed Services menu, 75
Managed Sites menu, 68, 142
Menus
DMZ (Demilitarized Zone), 165
Menus in Web management, 38, 40, 102, 104
Microsoft
TCP/IP configuration for Windows 2000, 25, 26
TCP/IP configuration for Windows 7, 30
TCP/IP configuration for Windows Vista, 27
N
Network Diagnostic Tools menu, 96, 175
P
Package contents, 12
Parental Control menu, 68, 142
Pass-thru VPN troubleshooting, 195
Password Settings menu, 99, 178
Ping
testing the path from
a computer to the Gateway, 191
a computer to the Internet, 192
Ping utility, 191
on a Macintosh, 193
Port Blocking menu, 91
Port forwarding
disabling, 87, 160, 163
enabling, 87
enabling or disabling, 84, 157
rule, 85, 158
unable to configure, 195
Port status
Ethernet, 58, 129
wireless, 59, 130
Port trigger rule, 88, 161
Port triggering
disabling, 90
enabling, 90
Port Triggering menu, 87, 160
Powering-on the Gateway, 23
Printing
logs, 95
reports, 83
Proxy settings, 34
Public telephone network connection, 22
R
Rear panel, 15
Rebooting
restoring custom settings, 17
Report filters, 82
Index
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SMCD3GNV Wireless Cable Modem Gateway User Manual
defining, 83
Reports
downloading, 83
printing, 83
Reports menu, 82
Requirements, 12
Resetting
Gateway, 98, 177
Wi-Fi router, 98, 177
Restore / Reboot Gateway menu, 98, 177
Restoring factory defaults, 17, 98, 177
S
Safari, disabling proxy settings, 35
Security software, 35
Services, blocking, 75
Sites, blocking, 69, 143
Slow Web browsing, 195
Software menu, 55, 125
Specifications, 205
Status menu, 44, 111
System Hardware menu, 56, 127
System requirements, 12
System software, 55, 125
T
TCP/IP configuration, 24
Apple Macintosh, 33
Microsoft Windows 2000, 25, 26
Microsoft Windows 7, 30
Microsoft Windows Vista, 27
Testing connection to
destination address, 97, 176
IP address, 97, 176
Testing the path from a computer to
the Gateway, 191
the Internet, 192
Top panel, 16
Troubleshooting
basic setup procedures, 180
Gateway Disconnects from the Internet, 194
Gateway is not passing DHCP to computers, 195
Ping utility, 191
Ping utility on Macintosh, 193
slow Web browsing, 195
testing the path from
a computer to the Gateway, 191
a computer to the Internet, 192
unable to
use pass-thru VPN, 195
unable to access Gateway, 188
unable to access the Internet, 189
unable to configure port forwarding, 195
unable to connect to a wireless network, 199
unable to connect to networked devices, 191
unable to log In to Gateway, 188
wireless, 198
Troubleshooting menu, 94, 173
U
Unable to
access Gateway, 188
access the Internet, 189
configure port forwarding, 195
connect to a wireless network, 199
connect to networked devices, 191
log In to Gateway, 188
use pass-thru VPN, 195
V
VPN troubleshooting, 195
W
WAN connection, 22
Web browsing is slow, 195
Web management
DMZ (Demilitarized Zone) menu, 165
logging in, 37, 101
menus, 38, 40, 102, 104
Web management menus
Advanced Features, 84, 157
At a Glance, 42, 107
Battery, 57, 128
Index
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SMCD3GNV Wireless Cable Modem Gateway User Manual
Change Password, 99, 178
Comcast Network, 46
Connected Devices, 64, 135
Device Discovery, 92, 171
Firewall, 53, 123
Gateway, 43, 106
Home Network Wizard, 60, 131
LAN Ethernet, 58, 129
Local IP Configuration, 47, 112
Logs, 174
Logs menu, 94
Managed Devices, 78, 152
Managed Services, 75
Managed Sites, 68, 142
Network Diagnostic Tools menu, 96, 175
Parental Controls, 68, 142
Port Blocking, 91
Port Triggering, 87, 160
Reports, 82
Restore / Reboot Gateway, 98, 177
Software, 55, 125
Status, 44, 111
System Hardware, 56, 127
Troubleshooting, 94, 173
WiFi, 59, 130
Wireless, 49, 114
XFINITY Network, 121
WiFi menu, 59, 130
Wi-Fi network status, 44, 111
Wi-Fi router, resetting, 98, 177
Wireless
improving performance, 201
improving performance for 802.11N, 202
optimizing performance, 201
range is low, 198
Wireless menu, 49, 114
Wireless troubleshooting, 198
X
XFINITY Network menu, 121
FCC Statement:
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one of the following measures:
● Reorient or relocate the receiving antenna.
● Increase the separation between the equipment and receiver.
● Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
● Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of
other channels is not possible.
This device and its antenna(s) must not be co-located or operation in conjunction with any other
antenna or transmitter.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.