SMC SMCD3GN2 User Manual
y
DOCSIS 3.0 Wireless Cable Modem Gatewa
FastFind Links
Getting to Know Your Gateway
SMCD3GN2 User Manual
Installing Your Gateway
Configuring Your Computer for TCP/IP
Configuring Your Gateway
SMC Networks
20 Mason
Irvine, CA. 92618
U.S.A.
Copyright © 2011 SMC Networks
All Rights Reserved
Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However,
no responsibility is assumed by SMC for its use, or for any infringements of patents or other rights of
third parties which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of SMC. SMC reserves the right to change specifications at any time
without notice
No part of this publication may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying and recording, or stored in a database or retrieval system for
any purpose without the express written permission of SMC.
Microsoft and Windows are registered trademarks of Microsoft Corporation. Apple and Macintosh are
registered trademarks of Apple, Inc. All other brands, product names, trademarks, or service marks
are property of their respective owners.
This product (Model:SMCD3GN2) includes software code developed by third parties, including
software code subject to the GNU General Public License (“GPL”) or GNU Lesser General Public
License (“LGPL”). As applicable, the terms of the GPL and LGPL, and information on obtaining
access to the GPL code and LGPL used in this product, are available to you at http://gpl.smc.com/.
The GPL code and LGPL code used in this product is distributed WITHOUT ANY WARRANTY and is
subject to the copyrights of one or more authors. For details, see the GPL Code and LGPL Code for
this product and the terms of the GPL and LGPL.
SMCD3GN2 Wireless Cable Modem Gateway User Manual
May 26, 2011
Contents
Preface...................................................................................................................... v
Key Features.............................................................................................................. vi
Document Organization..............................................................................................vii
Document Conventions..............................................................................................vii
Safety and Warnings............................................................................................vii
Typographic Conventions..........................................................................................viii
1 Getting to Know Your Gateway........................................................................... 9
Unpacking Package Contents...................................................................................10
System Requirements...............................................................................................10
Front Panel................................................................................................................11
Configuring Wireless Security...................................................................................13
Rear Panel ................................................................................................................13
Restoring Factory Defaults........................................................................................14
2 Installing Your Gateway..................................................................................... 15
Finding a Suitable Location.......................................................................................16
Connecting to the LAN..............................................................................................16
Connecting the WAN.................................................................................................17
Powering on the Gateway.........................................................................................17
3 Configuring Your Computer for TCP/IP............................................................ 18
Configuring Microsoft Windows 2000........................................................................19
Configuring Microsoft Windows XP...........................................................................20
Configuring Microsoft Windows Vista........................................................................21
Configuring Microsoft Windows 7..............................................................................23
Configuring an Apple® Macintosh® Computer...........................................................25
4 Configuring Your Gateway ................................................................................ 27
Pre-configuration Guidelines.....................................................................................28
Disabling Proxy Settings......................................................................................28
Disabling Proxy Settings in Internet Explorer ................................................28
Disabling Proxy Settings in Firefox................................................................28
Disabling Proxy Settings in Safari .................................................................29
Disabling Firewall and Security Software............................................................29
Accessing the Gateway’s Web Management............................................................30
Understanding the Web Management Interface Screens .........................................31
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SMCD3GN2 Wireless Cable Modem User Manual
Contents
Web Management Interface Menus and Submenus.................................................32
System Settings Menu.........................................................................................34
Password Settings Menu.....................................................................................35
LAN Settings Menu..............................................................................................36
Ether Switch Port Control Menu..........................................................................39
LAN Access Control Menu ..................................................................................41
Controlling LAN Access.................................................................................42
Adding and Deleting Trusted Client Stations.................................................42
Adding and Deleting Untrusted Client Stations .............................................43
QoS Settings Menu .............................................................................................44
Port Based QoS Menu...................................................................................45
CoS Settings Menu........................................................................................46
DSCP Based QoS Menu ...............................................................................48
Queue Settings Menu....................................................................................50
DSCP Remarking Menu................................................................................52
Wireless Basic Settings Menu.............................................................................54
Wireless Encryption Settings Menu.....................................................................56
WPS Setup..........................................................................................................60
MAC Filtering.......................................................................................................63
Adding and Deleting Wireless Client Stations...............................................64
Advanced Wireless Settings Menu......................................................................65
Port Forwarding Menu.........................................................................................67
Adding Predefined Services..........................................................................68
Adding Customer-Defined Services ..............................................................70
Security Settings (Firewall) Menu........................................................................73
Enabling or Disabling Firewall.......................................................................73
Configuring Access Control...........................................................................74
Configuring Special Applications...................................................................87
Configuring URL Blocking .............................................................................90
Configuring Schedule Rules..........................................................................92
Configuring Email and Syslog Alerts .............................................................93
Configuring DMZ Settings .............................................................................97
Using the Tools Settings Menu............................................................................98
Using the Reboot Menu to Reboot the Gateway.................................................99
Viewing Status Information................................................................................100
Viewing Cable Status Information .....................................................................101
Appendix A - Compliances ................................................................................. 103
Appendix B - Technical Specifications.............................................................. 104
Index..................................................................................................................... 108
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Congratulations on your purchase of your SMCD3GN2 Wireless Cable Modem Gateway.
Your SMCD3GN2 Wireless Cable Modem Gateway is the ideal all-in-one wired and wireless
solution for the home or business environment. SMC is proud to provide you with a powerful,
yet simple communication device for connecting your local area network (LAN) to the
Internet.
This user manual contains all the information you need to install and configure your new
SMCD3GN2 Wireless Cable Modem Gateway.
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Key Features
The following list summarizes the Gateway’s key features.
y Integrated, CableLabs-compliant DOCSIS 1.1/ 2.0 /3.0 cable modem
y Four 10/100/1000 Mbps Auto-Sensing LAN ports with Auto-MDI/MDIX
y High-speed 300 Mbps IEEE 802.11n Wireless Access Point
y Dynamic Host Configuration Protocol (DHCP) for dynamic IP configuration, and Domain
Name System (DNS) for domain name mapping
y One USB 2.0 port
y IEEE 802.11 b/g/n interoperability with multiple vendors
y Wireless WEP, WPA, and WPA2 encryption, Hide SSID, and MAC Filtering
y VPN pass-through support using PPTP, L2TP, or IPSec
y Advanced SPI firewall Gateway for enhanced network security from attacks over the
Internet:
– Firewall protection with Stateful Packet Inspection
– Client privileges
– Hacker prevention
– Protection from denial of service (DoS) attacks
– Network Address Translation (NAT)
y Universal Plug and Play (UPnP) enables seamless configuration of attached devices
y Quality of Service (QoS) ensures high-quality performance with existing networks
y Effortless plug-and-play installation
y Intuitive graphical user interface (GUI) configuration, regardless of operating system
y Comprehensive front panel LEDs for network status and troubleshooting
y Compatible with all popular Internet applications
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SMCD3GN2 Wireless Cable Modem User Manual
Preface
Document Organization
This document consists of four chapters and two appendixes.
y Chapter 1 - describes the contents in the Gateway package, system requirements, and
an overview of the Gateway’s front and rear panels.
y Chapter 2 - describes how to install the Gateway.
y Chapter 3 - describes how to configure TCP/IP settings on the computer you will use to
configure the Gateway.
y Chapter 4 - describes how to configure the Gateway.
y Appendix A - contains compliance information.
y Appendix B - lists the Gateway’s technical specifications.
Document Conventions
This document uses the following conventions to draw your attention to certain information.
Safety and Warnings
This document uses the following symbols to draw your attention to certain information.
Symbol Meaning Description
Note Notes emphasize or supplement important points of the main text.
Tip Tips provide helpful information, guidelines, or suggestions for performing tasks more
Warning Warnings indicate that failure to take a specified action could result in damage to the
Electric Shock Hazard This symbol warns users of electric shock hazard. Failure to take appropriate
effectively.
device.
precautions such as not opening or touching hazardous areas of the equipment could
result in injury or death.
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Preface
Typographic Conventions
This document also uses the following typographic conventions.
Convention Description
Bold Indicates text on a window, other than the window title, including menus, menu options, buttons, fields, and labels.
Italic Indicates a variable, which is a placeholder for actual text provided by the user or system. Angled brackets (< >)
screen/code Indicates text that is displayed on screen or entered by the user.
< > angled
brackets
[ ] square
brackets
{ } braces Indicates required or expected values.
| vertical bar Indicates that you have a choice between two or more options or arguments.
are also used to indicate variables.
Indicates a variable, which is a placeholder for actual text provided by the user or system. Italic font is also used to
indicate variables.
Indicates optional values.
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SMCD3GN2 Wireless Cable Modem User Manual
1 Getting to Know Your Gateway
Before you install your SMCD3GN2 Wireless Cable Modem Gateway, check the package
contents and become familiar with the Gateway’s front and back panels.
The topics covered in this chapter are:
y Unpacking Package Contents (page 10)
y System Requirements (page 10)
y Front Panel (page 11)
y Configuring Wireless Security (page 13)
y Rear Panel (page 13)
y Restoring Factory Defaults (page 14)
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Unpacking Package Contents
Your SMCD3GN2 package should include the following items:
y One SMCD3GN2 Wireless Cable Modem Gateway
y One power cord
y One Category 5E Ethernet cable
y One CD that contains this User Manual
System Requirements
To complete the installation, you will need the following items:
y Provisioned Internet access on a cable network that supports cable modem service
y A computer with a wired network adapter with TCP/IP installed
y A Java-enabled Web browser, such as Microsoft Internet Explorer 5.5 or above
y Microsoft
®
Windows® 2000 or higher for USB driver support
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Front Panel
The front panel of your SMCD3GN2 Wireless Cable Modem Gateway contains a set of lightemitting diode (LED) indicators. These LEDs show the status of the Gateway and simplify
troubleshooting. The front panel also contains a WPS button for configuring wireless security
automatically.
Figure 1 shows the front panel of your SMCD3GN2 Wireless Cable Modem Gateway. Table
1 describes the front panel LEDs.
Figure 1. Front Panel of SMCD3GN2 Wireless Cable Modem Gateway
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Table 1. Front Panel LEDs
LED Color Description
POWER Green ON = power is supplied to the Gateway.
OFF = power is not supplied to the Gateway.
DS
DS and US Both DS and US blinking together = operator is performing maintenance.
US
ONLINE Green Blinking =.cable interface is acquiring IP, ToD, CM configuration.
ETH 1 – ETH 4
WIFI Green Blinking = data is transmitting.
Green Blinking = scanning for DS channel.
ON = synchronized on 1 channel only.
Blue ON = synchronized with more than 1 channel (DS Bond mode).
Green Blinking = ranging is in progress.
ON = ranging is complete on 1 channel only.
OFF = scanning for DS channel.
Blue ON = ranging is complete, operate with more than 1 channel (US Bond mode).
ON = Gateway is operational.
OFF = Gateway is offline.
Green Blinking = data is transmitting.
ON = connected at 10 or 100 Mbps.
OFF = no Ethernet link detected.
Blue Blinking = data is transmitting.
ON = connected at 1 Gbps.
OFF = no Ethernet link detected.
ON = Wi-Fi is enabled.
OFF = Wi-Fi is disabled.
USB Green Reserved for future use.
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Configuring Wireless Security
The front panel has a WPS button for configuring wireless security automatically. Pressing
this button for 5 seconds automatically configures wireless security. If the client device
supports WPS Push Button Configuration (PBC), press the button on the client within 60
seconds to automatically configure security on the client.
After pressing this button for 5 seconds, the WPS LED on the front panel flashes. When a
client joins the network successfully, the LED remains ON until the next WPS action or the
device reboots. If no client joins, the LED stops blinking after 4 minutes.
Rear Panel
The rear panel of your SMCD3GN2 Wireless Cable Modem Gateway contains a reset button
and the ports for attaching the supplied power adapter and making additional connections.
Figure 2 shows the rear panel components and Table 2 describes their meanings.
Figure 2. Rear View of your SMCD3GN2 Wireless Cable Modem Gateway
Table 2. SMCD3GN2 Wireless Cable Modem Gateway Rear Panel Components
Item Description
Reset button Use this button to reset the power or restore the default factory settings (see “Restoring Factory
Defaults” on the next page). This button is recessed to prevent accidental resets of the Gateway.
USB USB 2.0 high-speed port for storing configurations externally.
ETH 1 - 4 Four 10/100/1000 auto-sensing RJ-45 switch ports. Connect devices on your local area network
such as a computer, hub, or switch to these ports.
Cable Connect your coaxial cable line to this port.
Power Connect the supplied power cord to this port.
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SMCD3GN2 Wireless Cable Modem User Manual
Getting to Know Your Gateway
Restoring Factory Defaults
The Reset button on the back panel can be used to return the Gateway to its factory default
settings. As a result, any changes made to the Gateway’s default settings will be lost.
If you do not have physical access to the Gateway, you can use the GUI to either power
cycle the Gateway (see “Using the Reboot Menu to Reboot the Gateway” on page 99) or
return the Gateway to its factory default settings (see “Using the Tools Settings Menu” on
page 98).
The following procedure describes how to use the Reset button to power cycle the Gateway
and return it to its original factory default settings.
1. Leave power plugged into the Gateway.
2. Find the Reset button on the back panel, then press and hold it for at least 10 seconds.
3. Release the Reset button.
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SMCD3GN2 Wireless Cable Modem User Manual
2 Installing Your Gateway
This chapter describes how to install your SMCD3GN2 Wireless Cable Modem Gateway.
The topics covered in this chapter are:
y Finding a Suitable Location (page 16)
y Connecting to the LAN (page 16)
y Connecting the WAN (page 17)
y Powering on the Gateway (page 17)
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SMCD3GN2 Wireless Cable Modem User Manual
Installing Your Gateway
Finding a Suitable Location
The SMCD3GN2 Wireless Cable Modem Gateway can be installed in any location with
access to the cable network. All of the cables connect to the rear panel of the Gateway for
better organization and utility. The LED indicators on the front panel are easily visible to
provide you with information about network activity and status.
For optimum performance, the location you choose should:
y Be close to a working AC power outlet
y Allow sufficient air flow around the Gateway to keep the device as cool as possible
y Not expose the Gateway to a dusty or wet environment
y Be an elevated location such as a high shelf, keeping the number of walls and ceilings
between the Gateway and your other devices to a minimum
y Be away from electrical devices that are potential sources of interference, such as ceiling
fans, home security systems, microwaves, or the base for a cordless phone
y Be away from any large metal surfaces, such as a solid metal door or aluminum studs.
Large expanses of other materials such as glass, insulated walls, fish tanks, mirrors,
brick, and concrete can also affect your wireless signal
Connecting to the LAN
Using an Ethernet LAN cable, you can connect the Gateway to a desktop computer,
notebook, hub, or switch. Your SMCD3GN2 Wireless supports auto-MDI/MDIX, so you can
use either a standard straight-through or crossover Ethernet cable.
1. Connect either end of an Ethernet cable to one of the four ETH ports on the rear panel of
the Gateway (see Figure 3).
Figure 3. Connecting to an ETH Port on the Gateway Rear Panel
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SMCD3GN2 Wireless Cable Modem User Manual
Installing Your Gateway
2. Connect the other end of the cable to your computer’s network-interface card (NIC) or to
another network device (see Figure 4).
Figure 4. Connecting the Gateway to the a Laptop or Desktop Computer
Connecting the WAN
To connect the Gateway to a Wide Area Network (WAN) interface:
1. Connect a coaxial cable to the port labeled Cable on the rear panel of the Gateway from a
cable port in your home or office (see Figure 2 on page 13). Use only manufactured coaxial
patch cables with F-type connectors at both ends for all connections.
2. Hand-tighten the connectors to secure the connection.
Powering on the Gateway
After making your LAN and WAN connections, use the following procedure to power on the
Gateway:
1. Connect the supplied power cord to the port on the rear panel of the Gateway (see Figure
2 on page 13).
2. Connect the other end of the power cord to a working power outlet. The Gateway powers
on automatically, the POWER LED on the front panel goes ON, and the other front panel
LEDs show the Gateway’s status (see Table 1 on page 12).
WARNING: Only use the power cord supplied with the Gateway. Using a different power cord
can damage the Gateway and void the warranty.
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SMCD3GN2 Wireless Cable Modem User Manual
3 Configuring Your Computer for TCP/IP
After you install your SMCD3GN2 Wireless Cable Modem Gateway, configure the TCP/IP
settings on a computer that will be used to configure the Gateway. This chapter describes
how to configure TCP/IP for various Microsoft Windows and Apple Macintosh operating
systems.
The topics covered in this chapter are:
y Configuring Microsoft Windows 2000 (page 19)
y Configuring Microsoft Windows XP (page 20)
y Configuring Microsoft Windows Vista (page 21)
y Configuring Microsoft Windows 7 (page 23)
y Configuring an Apple
®
Macintosh® Computer (page 25)
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows 2000
Use the following procedure to configure your computer if your computer has Microsoft
Windows 2000 installed.
1. On the Windows taskbar, click Start, point to Settings, and then click Control Panel.
2. In the Control Panel window, double-click the Network and Dial-up Connections icon. If
the Ethernet adapter in your computer is installed correctly, the Local Area Connection
icon appears.
3. Double-click the Local Area Connection icon for the Ethernet adapter connected to the
Gateway. The Local Area Connection Status dialog box appears (see Figure 5).
Figure 5. Local Area Connection Status Window
4. In the Local Area Connection Status dialog box, click the Properties button. The Local
Area Connection Properties dialog box appears.
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol (TCP/IP)
is checked. Then select Internet Protocol (TCP/IP) and click the Properties button.
6. Click Obtain an IP address automatically to configure your computer for DHCP.
7. Click the OK button to save this change and close the Local Area Connection Properties
dialog box.
8. Click OK button again to save these new changes.
9. Restart your computer.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows XP
Use the following procedure to configure a computer running Microsoft Windows XP with the
default interface. If you use the Classic interface, where the icons and menus resemble
previous Windows versions, perform the procedure under “Configuring Microsoft Windows
2000” on page 19.
1. On the Windows taskbar, click Start, click Control Panel, and then click Network and
Internet Connections.
2. Click the Network Connections icon.
3. Click Local Area Connection for the Ethernet adapter connected to the Gateway. The
Local Area Connection Status dialog box appears.
4. In the Local Area Connection Status dialog box, click the Properties button (see Figure 6).
The Local Area Connection Properties dialog box appears.
Figure 6. Local Area Connection Status Window
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol (TCP/IP)
is checked. Then select Internet Protocol (TCP/IP) and click the Properties button. The
Internet Protocol (TCP/IP) Properties dialog box appears.
6. In the Internet Protocol (TCP/IP) Properties dialog box, click Obtain an IP address
automatically to configure your computer for DHCP. Click the OK button to save this
change and close the Internet Protocol (TCP/IP) Properties dialog box.
7. Click the OK button again to save your changes.
8. Restart your computer.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows Vista
Use the following procedure to configure a computer running Microsoft Windows Vista with
the default interface. If you use the Classic interface, where the icons and menus resemble
previous Windows versions, perform the procedure under “Configuring Microsoft Windows
2000” on page 19.
1. On the Windows taskbar, click Start, click Control Panel, and then select the Network
and Internet icon.
2. Click View Networks Status and tasks and then click Management Networks
Connections.
3. Right-click the Local Area Connection icon and click Properties.
4. Click Continue. The Local Area Connection Properties dialog box appears.
5. In the Local Area Connection Properties dialog box, verify that Internet Protocol
(TCP/IPv4) is checked. Then select Internet Protocol (TCP/IPv4) and click the
Properties button (see Figure 7). The Internet Protocol Version 4 Properties dialog box
appears.
Figure 7. Local Area Connection Properties Window
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
6. In the Internet Protocol Version 4 Properties dialog box, click Obtain an IP address
automatically to configure your computer for DHCP (see Figure 8).
Figure 8. Internet Protocol Properties Window
7. Click the OK button to save your changes and close the dialog box.
8. Click the OK button again to save your changes.
Figure 9. Local Area Connection Status Window
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Configuring Microsoft Windows 7
Use the following procedure to configure a computer running Microsoft Windows 7.
1. In the Start menu search box, type: ncpa.cpl
Figure 10. Typing ncpa.cpl in the Start Menu Box
The Network Connections List appears.
Figure 11. Example of Network Connections List
2. Right-click the Local Area Connection icon and click Properties.
3. In the Networking tab, click either Internet Protocol Version 4 (TCP/IPv4) or Internet
Protocol Version 6 (TCP/IPv6), and then click Properties.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 12. Local Area Network Connection Properties Dialog Box
4. In the properties dialog box, click Obtain an IP address automatically to configure your
computer for DHCP (see Figure 13).
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 13. Properties Window
5. Click the OK button to save your changes and close the dialog box.
6. Click the OK button again to save your changes.
Configuring an Apple® Macintosh® Computer
The following procedure describes how to configure TCP/IP on an Apple Macintosh running
Mac OS 10.2. If your Apple Macintosh is running Mac OS 7.x or later, the steps you perform
and the screens you see may differ slightly from the following. However, you should still be
able to use this procedure as a guide to configuring your Apple Macintosh for TCP/IP.
1. Pull down the Apple Menu, click System Preferences, and select Network.
2. Verify that the NIC connected to your SMCD3GN2 is selected in the Show field.
3. In the Configure field on the TCP/IP tab, select Using DHCP (see Figure 14).
4. Click Apply Now to apply your settings and close the TCP/IP dialog box.
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Computer for TCP/IP
Figure 14. Selecting Using DHCP in the Configure Field
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SMCD3GN2 Wireless Cable Modem User Manual
4 Configuring Your Gateway
This chapter describes how to use a Web browser to configure the Gateway.
The topics covered in this chapter are:
y Pre-configuration Guidelines (page 28)
y Accessing the Gateway’s Web Management (page 30)
y Understanding the Web Management Interface Screens (page 31)
y Web Management Interface Menus (page 32)
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SMCD3GN2 Wireless Cable Modem User Manual
Configuring Your Gateway
Pre-configuration Guidelines
Before you configure the Gateway, observe the guidelines in the following sections.
Disabling Proxy Settings
Disable proxy settings in your Web browser. Otherwise, you will not be able to view the
Gateway’s Web-based configuration pages.
Disabling Proxy Settings in Internet Explorer
The following procedure describes how to disable proxy settings in Internet Explorer 5 and
later.
1. Start Internet Explorer.
2. On your browser’s Tool menu, click Options. The Internet Options dialog box appears.
3. In the Internet Options dialog box, click the Connections tab.
4. In the Connections tab, click the LAN settings button. The Local Area Network (LAN)
Settings dialog box appears.
5. In the Local Area Network (LAN) Settings dialog box, uncheck all check boxes.
6. Click OK until the Internet Options window appears.
7. In the Internet Options window, under Temporary Internet Files, click Settings.
8. For the option Check for newer versions of stored pages, select Every time I visit the
webpage.
9. Click OK until you close all open browser dialog boxes.
Disabling Proxy Settings in Firefox
The following procedure describes how to disable proxy settings in Firefox.
1. Start Firefox.
2. On your browser’s Tools menu, click Options. The Options dialog box appears.
3. Click the Advanced tab.
4. In the Advanced tab, click the Network tab.
5. Click the Settings button.
6. Click Direct connection to the Internet.
7. Click the OK button to confirm this change.
SMCD3GN2 Wireless Cable Modem User Manual
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Configuring Your Gateway
Disabling Proxy Settings in Safari
The following procedure describes how to disable proxy settings in Safari.
1. Start Safari.
2. Click the Safari menu and select Preferences.
3. Click the Advanced tab.
4. In the Advanced tab, click the Change Settings button.
5. Choose your location from the Location list (this is generally Automatic).
6. Select your connection method. If using a wired connection, select Built-in Ethernet. For
wireless, select Airport.
7. Click the Proxies tab.
8. Be sure each proxy in the list is unchecked.
9. Click Apply Now to finish.
Disabling Firewall and Security Software
Disable any firewall or security software that may be running on your computer. For more
information, refer to the documentation for your firewall.
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SMCD3GN2 Wireless Cable Modem User Manual
Accessing the Gateway’s Web Management
After configuring your computer for TCP/IP and performing the pre-configuration guidelines
on the previous page, you can now easily configure the Gateway from the convenient Webbased management interface. From your Web browser (Microsoft Internet Explorer version
5.5 or later), you will log in to the interface to define system parameters, change password
settings, view status windows to monitor network conditions, and control the Gateway and its
ports.
To access your SMCD3GN2 Wireless Cable Modem Gateway’s web-based management
screens, use the following procedure.
1. Launch a Web browser.
Note: The cable modem does not have to be online to configure the Gateway.
Configuring Your Gateway
2. In the browser address bar, type
http://192.168.0.1 and press the Enter key. For example:
The Login User Password screen appears (see Figure 15)
Figure 15. Login User Password Screen
3. In the Login User Password screen, type the default login username cusdamin and the
default password password. Your service provider may customize the login, so please
check with your services provided for correct login information. Both the username and
password are case sensitive.
4. Click the Login button to access the Gateway. The Status page appears, showing
connection status information about the Gateway.
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SMCD3GN2 Wireless Cable Modem User Manual
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