Disabling Firewall and Security Software ... 26 Confirming Your Gateway’s Link Status ... 26 Accessing the Gateway’s Web Management ... 27 Understanding the Web Management Interface Screens ... 28 SMCD3GN Wireless Cable Modem Gateway User Manual ® Macintosh Computer ... 23...
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Using the Reboot Menu to Reboot the Gateway ... 59 Viewing Status Information... 60 Viewing Cable Status Information ... 62 Appendix A - Specifications ... 63 Appendix B - Compliances ... 67 Index ... 68 SMCD3GN Wireless Cable Modem Gateway User Manual Contents...
Preface Congratulations on your purchase of the SMCD3GN Wireless Cable Modem Gateway. The SMCD3GN 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.
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. SMCD3GN Wireless Cable Modem Gateway User Manual Preface...
This document uses the following symbols to draw your attention to certain information. Symbol Meaning Note Warning Electric Shock Hazard SMCD3GN Wireless Cable Modem Gateway User Manual Preface Description Notes emphasize or supplement important points of the main text. Tips provide helpful information, guidelines, or suggestions for performing tasks more effectively.
[ ] square Indicates optional values. brackets { } braces Indicates required or expected values. | vertical bar Indicates that you have a choice between two or more options or arguments. SMCD3GN Wireless Cable Modem Gateway User Manual Preface Description viii...
Before you install your SMCD3GN 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 10) System Requirements (page 10) Front Panel (page 11)
Unpacking Package Contents Unpack the items in your SMCD3GN Wireless Cable Modem Gateway contents and confirm that no items are missing or damaged. Your package should include: One SMCD3GN Wireless Cable Modem Gateway One Power adapter (12V/2A) One Category 5E Ethernet cable One CD that contains this User Manual If any items are missing or damaged, please contact your place of purchase.
Getting to Know Your Gateway Front Panel The front panel of your SMCD3GN Wireless Cable Modem Gateway contains a set of light- emitting diode (LED) indicators. These LEDs show the status of your Gateway and simplify troubleshooting. Figure 1 shows the front panel of the SMCD3GN Wireless Cable Modem Gateway. Table 1 describes the front panel LEDs.
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Green Blue WIFI Green Green SMCD3GN Wireless Cable Modem Gateway User Manual Getting to Know Your Gateway Table 1. Front Panel LEDs Description ON = power is supplied to the Gateway. OFF = power is not supplied to the Gateway.
If no client joins, the LED stops blinking after 4 minutes. Rear Panel The rear panel of your SMCD3GN Wireless Cable Modem Gateway contains a reset button and the ports for attaching the supplied power adapter and making additional connections.
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. SMCD3GN Wireless Cable Modem Gateway User Manual Getting to Know Your Gateway...
This chapter describes how to install your SMCD3GN Wireless Cable Modem Gateway. The topics covered in this chapter are: Finding a Suitable Location (page 16) Connecting to the LAN (page 16) Connecting the WAN (page 17) Powering on the Gateway (page 17)
Finding a Suitable Location Your SMCD3GN 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.
3. If the modem was not installed by your cable provider (ISP) or is replacing another cable modem, contact your cable operator to register the SMCD3GN. If the modem is not registered with your cable operator, it will be unable to connect to the cable network system.
3 Configuring Your Computer for TCP/IP After you install your SMCD3GN Wireless Cable Modem Gateway, configure the TCP/IP settings on a computer that will be used to configure your Gateway. This chapter describes how to configure TCP/IP for various Microsoft Windows and Apple Macintosh operating systems.
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. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Computer for TCP/IP...
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. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Computer for TCP/IP...
(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 SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Computer for TCP/IP...
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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 SMCD3GN Wireless Cable Modem Gateway User Manual...
1. Pull down the Apple Menu, click System Preferences, and select Network. 2. Verify that NIC connected to the SMCD3GN is selected in the Show field. 3. In the Configure field on the TCP/IP tab, select Using DHCP (see Figure 10).
After configuring your computer for TCP/IP using the procedure appropriate for your operating system, use that computer’s Web browser to configure your SMCD3GN Gateway. This chapter describes how to use your Web browser to configure your Gateway. The topics covered in this chapter are: Pre-configuration Guidelines (page 25) Accessing the Gateway’s Web Management (page 27)
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. SMCD3GN Wireless Cable Modem Gateway User Manual...
Confirm that the LINK LED on the Gateway front panel is ON (see Figure 1 on page 11). If the LED is OFF, replace the Ethernet cable connecting your computer and Gateway. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
Netscape Navigator, versions 5.0 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 the SMCD3GN Wireless Cable Modem Gateway’s web-based management screens, use the following procedure. 1. Launch a Web browser.
The top-right side of the page contains a Home button that displays the Home (Status) page and a Logout button for logging out of the Web management interface. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Main Area...
Lets you reboot the Gateway. Status Shows the connection status of your Gateway. This is the same screen that appears when you log in to the Gateway. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description See Page...
Gateway to be configured and managed by remote entities, such as Network Magic or any software application that discovers and manages network devices. Check = HNAP is enabled on the Gateway. Uncheck = HNAP is disabled on the Gateway. (default) SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description...
To access the Password Settings menu, click System in the menu bar and then click the Password Settings submenu. Figure 15 shows an example of the menu and Table 5 describes the settings you can select. Figure 15. Password Settings Menu SMCD3GN Wireless Cable Modem Gateway User Manual...
To access the LAN Settings menu, click LAN in the menu bar. Figure 16 shows an example of the menu and Table 6 describes the settings you can select. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description...
To access the Ether Switch Control menu, click LAN in the menu bar and then click the Ether Switch Control submenu in the menu bar. Figure 17 shows an example of the menu. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description Checked = DHCP server is enabled.
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Under the Mode H/F column, leave the check mark for full-duplex mode or uncheck it for half-duplex mode. 2. To disable a port, regardless of the auto-negotiation and duplex settings, uncheck Enable for the port. 3. Click Apply. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
To disable it, select DISABLE from the Wireless ON/OFF drop-down list. When wireless operation is disabled, the wireless submenus are not displayed in the menu bar. Figure 18. Wireless Basic Settings Menu SMCD3GN Wireless Cable Modem Gateway User Manual...
Note: The Encryption submenu is not available in the menu bar if wireless operation is disabled in the Wireless Basic Settings menu (see page 35). Figure 19. Wireless Encryption Settings Menu SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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WEP and offers two cipher types, TKIP and AES, with dynamic encryption keys. If you select WPA-Personal, select the options in Figure 21 and Table 9. (default) SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description Figure 20.
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A Generate Keys button next to this field lets the Gateway generate a passphrase based on the characters typed in this field. Figure 21. WPA-Personal Options SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Table 8. WEP Options...
Note: The MAC Filtering submenu is not available in the menu bar if wireless operation is disabled in the Wireless Basic Settings menu (see page 35). SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description...
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Enter the name and Media Access Channel (MAC) address of the device of the wireless devices to be Wireless Devices used in your MAC filter table. Click Add to add the device to the Wireless Control List. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description...
Note: The Advanced Wireless Settings submenu is not available in the menu bar if wireless operation is disabled in the Wireless Basic Settings menu (see page 35). Figure 23. Wireless Advanced Settings Menu SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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HT TxStream Select 1 or 2 from the pull-down menu. Default is 2. HT RxStream Select 1 or 2 from the pull-down menu. Default is 2. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description HT Physical Mode...
Port Forwarding Settings menu or Cancel to cancel any selections you made.) 3. Click Apply. The Port Forwarding menu reappears, with the predefined service you configured shown in the Predefined Service Table. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 24. Port Forwarding Settings Menu...
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Delete button. No precautionary message appears before you delete a predefined service. Click Apply in the LAN Settings menu to save your settings. Figure 25. Predefined Service Menu SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
4. To configure additional services (up to 100, including predefined services), repeat steps 1 through 3. When you finish, click Apply in the LAN Settings menu to save your settings. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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Click Apply in the LAN Settings menu to save your settings. Figure 26. Customer Defined Service Menu SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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Enable Port Range. The Gateway automatically calculates the end private port. The LAN PC server listens for traffic/data on this port (or these ports). SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
Figure 27 shows an example of the menu. By default, your Gateway’s firewall settings are enabled. To disable the firewall, uncheck Enable Firewall Mode. Figure 27. Firewall Settings (Security) Menu SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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. SMCD3GN Wireless Cable Modem Gateway User Manual...
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1. In the Special Application menu, check Enable Triggering and click the Apply button. The Trigger Table becomes available. 2. Click the Add button below the table. The Trigger menu appears (see Figure 30). SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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7. To delete a trigger, click the radio button to the left of the trigger you want to delete and click the Delete button. No precautionary message appears before you delete a trigger. Click Apply in the Trigger menu to save your settings. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 30. Trigger Menu...
Blocking submenu. Figure 31 shows an example of the menu. Note: The Gateway provides a Schedule Rules feature that lets you configure URL blocking for certain days, if desired. For more information, see “Configuring Schedule Rules” on page SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Description...
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Keyword/Domain List shows the keyword or domain you entered. Repeat this step for each additional keyword or domain (up to 50) you want to make exempt from URL SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 31. URL Blocking Menu...
2. Specify the time when URL blocking is to start in the Start Time fields and the time when it is to end in the End Time field. Or to enable URL blocking all day, check All Day. 3. Click Apply. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 32. Schedule Rule Menu...
The top area lets you configure the Gateway to send email notifications. The middle area lets you configure the to add syslog entries. The bottom area lets you define the alerting schedule. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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Sender’s Email Address – name that will appear as the sender in the email notifications. 2. Under Mail Server Authentication, enter the following information: – User Name – your email name. – Password – your email password. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
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1. In the Email/Syslog menu, under Syslog Server Configuration, enter the syslog server address. 2. To generate an immediate syslog alert, check Send Syslog in the alert option When intrusion is detected. 3. Click the Apply button. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 34. Recipient Adding Menu...
1. In the DMZ (Demilitarized Zone) menu, check Enable DMZ Host. The 2 rightmost fields next to this option become available. 2. Enter the last two octets in the public IP that is used as the DMZ host's public address. 3. Click Apply. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway...
2. Click OK to reboot the Gateway or click Cancel to not reboot it. If you clicked OK, the reboot is complete when the POWER LED stops blinking. SMCD3GN Wireless Cable Modem Gateway User Manual Configuring Your Gateway Figure 36. Reboot Menu...
Viewing Status Information The Status page is a read-only screen that shows the Gateway’s wired and wireless status. The Status page also provides network, client, and cable modem event log information, with buttons for clearing and refreshing the logs, and releasing IP.
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Configuring Your Gateway Figure 38. Example of Status Page SMCD3GN Wireless Cable Modem Gateway User Manual...
You can also display it by clicking Status in the menu bar and then clicking the Cable Status submenu. Figure 39 shows an example of the cable status information shown. Figure 39. Example of Cable Status Page SMCD3GN Wireless Cable Modem Gateway User Manual...
Ipv6 support coexist Ipv4 Downloadable configuration files allow for easy setup and installation. Universal Plug and Play (UPnP) enabling any UPnP devices seamlessly Quality of Services (QoS) ensures high quality performance SMCD3GN Wireless Cable Modem Gateway User Manual Appendix A - Specifications...
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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 DHCP Client/Server DNS Relay ToD Client SMCD3GN Wireless Cable Modem Gateway User Manual Specifications ICMP FTP/TFTP Telnet...
L x W x H: 26.8 x 15.5 x 3.5 mm (10.6 x 6.1 x 1.4 in) Weight: 0.50kg (1.10 lbs) Input Power 12V/2A Regulatory Certification FCC Part 15B Class B UL/cUL Power Supply Energy Star Rating Level IV SMCD3GN Wireless Cable Modem Gateway User Manual Specifications...
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. SMCD3GN Wireless Cable Modem Gateway User Manual Appendix B - Compliances...
13 Configuring the Gateway access control, 49 auto-negotiation, 33 DHCP, 32 duplex mode, 33 SMCD3GN Wireless Cable Modem Gateway User Manual firewall, 48 idle timeout, 31 login password, 31 port forwarding, 43 private LAN IP address, 32 Connecting...
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Web management, 27 Idle timeout, 31 Installation, 15 Internet Explorer, disabling proxy settings, 25 Key features, vi Keyword blocking, 53 SMCD3GN Wireless Cable Modem Gateway User Manual Index LAN connection, 16 LAN ports enabling or disabling, 33 LAN Settings menu, 32...
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Screens in Web management, 28 Security mode, 36 Security Settings (Firewall) menu, 48 Security software, 26 Security, configuring wireless, 13 Service table SMCD3GN Wireless Cable Modem Gateway User Manual Index customer-defined, 43 predefined, 43 Special Application menu, 50 Special applications, 49 Specifications, 63...
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Security Settings (Firewall) menu, 48 Special Application menu, 50 Status menu, 60 System Settings menu, 30 Trigger menu, 50 SMCD3GN Wireless Cable Modem Gateway User Manual Index URL Blocking menu, 52 URL Email/Syslog Alert menu, 55 Wireless Basic Settings menu, 35...
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