THOMSON DCW775 User Manual
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THOMSON DCW775 User Manual

Wireless gateway
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DCW775 - Wireless Gateway
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  • Page 1 CABLE SATELLITE TELECOM TERRESTRIAL DCW775 - Wireless Gateway User manual...
  • Page 2 Chapter 1: Connections and Setup CAUTION CAUTION Disconnect power before To ensure reliable operation and to prevent servicing. overheating, provide adequate ventilation for this modem and keep it away from heat sources. Do not locate near heat registers or other heat-producing equipment.
  • Page 3 Important Information DOCSIS compliant This product was designed according to Data over Cable Service Interface Specifications. Operating Information Operating Temperature: 0˚ C to 40˚ C (32˚ F ~ 104˚ F) Storage Temperature: -20˚ C to 70˚ C (-4˚ F ~ 158˚ F) If you purchased this product at a retail outlet, please read the following: Product Information Keep your sales receipt to obtain warranty parts and service and for proof of purchase.

  • Page 4: Table Of Contents

    What’s on the CD-ROM ..........................2 DOCSIS is trademarks of Cable Television Laboratories, Inc..............3 Computer Requirements..........................3 Wall Mounting ............................. 4 Wireless Gateway DCW775 Overview ........................ 5 Front Panel ..............................5 Rear Panel ..............................7 Side Panel ..............................7 Relationship among the Devices ..........................
  • Page 5 List of Figures 2. Connection .............................. 17 3. Password ..............................18 4. Diagnostics .............................. 19 5. Event Log ............................... 20 6. Switch Mode ............................20 7. Backup/Restore ..........................21 Network................................22 1. LAN ................................ 22 2. WAN ............................... 23 3. Computers .............................. 24 4.
  • Page 6 List of Figures 1. Basic ................................ 38 Wireless ................................39 1. 802.11/ Radio ............................40 2. 802.11/ Primary Network ........................42 3. Access Control ............................49 4. Bridging ..............................50 5. 802.11 QoS (WMM) Settings ......................... 51 Chapter 3: Networking ............................53 Communications ............................

  • Page 7: Chapter 1: Connections And Setup

    Electronic copy of this user’s guide in additional languages (PDF format)  Adobe Acrobat Reader — application you can load to read PDF format, if you don’t have it loaded already  Links to Thomson web site Illustrations contained in this document are for representation only.

  • Page 8: Docsis Is Trademarks Of Cable Television Laboratories, Inc

    Chapter 1: Connections and Setup DOCSIS is trademarks of Cable Television Laboratories, Inc.Computer Requirements For the best possible performance from your Wireless Gateway, your personal computer must meet the following minimum system requirements (note that the minimum requirements may vary by cable companies): IBM PC COMPATIBLE MACINTOSH**...

  • Page 9: Wall Mounting

    Chapter 1: Connections and Setup Wall Mounting Number of screws: 2 pieces. Direction for wall mounting: Tuner downward or leftward or rightward Dimension for the screw: 3.5 mm; length: 10 mm. There are 2 slots on the underside of the that can be used for wall mounting.

  • Page 10: Wireless Gateway Dcw775 Overview

    Chapter 1: Connections and Setup Wireless Gateway DCW775 Overview Front Panel The following illustration shows the front panel of the DCW775: Reset Button behavior a) Push and hold the button between 0 and 5 seconds  Reboot the device b) Between 6 and 10 seconds  Display the channel bonding status for DS and US Note: This is the same as the above Channel Bonding display after the registration c) After 11 seconds ...
  • Page 11 Chapter 1: Connections and Setup The LEDs on the front panel are described in the table below (from left to right): Internet Ethernet DCW775 Power Wireless Description Online Power on 0.25 sec Boot-up Operation From power ON to system initialization...

  • Page 12: Rear Panel

    Chapter 1: Connections and Setup Rear Panel 4 x GIGA ETHERNET: Ethernet 10/100/1000BaseT RJ-45 connector  USB : USB 2.0 host connector  RESET: Reset CM  CABLE: F-Connector  12VDC: DC power socket  Side Panel 1 x WPS button with LED ...

  • Page 13: Relationship Among The Devices

    Chapter 1: Connections and Setup Relationship among the Devices What the Modem Does The Wireless Gateway provides high-speed Internet access as well as cost-effective fax/modem services over residential, commercial, and education subscribers on public and private networks via an existing CATV infrastructure.
  • Page 14 Chapter 1: Connections and Setup Please verify the following with the cable company  The cable service to your home supports DOCSIS compliant two-way modem access.  You have a cable outlet near your PC and it is ready for Cable Modem service. Note: It is important to supply power to the modem at all times.

  • Page 15: Connecting The Wireless Gateway To A Single Computer

    Chapter 1: Connections and Setup Connecting the Wireless Gateway to a Single Computer This section of the manual explains how to connect your Wireless Gateway to the Ethernet port on your computer and install the necessary software. Please refer to Figure 1 to help you connect your Digital Cable Modem for the best possible connection.

  • Page 16: Important Connection Information

    Chapter 1: Connections and Setup Important Connection Information The Wireless Gateway supports 4 Ethernet connections simultaneously. Below are important points to remember before you connect the Wireless Gateway. Ethernet Connection to a Computer Make the connection to the modem in the following sequence: 1.

  • Page 17: Connecting More Than One Computer To The Wireless Gateway

    Connecting More Than One Computer to the Wireless Gateway If you need to connect more than one computer to DCW775, simply connect the computers to the Ethernet ports on the rear panel. You may also use a hub with an crossover Ethernet cable to connect more than 4 computer to the Wireless Gateway.

  • Page 18: Turning On The Wireless Gateway

    Chapter 1: Connections and Setup Turning on the Wireless Gateway After installing the Wireless Gateway and turn it on for the first time (and each time the modem is reconnected to the power), it goes through several steps before it can be used. Each of these steps is represented by a different pattern of flashing lights on the front of the modem.

  • Page 19: Chapter 2: Web Configuration

    Chapter 2: WEB Configuration Chapter 2: WEB Configuration To make sure that you can access the Internet successfully, please check the following first. Make sure the Ethernet connection between the Wireless Gateway and your computer is OK. Make sure the TCP/IP protocol is set properly. Subscribe to a Cable Company.

  • Page 20: Outline Of Web Manager

    Chapter 2: WEB Configuration Outline of Web Manager The main screen will be shown as below. Fig. 5  Main Menu: the hyperlinks on the top of the page.  Title: the sidebar on the left side of the page indicates the title of this management interface, e.g., Software in this example ...
  • Page 21 Chapter 2: WEB Configuration Status 1. Software The information section shows the hardware and software information about your gateway. The status section of this page shows how long your gateway has operated since last time being powered up, and some key information the Cable Modem received during the initialization process with your cable company.
  • Page 22 Chapter 2: WEB Configuration 2. Connection This page reports current connection status containing startup procedures, downstream and upstream status, CM online information, and so on. The information can be useful to your cable company’s support technician if you’re having problems. Fig.
  • Page 23 Chapter 2: WEB Configuration 3. Password This page is used to change the password that enables you to access the gateway web pages next time. The default User ID is “ ”(EMPTY), and the password is ―admin”. The password can be a maximum of 8 characters and is case sensitive.
  • Page 24 Chapter 2: WEB Configuration 4. Diagnostics This page offers basic diagnostic tools for you to utilize when connectivity problems occur. When you ping an Internet device, you send a packet to its TCP/IP stack, and it sends one back to yours. To use the ping Test, enter the information needed and press Start Test;...

  • Page 25: Event Log

    Chapter 2: WEB Configuration 5. Event Log This page displays the contents of the SNMP event log. Press ―Clear Log‖ button to clear the logs. Fig. 10 6. Switch Mode This page displays switch mode.. Fig. 11 Illustrations contained in this document are for representation only.

  • Page 26: Backup/Restore

    Chapter 2: WEB Configuration 7. Backup/Restore This page allows you to save your current settings locally on your PC, or restore settings previously saved. Fig. 12 Illustrations contained in this document are for representation only.
  • Page 27 Chapter 2: WEB Configuration Network 1. LAN You can activate the DHCP server function for the LAN on this page. With this function activated, your cable company’s DHCP server provides one IP address for your gateway, and your gateway’s DHCP server provides IP addresses, starting at the address you set in IP Address on the LAN page, to your PCs.
  • Page 28 Chapter 2: WEB Configuration 2. WAN You can configure the optional internal DHCP server for the WAN on this page. Select different WAN Connection Type will lead to different contents. Take the WAN connection type-DHCP for example, you can release and renew the WAN lease by pressing the buttons. You can enter a spoofed MAC address that causes your gateway networking stack to use that MAC address when communicating instead of the usual WAN MAC address, e.g., if the MAC address is 00:11:e3:df:66:95, this spoofed MAC address could be 00:11:e3:df:66:97 or any desired MAC address.
  • Page 29 Chapter 2: WEB Configuration 3. Computers This page displays the status of the DHCP clients and current system time. You can cancel an IP address lease by selecting it in the DHCP Client Lease Info list and then clicking the Force Available button. If you do so, you may have to perform a DHCP Renew on that PC, so that it can obtain a new lease.
  • Page 30 Chapter 2: WEB Configuration 4. DDNS This page allows setup of Dynamic DNS service. Fig. 16  DDNS Service- Choose Enabled ( www.DynDNS.org ) to enable the basic setting. Choose Disabled to close the basic setting.  Username- The username that you registered with your DDNS provider. ...
  • Page 31 Chapter 2: WEB Configuration 5. Time This page allows configuration and display of the system time obtained from network servers via Simple Network Time Protocol. The system has to be reset for any changes to take effect. Illustrations contained in this document are for representation only.
  • Page 32 Chapter 2: WEB Configuration Advanced 1. Options This page allows you to enable/disable some features of the Wireless Gateway. Fig. 17  WAN Blocking prevents others on the WAN side from being able to ping your gateway. With WAN Blocking enabled, your gateway will not respond to pings it receives, effectively ―hiding‖ your gateway.

  • Page 33: Ip Filtering

    Chapter 2: WEB Configuration  UPnP Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access the network and connect to other devices as needed. UPnP devices can automatically discover the services from other registered UPnP devices on the network. ...

  • Page 34: Mac Filtering

    Chapter 2: WEB Configuration 3. MAC Filtering This page enables you to enter the MAC address of specific PCs on your LAN that you wish to NOT have outbound access to the WAN. As with IP filtering, these PCs can still communicate with each other through the gateway, but packets they send to WAN addresses are blocked.

  • Page 35: Port Filtering

    Chapter 2: WEB Configuration 4. Port Filtering This page allows you to enter ranges of destination ports (applications) that you don’t want your LAN PCs to send packets to. Any packets your LAN PCs send to these destination ports will be blocked. For example, you could block access to worldwide web browsing (http = port 80) but still allow email service (SMTP port 25 and POP-3 port 110).
  • Page 36 Chapter 2: WEB Configuration 5. Forwarding For LAN  WAN communications, the gateway normally only allows you to originate an IP connection with a PC on the WAN; it will ignore attempts of the WAN PC to originate a connection onto your PC. This protects you from malicious attacks from outsiders.

  • Page 37: Port Triggers

    Chapter 2: WEB Configuration 6. Port Triggers Some Internet activities, such as interactive gaming, require that a PC on the WAN side of your gateway be able to originate connections during the game with your game playing PC on the LAN side. You could use the Advanced-Forwarding web page to construct a forwarding rule during the game, and then remove it afterwards (to restore full protection to your LAN PC) to facilitate this.

  • Page 38: Dmz Host

    Chapter 2: WEB Configuration 7. DMZ Host Use this page to designate one PC on your LAN that should be left accessible to all PCs from the WAN side, for all ports. For example, if you put an HTTP server on this machine, anyone will be able to access that HTTP server by using your gateway IP address as the destination.

  • Page 39: Rip (Routing Information Protocol) Setup

    Chapter 2: WEB Configuration 8. RIP (Routing Information Protocol) Setup This feature enables the gateway to be used in small business situations where more than one LAN (local area network) is installed. The RIP protocol provides the gateway a means to ―advertise‖ available IP routes to these LANs to your cable operator, so packets can be routed properly in this situation.

  • Page 40: Web Filtering

    Chapter 2: WEB Configuration Firewall 1. Web Filtering These pages allow you to enable, disable, and configure a variety of firewall features associated with web browsing, which uses the HTTP protocol and transports HTML web pages. On these pages, you designate the gateway packet types you want to have forwarded or blocked.

  • Page 41: Tod Filtering

    Chapter 2: WEB Configuration 2. TOD Filtering Use this page to set rules that will block specific LAN side PCs from accessing the Internet, but only at specific days and times. Specify a PC by its hardware MAC address, and then use the tools to specify blocking time.

  • Page 42: Local Log And Remote Log

    Chapter 2: WEB Configuration 3. Local Log and Remote Log The gateway builds a log of firewall blocking actions that Firewall has taken. Using the Local Log page lets you specify an email address to which you want the gateway to email this log. You must also tell the gateway your outgoing (i.e.

  • Page 43: Parental Control

    Chapter 2: WEB Configuration Parental Control 1. Basic This page allows you to enable, disable, and configure a variety of firewall features associated with web browsing, which uses the HTTP protocol and transports HTML web pages. On these pages, you designate the gateway packet types you want to have forwarded or blocked.
  • Page 44 The DCW775 gateway offers a choice of 802.1x, WPA and WPA-PSK authentication of your PCs to the gateway, 64 and 128 bit WEP encryption of communication between the gateway and your PCs to guaranty security, and an Access Control List function that enables you to restrict wireless access to only your specific PCs.

  • Page 45: 11/ Radio

    Chapter 2: WEB Configuration 1. 802.11/ Radio To set the basic configuration for the wireless features, please click Radio item from the Wireless menu. Fig. 30  Interface: Enable by default  Wireless MAC Address: The MAC address for this wireless device will be displayed in this field automatically.
  • Page 46 Chapter 2: WEB Configuration Setting Description Value List or Range Default Set the Network Name (also Network name format is Model DCW775XX Network Name (SSID) known as SSID) of this name XX(XX=last 2 digits of network. the CM MAC)  Default subscriber SSID name is device model...

  • Page 47: 11/ Primary Network

    Chapter 2: WEB Configuration 2. 802.11/ Primary Network This page allows you to configure the Network Authentication. It provides several different modes of wireless security. You will have to enter proper information according to the mode you select. Fig. 31 Primary Network: Used to Enable or Disable the whole Primary Network feature.
  • Page 48 Chapter 2: WEB Configuration the area. The benefit of using Enable is it can speed your WiFi setup on some PCs. If you set Closed Network to Disable, your SSID is not included in the beacon. This hides your network name (SSID), but as a result may require a bit more effort on your part to set up your wireless PCs.
  • Page 49 Chapter 2: WEB Configuration 802.1x Authentication If you enable the 802.1x authentication function, you will have to offer the following information-  RADIUS Server: RADIUS Server is a protocol for carrying authentication, authorization, and configuration information between a Network Access Server which desires to authenticate its links and a shared Authentication Server.
  • Page 50 Chapter 2: WEB Configuration WPA/WPA2 For the WPA/WPA2 network Authentication, the settings that you can adjust including WPA/WPA2 Encryption, RADIUS Server, RADIUS Port, RADIUS Key, Group Key Rotation Interval, and WPA/WPA2 Re-auth Interval.  WPA/WPA2 Encryption: There are three types that you can choose, TKIP*, AES**, TKIP+AES. TKIP takes the original master key only as a starting point and derives its encryption keys mathematically from this mater key.
  • Page 51 WiFi Protected Setup (WPS) is an easy and secure way of configuring and connecting your WiFi access point. In your case, the DCW775 is the Access Point (AP), and Your PC (or Wifi Device) is called the STA. When configuring your Wifi Network via WPS, Messages are exchanged between the STA and AP in order to configure the Security Settings on both devices.
  • Page 52 Chapter 2: WEB Configuration will show its configuration status.  Device Name: By using this you can change the factory default to a name of your choice which is up to 32 characters long as like SSID.  WPS Setup AP: Here you do not need to change anything, just skip this step. ...
  • Page 53 Chapter 2: WEB Configuration If you select WPS Method to PIN then it will ask for PIN while configuring the WiFi AP by showing a text box so, you need to enter PIN to establish the connection. You can get the PIN from your connected Wi-Fi client.

  • Page 54: Access Control

    Chapter 2: WEB Configuration 3. Access Control This page allows you to make access control to the AP (Access Point) or connected clients by offering the MAC Addresses of the clients. Fig. 42 Administration Web page Access: It Allow or Deny access to Administration Web Page from PC connected over WiFi.
  • Page 55 Chapter 2: WEB Configuration 4. Bridging The Bridging page provides a location where settings can be adjusted related to the WDS (Wireless Distribution System) feature. WDS is a system that enables the interconnection of access points wirelessly. It may also be referred to as repeater mode because it appears to bridge and accept wireless clients at the same time (unlike traditional bridging).

  • Page 56: Qos (Wmm) Settings

    Chapter 2: WEB Configuration 5. 802.11 QoS (WMM) Settings Wi-Fi Multimedia (WMM) is a component of the IEEE 802.11e wireless LAN standard for quality of service (QoS). The QoS assigns priority to the selected network traffic and prevents packet collisions and delays thus improving VoIP calls and watching video over WLANs.
  • Page 57 Chapter 2: WEB Configuration EDCA AP Parameters: The parameters for Access Point (AP) of EDCA (enhanced distributed channel access). EDCA STA Parameters: The parameters for WIFI station of EDCA. CWmin: This attribute shall specify the value of the minimum size of the window that shall be used by a QAP for a particular AC for generating a random number for the backoff.

  • Page 58: Chapter 3: Networking

    Chapter 3: Networking Chapter 3: Networking Communications Data communication involves the flow of packets of data from one device to another. These devices include personal computers, Ethernet, cable modems, digital routers and switches, and highly integrated devices that combine functions, like the Wireless Cable Gateway. The gateway integrates the functionality often found in two separate devices into one.

  • Page 59: Cable Modem (Cm) Section

    Chapter 3: Networking Example: The Wireless Cable Gateway offers a number of built-in web pages which you can use to configure its networking side; when you communicate with the networking side, your communication is following this path. Each packet on the Internet addressed to a PC in your home travels from the Internet down- stream on the cable company’s system to the WAN side of your Wireless Cable Gateway.

  • Page 60: Three Networking Modes

    Chapter 3: Networking When a packet enters a network interface, it is offered to all the TCP/IP stacks associated with the device side from which it entered. But only one stack can accept it — a stack whose configured Ethernet address matches the Ethernet destination address inside the packet.
  • Page 61 Chapter 3: Networking Fig. 47 CM (Cable Modem) Mode provides basic home networking. In this mode, two IP stacks are active:  IP Stack 1 - for use by the cable company to communicate with the cable modem section only. This stack receives its IP address from the cable company during CM initialization.

  • Page 62: Residential Gateway (Rg) Mode

    Chapter 3: Networking Residential Gateway (RG) Mode Fig. 48 Fig. 49 RG (Residential Gateway) Mode provides basic home networking plus NAT (Network Address Translation). In this mode, three IP stacks are active:  IP Stack 1 - for use by the cable company to communicate with the Cable Modem section only. This stack receives its IP address from the cable company during CM initialization.

  • Page 63: Cablehome (Ch) Mode

    Chapter 3: Networking  IP Stack 3 - for use by you to remotely (i.e. from somewhere on the WAN side, such as at your remote workplace) communicate with the Cable Modem and Networking sections, to remotely access the internal web page diagnostics and configuration. This stack is also used by your cable company to deliver packets between the Internet and the gateway’s networking section so they can be routed to/from your PCs.
  • Page 64 Chapter 3: Networking CH (CableHome) Mode provides all the functionality of RG mode and adds the ability of the cable company to control the home networking configuration of your Wireless Cable Gateway for you, so you don’t need to perform the configuration yourself.

  • Page 65: Network

    Chapter 3: Networking MAC and IP Addresses Summary This table summarizes all the MAC and IP addresses that may be associated with the TCP/IP communication stacks in your Wireless Cable Gateway. The ones actually used depend upon your gateway Operating Mode, as explained above. At minimum, your cable company will need to know the MAC address associated with IP Stack 1, which is the MAC address shown on the modem label.

  • Page 66: Chapter 4: Additional Information

    Chapter 4: Additional information Chapter 4: Additional Information Frequently Asked Questions Q. What if I don’t subscribe to cable TV? A. If cable TV is available in your area, data and voice service may be made available with or without cable TV service.
  • Page 67 Chapter 4: Additional Information packets, so that more useful data can be sent during a given amount of time. * Monthly subscription fee applies. Additional equipment required. Contact your cable company and ISP for any restrictions or additional fees. Illustrations contained in this document are for representation only.

  • Page 68: General Troubleshooting

    Chapter 4: Additional information General Troubleshooting You can correct most problems you have with your product by consulting the troubleshooting list that follows. I can’t access the internet.  Check all connections to your Wireless Gateway.  Your Ethernet card may not be working. Check each product’s documentation for more information.

  • Page 69: Fcc Declaration Of Conformity And Industry Canada Information

    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. Trade Name: Model: DCW775 Equipment Classification: Computing Device Accessory Responsible Party: Thomson Inc.

  • Page 70: Service Information

    Chapter 4: Additional information For operation within 5.15 ~ 5.25GHz frequency range, it is restricted to indoor environment. 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.
  • Page 71 Chapter 4: Additional Information Glossary 10BaseT – Unshielded, twisted pair cable with an RJ-45 connector, used with Ethernet LAN (Local Area Network). ―10‖ indicates speed (10 Mbps), ―Base‖ refers to baseband technology, and ―T‖ means twisted pair cable. Authentication - The process of verifying the identity of an entity on a network. DHCP (Dynamic Host Control Protocol) –...
  • Page 72 802.11a/b/g networks. Please do not send any products to the Indianapolis address listed in this manual or on the carton. This will only add delays in service for your product. Thomson Inc. 101 W 103rd Street Indianapolis, IN 46290...
  • Page 73 46, quai Alphonse Le Gallo 92100 Boulogne-Billancourt France Tel. : 33 (0) 1 41 86 50 00 Fax : 33 (0) 1 41 86 56 59 www.thomson-broadband.com © 2007 Thomson Inc.- Trademark(s) ® Registered\ -Marca(s) Registada(s)\ Photos and features subject to change without notice.

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