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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. Provide for free air flow around the Wireless Gateway and its power supply. This symbol means that your inoperative electronic appliance must be collected separately and not mixed with the household waste.
Important Information DOCSIS compliant This product was designed according to Data over Cable Service Interface Specifications. Operating Information Operating Temperature: Storage Temperature: -2 C to C to 70 F~ (-4 F ~ 158 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. Attach it here and record the serial and model numbers in case you need them.
List of Figures Chapter 1: Connections and Setup...................................................................................................................... 2 Introduction ......................................................................................................................................................... 2 Wireless Gateway Features.......................................................................................................................... 2 -ROM ...................
List of Figures 2. Connection.............................................................................................................................................. 17 3. Password................................................................................................................................................. 18 4. Diagnostics.............................................................................................................................................. 19 5. Event Log ....
List of Figures 1. Basic........................................................................................................................................................ 38 Wireless .............................................................................................................................................................. 39 1. 802.11/ Radio .......................................................................................................................................... 40 2.
Chapter 1: Connections and Setup Chapter 1: Connections and Setup Introduction Wireless Gateway Features CableLabs DOCSIS 1.0/1.1/2.0/3.0 Standard Compliant 4 x Standard RJ-45 connector for 10/100/1000 BaseT Ethernet with auto-negotiation and MDIX functions; Support maximum Ethernet cable length up to 100m (Category 5) 1 x Master USB connector socket comply to USB2.0 WIFI interface 802.11n; 2,4GHz or 5 GHz with at least 2x2 antennas.
Chapter 1: Connections and Setup DOCSIS is trademarks of Cable Television Laboratories, Inc.
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 WIRELESS GATEWAY that can be used for wall mounting. Note: When wall mounting the unit, ensure that it is within reach of the power outlet. To do this: 1. For THE WIRELESS GATEWAY, ensure that the wall you use is smooth, flat, dry and sturdy and use the 2 screws holes 2.
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 Display the channel bonding status for DS and US b) Between 6 and 10 seconds Note: This is the same as the above Channel Bonding display after the registration c) After 11 seconds Perform the factory reset.
Chapter 1: Connections and Setup The LEDs on the front panel are described in the table below (from left to right): Internet DCW775 Boot-up Operation Ethernet Power ON X USB Wireless ON X X X X X DS US Online 1 2 3 4 ON ON ON ON ON ON X X X FLASH FLASH FLASH Description Power on 0.
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 7 Illustrations contained in this document are for representation only.
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. The IP traffic can transfer between the Wireless Gateway and DOCSIS compliant headend equipment. The data security secures upstream and downstream communications.
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. Keeping your modem plugged in will keep it connected to the Internet. This means that it will always be ready whenever you need.
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. Attaching the Cable TV Wire to the Wireless Gateway 1. Locate the Cable TV wire. You may find it one of three ways: a.
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. Connect one end of the coaxial cable to the cable connection on the wall, and the other end to the CABLE jack on the Wireless Gateway. 2.
Chapter 1: Connections and Setup 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. Fig.3: Multiple-PC Connection Note: You may need to check with your service provider in order to connect multiple computers.
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. Note: All indicators flash once before the initialization sequence.
Chapter 2: WEB Configuration Chapter 2: WEB Configuration To make sure that you can access the Internet successfully, please check the following first. 1. Make sure the Ethernet connection between the Wireless Gateway and your computer is OK. 2. Make sure the TCP/IP protocol is set properly. 3. Subscribe to a Cable Company. Accessing the Web Configuration The Wireless Gateway offers local management capability through a built in HTTP server and a number of diagnostic and configuration web pages.
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.
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. If Network Access have Internet connectivity. If not, you may not have Internet access, and should contact your cable company to resolve this. Fig.
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. Fig. 7 17 Illustrations contained in this document are for representation only.
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 , and the password is admin . The password can be a maximum of 8 characters and is case sensitive. In addition, this page can be used to restore the gateway to its original factory settings. Use this with caution, as all the settings you have made will be lost. To perform this reset, set Restore Factory Defaults to Yes and click Apply.
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; the Result will be displayed in the lower part of the window. Press Abort Test to stop, and Clear Results to clear the result contents.
Chapter 2: WEB Configuration 5. Event Log This page displays the contents of the SNMP event log. Clear Log Fig. 10 6. Switch Mode This page displays switch mode.. Fig. 11 20 Illustrations contained in this document are for representation only.
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 21 Illustrations contained in this document are for representation only.
Chapter 2: WEB Configuration Network 1. LAN You can activate the DHCP server function for the LAN on this page. With this f Address on the LAN page, to your PCs. A DHCP server leases an IP address with an expiration time. To change the lowest IP address that your gateway will issue to your PCs, enter it into the IP Address box and then click Apply. Fig. 13 22 Illustrations contained in this document are for representation only.
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.
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. Fig. 15 24 Illustrations contained in this document are for representation only.
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. Password- The password that you registered with your DDNS provider Host Name- The domain name or host name that is registered with your DDNS provider Status- It shows the DDNS service status whether it is enabled or disabled.
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. 26 Illustrations contained in this document are for representation only.
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 Blo gateway. Ipsec PassThrough enables IpSec type packets to pass WAN security mechanism used in Virtual Private Networks (VPNs). LAN. IpSec (IP Security) is a PPTP PassThrough enables PPTP type packets to pass WAN LAN.
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. NatSip Alg Enable feature enabled by default. While ALG could help in solving NAT related problems in client LAN side.
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. Fig. 19 29 Illustrations contained in this document are for representation only.
Chapter 2: WEB Configuration 4. Port Filtering This page allows you to enter ranges of destination ports (applications) that you do 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). To enable port filtering, set Start Port and End Port for each range, and click Apply.
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. However, sometimes you may wish for anyone outside to be able to originate a connection to a particular PC on your LAN if the destination port (application) matches one you specify.
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.
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 H Fig. 23 33 Illustrations contained in this document are for representation only.
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. routes to these LANs to your cable operator, so packets can be routed properly in this situation. Your cable operator will advise you during installation if any setting changes are required here. Fig. 24 34 Illustrations contained in this document are for representation only.
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. You can activate settings by checking them and clicking Apply.
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. Finally, click the Apply button to save your settings. Fig. 26 36 Illustrations contained in this document are for representation only.
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 direct the email to it. Enable Email Alerts has the gateway forward email notices when Firewall protection events occur. Click E-mail Log to immediately send the email log. Click Clear Log to clear the table of entries for a fresh start.
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. You can activate settings by checking them and clicking Apply.
Chapter 2: WEB Configuration Wireless Important: Changes to the wireless web pages should be made from a PC that is hard wired to the gateway, i.e. via Ethernet. The Wireless web pages group enables a variety of settings that can provide secure and reliable wireless communications for even the most demanding tech-savvy user. The DCW775 gateway offers a choice of 802.
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. 802.11 Band: It can Support 2.4G and 5G. 802.11n mode: It will help you to Enable or Disable the 11N mode.
Chapter 2: WEB Configuration Setting Network Name (SSID) Description Value List or Range Default Set the Network Name (also known as SSID) of this network. Network name format is Model name XX(XX=last 2 digits of the CM MAC) DCW775XX Default subscriber SSID name is device model number followed by the last octet (2 digits) of the CM MAC address using only uppercase alpha-numeric characters with no punctuation.
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. Network Name (SSID): By using this you can change the factory default to a name of your choice up to 32 characters long.
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. And when we Enable the WPS Config then the Closed Network will be Disabled automatically.
Chapter 2: WEB Configuration 802.1x Authentication If you enable the 802.1x authentication function, you will have to offer the following informationRADIUS 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. Please key in the IP Address for the RADIUS Server.
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.
Chapter 2: WEB Configuration WPA-PSK/ WPA2-PSK For the WPA-PSK/WPA2-PSK network Authentication, the settings that you can adjust including WPA/WPA2 Encryption, WPA Pre-Shared Key, and Group key Rotation Interval. WPA Pre-Shared Key: Please type the key to be between 8 and 63 characters, or 64 hexadecimal digits. Only the devices with a matching key that you set here can join this network. WPA/WPA2 Encryption & WPA Group Rekey Interval: Please refer to the WPA/WPA2 part. Fig.
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, WPS Add Client: There are tw But, the default - just skip this step. - you want. PIN then the WPS Add Client option will appear as shown below. Fig. 36 Add WPS Setup AP page will appear as shown in Fig.36 Fig.
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. Fig. 39 PIN: Use this option to set the PIN, enter 4-8 digits PIN of the device you wish to configure. After entering then the WPS Setup AP page will appear as shown in Fig.38 Fig. 40 And WPS Configure Status WPS Configure Status as shown below.
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. Wireless Interface: By default it will be having eed to contact cable operator.
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).
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. Enable WMM: This field allows you to enable WMM to improve multimedia transmission. Enable WMM No-Acknowledgement: This field allows you to enable WMM No-Acknowledgement.
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.
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 functi modem and an intelligent wireless gateway networking device that can provide a host of networking features, such as NAT and firewall.
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 system to the WAN side of your Wireless Cable Gateway.
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 ma destination IP address must also match the IP address of the stack. Each packet that enters a device contains source MAC and IP addresses telling where it came from, and destination MAC and IP addresses telling where it is going to.
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. It uses the MAC address printed on the label attached to the Wireless Cable gateway.
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. It uses the MAC address printed on the label attached to the Wireless Cable Gateway.
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 to/from your PCs. This stack requires an IP address assigned by the cable company from their pool of available addresses.
Chapter 3: Networking CH (CableHome) Mode provides all the functionality of RG mode and adds the ability of the cable company to need to perform the configuration yourself. In this mode, four 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. It uses the MAC address printed on the label attached to the Wireless Cable Gateway.
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.
Chapter 4: Additional information Chapter 4: Additional Information Frequently Asked Questions A. If cable TV is available in your area, data and voice service may be made available with or without cable TV service. Contact your local cable company for complete information on cable services, including high-speed internet access. Q. How do I get the system installed? A. Professional installation from your cable provider is strongly recommended.
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. 62 Illustrations contained in this document are for representation only.
Chapter 4: Additional information General Troubleshooting You can correct most problems you have with your product by consulting the troubleshooting list that follows. Check all connections to your Wireless Gateway. information. The Network Properties of your operating system may not be installed correctly or the settings may be incorrect. Check with your ISP or cable company. abilities be sure to verify that your computer has a properly installed Ethernet card and the driver software to support it.
Chapter 4: Additional Information 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.
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. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
Chapter 4: Additional Information Glossary 10BaseT Unshielded, twisted pair cable with an RJ-45 connector, used with Ethernet LAN (Local Area pair cable. Authentication - The process of verifying the identity of an entity on a network. DHCP (Dynamic Host Control Protocol) addresses to workstations on the fly. A protocol which allows a server to dynamically assign IP Ethernet card A plug-in circuit board installed in an expansion slot of a personal computer.
Chapter 4: Additional information TCP/IP (Transmission Control Protocol/Internet Protocol) A networking protocol that provides communication across interconnected networks, between computers with diverse hardware architectures and various operating systems. TFTP data file is downloaded. Xpress Technology - One of the popular performance-enhancing WiFi technologies, designed to improve wireless network efficiency and boost throughput. It is more efficient in mixed environments, and it can work with 802.
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