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Comet Labs NRM42 User Manual

Adsl2+ modem/router
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ADSL2+ Modem/Router
Model-nr. NRM42
User's Manual
English version

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  • Page 1 ADSL2+ Modem/Router Model-nr. NRM42 User’s Manual English version...

  • Page 2: Table Of Contents

    Chapter 1...1 1.1 Introducing the ADSL2+ Router...1 1.2 Features of the ADSL2+ Router...3 Chapter 2...6 2.1 Important note for using the ADSL2+ Router ...6 2.2 Package Contents...6 2.3 The Front LEDs...7 2.4 The Rear Ports ...8 2.5 Cabling...9 Chapter 3...10 3.1 Before Configuration...

  • Page 3: Chapter 1

    Welcome to the ADSL2+ Router. Your router is an “all-in-one” unit, combining an ADSL modem, ADSL router and Ethernet network switch, providing everything you need to get the machines on your network connected to the Internet over your ADSL broadband connection.
  • Page 4 the services that outside users can access. For example, to ensure that games and other Internet applications will run properly, user can open some specific ports for outside users to access internal services in network. DHCP services (Dynamic Host Control Protocol), client and server, allow multiple users to get their IP addresses automatically on boot up from the product.

  • Page 5: Features Of The Adsl2+ Router

    1.2 Features of the ADSL2+ Router ADSL Multi-Mode Standard supports downstream rates of up to 24 Mbps and upstream rates of up to 1 Mbps. It also supports rate management that allows ADSL subscribers to select an Internet access speed suiting their needs and budgets. It is compliant with Multi-Mode standard (ANSI T1.413, Issue 2;...
  • Page 6 (ALG) are supported such as web browser, ICQ, FTP, Telnet, E-mail, News, Net2phone, Ping, NetMeeting, IP phone and others. Firewall Supports simple firewall with NAT technology and provides option for blocking access from Internet, like Telnet, FTP, TFTP, WEB, SNMP and IGMP. Domain Name System (DNS) relay Provides an easy way to map the domain name (a friendly name for users such as www.yahoo.com) and IP address.
  • Page 7 client IP addresses and distribute them including IP address, subne t mask as well as DNS IP address to local computers. It provides an easy way to manage the local IP network. RIP1/2 Routing Supports RIP1/2 routing protocol for routing capability. Simple Network Management Protocol (SNMP) It is an easy way to remotely manage the router via SNMP.

  • Page 8: Chapter 2

    2.2 Package Contents ADSL2+ Router CD-ROM containing the online manual RJ-11 ADSL/telephone Cable (1.8M) Ethernet (CAT-5 LAN) Cable (2M Straight) AC-AC power adapter (9V AC, 1A) : for ADSL2+ Modem/Router Quick Start Guide (105*150*mm) Installing the ADSL2+ Router Chapter 2...

  • Page 9: The Front Leds

    2.3 The Front LEDs ADSL2+ Router with 4-port Switch 802.11g ADSL2+ Router model PPP : ADSL: LAN Port 1-4: WLAN: (Wireless model only) SYS : PWR : Meaning Lit steady when there is a PPPoA / PPPoE connection. Lit when successfully connected to an ADSL DSLAM (“linesync”).

  • Page 10: The Rear Ports

    2.4 The Rear Ports ADSL2+ Router with 4-port Switch 802.11g ADSL2+ Router model Port RESET ADSL (LINE) Power Switch Connect the supplied power adapter to this jack. After the device is powered on, press it to reset the device or restore to factory default settings.

  • Page 11: Cabling

    2.5 Cabling One of the most common causes of problems is bad cabling or ADSL line(s). Make sure that all connected devices are turned on. On the front of the product is a bank of LEDs. Verify that the LAN Link and ADSL line LEDs are lit. If they are not, verify that you are using the proper cables.

  • Page 12: Before Configuration

    If not, please refer to your Windows -related or other operating system manuals. Any TCP/IP capable workstation can be used to communicate with or through the NRM42 model. To configure other types of workstations, please consult the manufacturer’s documentation. Chapter 3...

  • Page 13: Configuring Pc In Windows Xp

    Configuring PC in Windows XP 1. Go to Start / Control Panel (in Classic View). In the Control Panel, double-click on Network Connections 2. Double-click Local Area Connection. 3. In the Local Area Connection Status window, click Properties. 4. Select Internet Protocol (TCP/IP) and click Properties.

  • Page 14: Configuring Pc In Windows

    Configuring PC in Windows 2000 1. Go to Start / Settings / Control Panel. In the Control Panel, double-click on Network and Dial-up Connections. 2. Double-click Local Area Connection. 3. In the Local Area Connection Status window click Properties. 4. Select Internet Protocol (TCP/IP) and click Properties.

  • Page 15: Configuring Pc In Windows 98/Me

    Configuring PC in Windows 98/Me 1.Go to Start / Settings / Control Panel. In the Control Panel, double-click on Network and choose the Configuration tab. 2.Select TCP/IP ->NE2000 Compatible, or the name of your Network Interface Card (NIC) in your PC. 3.Select the Obtain an IP address automatically radio button.
  • Page 16 Configuring PC in Windows NT4.0 1. Go to Start / Settings / Control Panel. In the Control Panel, double-click on Network and choose the Protocols tab. 2.Select TCP/IP Protocol and click Properties. 3.Select the Obtain an IP address from a DHCP server radio button and click OK.

  • Page 17: Factory Default Settings

    3.2 Factory Default Settings Before configuring your, you need to know the following default settings. Web Interface: Username: admin Password: password LAN Device IP Settings: IP Address: 192.168.0.1 Subnet Mask: 255.255.255.0 ISP setting in WAN site: PPPoE DHCP server: DHCP server is enabled. Start IP Address: 192.168.0.100 IP pool counts: 100 3.2.1 Username and Password...

  • Page 18: Lan And Wan Port Addresses

    3.3 LAN and WAN Port Addresses The parameters of LAN and WAN ports are pre-set in the factory. The default values are shown below. IP address Subnet Mask DHCP server function IP addresses for distribution to PCs 3.4 Information from your ISP Before configuring this device, you have to check with your ISP (Internet Service Provider) what kind of service is provided such as PPPoE, PPPoA, RFC1483, or IPoA.

  • Page 19: Configuring With Your Web Browser

    3.5 Configuring with your Web Browser Open your web browser, enter the IP address of your router, which by default is 192.168.0.1 , and click “Go”, a user name and password window prompt will appear. The default username and password are “admin” and “password”. Congratulation! You are now successfully logon to the ADSL2+ Router!

  • Page 20: Chapter 4

    At the configuration homepage, the left navigation pane where bookmarks are provided links you directly to the desired setup page, including: Quick Start (wizard setup) Interface Setup (Internet, LAN, Wireless) Advanced Setup (Routing, NAT, ADSL) Access Management (ACL, IP Filter, SNMP, UPnP, DDNS) Maintenance (Administration, Time Zone, Firmware, SysRestart, Diagnostics) Status Please see the relevant sections of this manual for detailed instructions on how to configure...

  • Page 21: Quick Start

    4.1 Quick Start For detailed instructions on configuring WAN settings, see the Interface Setup section of this manual. The information you need for the Quick Start to get you online are your login (often in the form of username@ispname), your password, and the encapsulation type. Your ISP can supply all the details you need.
  • Page 22 Step1. Set your new password.
  • Page 23 Step2: Choose your time zone Step3: Set your Internet connection...
  • Page 25 Step4: Restart your ADSL Router...

  • Page 26: Interface Setup

    4.2 Interface Setup Click this item to access the following sub -items that configure the ADSL router: Internet, LAN, and Wireless These functions are described in the following sections.
  • Page 27 4.2.1 Internet ATM VC Virtual Circuit: VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) define a virtual circuit. VPI: The valid range for the VPI is 0 to 255. Enter the VPI assigned to you. This field may already be configured.
  • Page 28 VCI: The valid range for the VCI is 32 to 65535. Enter the VCI assigned to you. This field may already be configured. ATM QoS: Select CBR to specify fixed (always-on) bandwidth for voice or data traffic. Select UBR for applications that are non-time sensitive, such as e -mail. Select VBR for burst traffic and bandwidth sharing with other applications.
  • Page 29 Dynamic Route: RIP Version: Select the RIP version from RIP-1, RIP -2B and RIP-2M. RIP Direction: Select the RIP direction from None, Both, In Only and Out Only. Multicast: IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish membership in a Multicast group - it is not used to carry user data.
  • Page 30 4.2.2 LAN A Local Area Network (LAN) is a shared communication system to which many computers are attached and is limited to the immediate area, usually the same building or floor of a building. Router Local IP IP Address: Enter the IP address of ADSL Router in dotted decimal notation, for example, 192.168.0.1 (factory default).
  • Page 31 If set to Enable, your router can assign IP addresses, an IP default gateway and DNS servers to Windows 95, Windows NT and other systems that support the DHCP client. If set to disabled, the DHCP server will be disabled. If set to Relay, the router acts as a surrogate DHCP server and relays DHCP requests and responses between the remote server and the clients.
  • Page 32 4.2.3 for Wireless ADSL2+ Modem/router model only. This section introduces the wireless LAN and some basic configurations. Wireless LANs can be as simple as two computers with wireless LAN cards communicating in a peer-to-peer network or as complex as a number of computers with wireless LAN cards communicating through access points which bridge network traffic to the wired LAN.
  • Page 33 which is already built-in to the router’s wireless interface. It is case sensitive and must not excess 32 characters. Make sure your wireless clients have exactly the SSID as the device, in order to get connected to your network. Broadcast SSID: Select Yes to hide the SSID in so a station cannot obtain the SSID through passive scanning.
  • Page 34 Association). Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned at the factory and consists of six pairs of hexadecimal characte rs, for example, 00:AA:BB:00:00:02. You need to know the MAC address of the devices to configure this screen.

  • Page 35: Advanced Setup

    Encryption: TKIP (Temporal Key Integrity Protocol) uti lizes a stronger encryption method and incorporates Message Integrity Code (MIC) to provide protection against hackers. Pre-Shared key: The key for network authentication. The input format is in character style and key size should be in the range between 8 and 64 characters. 4.3 Advanced Setup 4.3.1 Routing If you have another router with a LAN-to-LAN connection, you may create a static routing on...
  • Page 36 the router that is the gateway to Internet. #: Item number Dest IP: IP address of the destination network Mask: The destination mask address. Gateway IP: IP address of the gateway or existing interface that this route uses. Metric: It represents the cost of transmission for routing purposes. The number need not be precise, but it must be between 1 and 15.
  • Page 37 Metric: It represents the cost of transmission for routing purposes. The number need not be precise, but it must be between 1 and 15. Announced in RIP: This parameter determines if the Prestige will include the route to the remote node in its RIP broadcasts. Set “Yes”, it is kept private and is not included in RIP broadcasts.
  • Page 38 traffic is routed to appropriate WAN connections based on the destination IP addresses and Route Table. This eliminates the need for the static NAT session configuration between multiple LAN clients and multiple WAN connections. Virtual Circuit: VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) define a virtual circuit.
  • Page 39 button is checked. Be aware that this IP will be exposed to the WAN/Internet. Select the Apply button to apply your changes. Virtual Server In TCP/IP and UDP networks a port is a 16-bit number used to identify which application program (usually a server) incoming connections should be delivered to.
  • Page 40 Rule Index: Choose the rule number. Start Port Number: Enter a port number in this field. End Port Number: Enter a port number in this field. Local IP Address: Enter your server IP address in this field. IP Address Mapping...
  • Page 41 Rule Index: Choose the rule number. Rule Type: One-to-one: This is the mode maps one local IP address to one global IP address. Note that port numbers do not change for the One-to-one NAT mapping type. Many-to-One: This is the mode maps multiple local IP addresses to one global IP address. This is equivalent to Many to One (i.e., PAT, port address translation).
  • Page 42 One-to-one, Many-to-One and Server mapping types. Using port forwarding does have security implications, as outside users will be able to connect to PCs on your network. For this reason you are advised to use specific Virtual Server entries just for the ports your application requires, instead of using DMZ.
  • Page 43 4.3.3 ADSL ADSL Mode: The default setting is Auto Sync-UP. This mode will automatically detect your ADSL, ADSL2+, ADSL2, G.dmt, G.lite, and T1.413. But in some area, multimode cannot detect the ADSL line code well. If it is the case, please adjust the ADSL line code to G.dmt or T1.413 first.

  • Page 44: Access Management

    4.4 Access Management 4.4.1 ACL Access Control Listing allows you to determine which services/protocols can access which router interface from which computers. You can configure the router for remote Telnet access or upload and download router firmware and configuration files using FTP. To use this feature, your computer must have an FTP client.
  • Page 45 4.4.2 IP Filter You may use telnet or Web to remotely manage the ADSL Router. User just needs to enable Telnet or Web and give it an IP address that wants to access the ADSL Router. The default IP 0.0.0.0 allows any client to use this service to remotely manage the ADSL Router. IP Filter Set Editing IP filter Set Index: This is item number Interface: Select which channel (PVC) to configure.
  • Page 46 Source IP Address: The source IP address or range of packets to be monitored. Subnet Mask: It is the destination IP addresses based on above destination subnet IP Source Port Number: This Port or Port Ranges defines the port allowed to be used by the Remote/WAN to connect to the application.
  • Page 47 4.4.3 SNMP Simple Network Management Protocol (SNMP) is a protocol used for exchanging management information between network devices. SNMP is a member of the TCP/IP protocol suite. router supports SNMP agent functionality which allows a manager station to manage and monitor the router through the network. Get Community: Type the Get Community, which is the password for the incoming Get-and GetNext requests from the management station.
  • Page 48 4.4.4 UPnP UPnP offers peer-to-peer network connectivity for PCs and other network devices, along with control and data transfer between devices. UPnP offers many advantages for users running NAT routers through UPnP NAT Traversal, and on supported systems makes tasks such as port forwarding much easier by letting the application control the required settings, removing the need for the user to control advanced configuration of their device.
  • Page 49 4.4.5 DDNS The Dynamic DNS function allows you to alias a dynamic IP address to a static hostname, allowing users whose ISP does not assign them a static IP address to use a domain name. This is especially useful for hosting servers via your ADSL connection, so that anyone wishing to connect to you may use your domain name, rather than having to use your dynamic IP address, which changes from time to time.

  • Page 50: Maintenance

    4.5 Maintenance 4.5.1 Administrator In factory setting, the default password is password, and that for user is also password. You can change the default password to ensure that someone cannot adjust your settings without your permission. Every time you change your password, please record the password and keep it at a safe place.

  • Page 51: Time Zone

    4.5.2 Time Zone The router does not have a real time clock on board; instead, it uses the Simple Network Time Protocol (SNTP) to get the current time from an SNTP server outside your network. Choose your local time zone. After a successful connection to the Internet, the router will retrieve the correct local time from the SNTP server you have specified.
  • Page 52 4.5.3 Firmware Your router’s “firmware” is the software that allows it to operate and provides all its functionality. Think of your router as a dedicated computer, and the firmware as the software it runs. Over time this software may be improved and modified, and your router allows you to upgrade the software it runs to take advantage of these changes.
  • Page 53 4.5.4 SysRestart Click SysRestart with option Current Settings to reboot your router (and restore your last saved configuration). If you wish to restart the router using the factory default settings (for example, after a firmware upgrade or if you have saved an incorrect configuration), select Factory Default Settings to reset to factory default settings.
  • Page 54 4.5.6 Diagnostics The Diagnostic Test page shows the test results for the connectivity of the physical layer and protocol layer for both LAN and WAN sides...

  • Page 55: Status

    4.6 Status 4.6.1 Device Info Device Information Firmware version: This is the Firmware version MAC Address: This is the MAC Address IP Address: LAN port IP address. Sub Net Mask: LAN port IP subnet mask. DHCP Server: LAN port DHCP role - Enabled, Relay or disabled Status: “Not connected”...
  • Page 56 Virtual Circuit: There are eight groups of PVC can be defined. VPI: The valid range for the VPI is 0 to 255 VCI: The valid range for the VCI is 32 to 65535 Connection Type: Name of the WAN connection. VPI/VCI: Virtual Path Identifier and Virtual Channel Identifier IP Address: WAN port IP address.

  • Page 57: System Log

    4.6.2 System Log Display system logs accumulated up to the present time. You can trace historical information with this function.
  • Page 58 4.6.3 Statistics Read-only information here includes port status and packet specific statistics. Also provided are "Transmit Statistics" and "Receive Statistics". Ethernet Interface: This field displays the type of port Transmit Frames: This field displays the number of frames transmitted in the last second.
  • Page 59 ADSL Transmit total PDUs: This field displays the number of total PDU transmitted in the last second. Transmit total Error Counts: This field displays the number of total error transmitted in the last second. Receive total PDUs: This field displays the number of total PDU received in the last second.

  • Page 60: Problems Starting Up The Router

    If the ADSL2+ Router is not functioning properly, you can refer first to this chapter for simple troubleshooting before contacting your service provider. This could save your time and effort but if the symptoms persist, then consult your service provider. Problems starting up the router Problem None of the LEDs...

  • Page 61: Problems With The Lan Interface

    Frequent loss of ADSL linesync (disconnections). Problems with the LAN Interface Problem Can’t ping any PCs on the LAN. Ensure that all other devices connected to the same telephone line as your router (e.g. telephones, fax machines, analogue modems) have a line filter connected between them and the wall socket (unless you are using a Central Splitter or Central Filter installed by a qualified and licensed electrician), and ensure that all line filters are correctly...

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