User manual TRENDNET TDM-C400

[. . . ] TDM-E400 / TDM-C400 ADSL Modem Router User's Manual Important Rules for Safe Operation In addition to the careful attention devoted to quality standards on the manufacture of your ADSL2+ Ethernet Modem Router, safety is a major factor in the design of every product. This section lists important information that will help assure your enjoyment and proper use of the ADSL2+ Ethernet Modem Router and accessory equipment. Please read them carefully before operation and using your Router. Read and Follow Instructions ­ you should read all the safety and operating instructions before operating the Router. Retain Instructions ­ You should save all the safety and operating instructions, for your future reference. [. . . ] If it cannot determine which of these devices provides a good next hop (because no such route has been defined), then that device will forward the data to its default gateway. Eventually, a high level device, using a predefined IP route, will be able to forward the data along a path to its destination. On a typical small home or office LAN, the existing routes that set up the default gateways for your LAN computers and for the Ethernet Modem Router provide the most appropriate path for all your Internet traffic. On your LAN computers, a default gateway directs all Internet traffic to the LAN interface on the Ethernet Modem Router . Your LAN computers know their default gateway either because you assigned it to them when you modified their TCP/IP properties, or because you configured them to receive the information dynamically from a server whenever they access the Internet. (Each of these processes is described in "Quick Start Part 2 -- Configuring Your Computers. ") On the Ethernet Modem Router itself, a default gateway is defined to direct all outbound Internet traffic to a router at your ISP. This default gateway is assigned automatically by your ISP whenever the device negotiates an Internet connection. (The process for adding a default route is described on page 110. ) You may need to define routes if your home setup includes two or more networks or subnets, if you connect to two or more ISP services, or if you connect to a remote corporate LAN. 107 TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User's Manual Viewing the IP Routing Table All IP-enabled computers and routers maintain a table of IP addresses that are commonly accessed by their users. For each of these destination IP addresses, the table lists the IP address of the first hop the data should take. To view the Ethernet Modem Router 's routing table, click the Routing tab. IP Route Table Page The IP Route Table displays a row for each existing route. These include routes that were predefined on the device, routes you may have added, and routes that the device has identified automatically through communication with other devices. The routing table should reflect a default gateway, which directs outbound Internet traffic to your ISP. This default gateway is shown in the row containing destination address 0. 0. 0. 0. 108 Chapter 10. Configuring IP Routes The following table defines the fields in the IP Routing Table. Field Destination Description Specifies the IP address of the destination computer. The destination can specified as the IP address of a specific computer or an entire network. It can also be specified as all zeros to indicate that this route should be used for all destinations for which no other route is defined (this is the route that creates the default gateway). Indicates which parts of the destination address refer to the network and which parts refer to a computer on the network. Specifies the next IP address to send data to when its final destination is that shown in the destination column. Displays the name of the interface on the device through which data is forwarded to the specified next hop. In a direct route, the source and destination computers are on the same network, and the router attempts to directly deliver the data to the computer. [. . . ] Virtual Path Identifier Together with the Virtual Circuit Identifier (VCI), the VPI uniquely identifies a VC. Wide Area Network Any network spread over a large geographical area, such as a country or continent. With respect to the, WAN refers to the Internet. upstream USB VC VCI VPI WAN 196 Index 100BASE-T, 190 10BASE-T, 190 ADSL, 190 ADSL cable, 20 ADSL port, 20 Alarm page, 167 Alarms, 167 Asynchronous Transfer Mode. See ATM ATM, 190 ATM VC ­ Add page, 59, 60 ATM VC Configuration page, 58 Attacks, 136 Autodetect configuring, 184 overview, 183 Autodetect page, 184 Backup/Restore Config page, 179 BASIC NAT flavor, 130 BIMAP NAT flavor, 133 Binary numbers, 191 Bits, 191 Black List, 136 managing, 138 Blocked Protocols page, 157 Bridge Configuration page, 70, 79 Bridge filter example, 155 Bridge Filter Configuration page, 150 Bridge Filter Rule page, 151 Bridge Filter Subrule page, 153 Bridge filters, 150 Bridge forwarding table, 76 Bridgeable interfaces, 79, 82, 83, 85 Bridged Internet connection, configuring, 82 Bridge-Router AutoSense (BRAS), 85 Bridges overview, 76 Bridging, 191 special features, 84 Broadband, 191 Broadcast, 191 Commit & Reboot page, 46 Computers configuring IP information, 22 Configuration Manager overview, 38 troubleshooting, 189 Data packet, 117 Date and time, changing, 43 Default configuration, 35 Default gateway, 107 De-militarized zones, 141 Denial of Service, 136 DHCP defined, 93, 191 device modes, 94 setting operating mode, 101 DHCP Address Table page, 99 DHCP client defined, 93 DHCP Configuration page, 96, 101 DHCP relay, 191 configuring, 94 configuring device as, 100 DHCP Relay Configuration page, 100 DHCP server, 191 configuring, 94 configuring the device as, 95 197 TDM-E400 / TDM-C400ADSL2+ Ethernet Modem Router User's Manual defined, 93 modifying, viewing pools, 99 pools, 93 using a LAN device as, 94 using existing on LAN, 52 using ISP as, 94 viewing assigned addresses, 99 DHCP Server Pool - Modify page, 98 DHCP Server Pool--Add page, 96 Diagnosing problems after installation, 37 Diagnostics page, 172 Diagnostics Page Traceroute, 175 Diagnostics-Ping page, 173 DNS, 97, 103, 191 defined, 103 relay, 104 DNS Configuration page, 105 Domain name, 97, 191 defining for ADSL-Ethernet router, 45 Domain Name System. 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