DSL-360T ADSL Modem User’s Guide

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IP Concepts

This appendix describes some basic IP concepts, the TCP/IP addressing scheme and show how to assign IP Addresses.

When setting up the Modem, you must make sure it has a valid IP address. Even if you will not use the WAN port (ADSL port), you should, at the very least, make sure the Ethernet LAN port is assigned a valid IP address. This is required for telnet, in-band SNMP management, and related functions such as “trap” handling and TFTP firmware download.

IP Addresses

The Internet Protocol (IP) was designed for routing data between network sites all over the world, and was later adapted for routing data between networks within any site (often referred to as “subnetworks” or “subnets”). IP includes a system by which a unique number can be assigned to each of the millions of networks and each of the computers on those networks. Such a number is called an IP address.

To make IP addresses easy to understand, the originators of IP adopted a system of representation called “dotted decimal” or “dotted quad” notation. Below are examples of IP addresses written in this format:

201.202.203.204 189.21.241.56 125.87.0.1

Each of the four values in an IP address is the ordinary decimal (base 10) representation of a value that a computer can handle using eight “bits” (binary digits — 1s and 0s). The dots are simply convenient visual separators.

Zeros are often used as placeholders in dotted decimal notation; 189.21.241.56 can therefore also appear as 189.021.241.056.

IP networks are divided into three classes on the basis of size. A full IP address contains a network portion and a “host” (device) portion. The network and host portions of the address are different lengths for different classes of networks, as shown in the table below.

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D-Link DSL-360T user manual IP Concepts, IP Addresses

DSL-360T specifications

The D-Link DSL-360T is a versatile ADSL modem/router designed to cater to the needs of home and small office users. This device integrates the functionalities of both a DSL modem and a router, allowing users to connect their devices to the Internet wirelessly or through wired connections.

One of the main features of the DSL-360T is its support for ADSL2/2+ technology, which enhances Internet connectivity by offering higher speeds compared to standard ADSL. This modem can achieve downstream data rates of up to 24 Mbps, making it suitable for streaming, online gaming, and other bandwidth-intensive tasks. Such capability ensures that users can enjoy smooth and reliable Internet access, even with multiple devices connected simultaneously.

The DSL-360T also features built-in NAT (Network Address Translation) and DHCP (Dynamic Host Configuration Protocol), which simplifies network management and allows multiple devices to share a single Internet connection. This feature is particularly advantageous for small offices or households with several users, as it eliminates the need for additional hardware to manage the network.

In terms of connectivity, the device is equipped with four Ethernet LAN ports, allowing for wired connections to computers, printers, and other devices. This wired option offers a stable and high-speed connection, ideal for tasks such as large file transfers or video conferencing. The router also has wireless capabilities, supporting the 802.11g standard for Wi-Fi connections, providing users with the flexibility to access the Internet from anywhere within the range of the network.

Security is another important aspect of the DSL-360T, which comes with built-in firewall protection and support for WPA/WPA2 encryption protocols. These features ensure that users’ data remains secure from unauthorized access, a critical consideration in today’s digital age.

The compact design of the modem/router is user-friendly, with LED indicators that provide real-time information about the device’s status, including power, DSL, and LAN connectivity. This visual feedback helps users troubleshoot any potential issues quickly.

In conclusion, the D-Link DSL-360T is a robust solution for users seeking reliable ADSL connectivity combined with versatile networking capabilities. With its support for advanced ADSL technologies, multiple connection options, and strong security measures, this device is well-suited for both home and small office environments.