DSL-504 ADSL Router User’s Guide

Networks attached to the Internet are assigned class types that determine the maximum number of possible hosts per network. The previous figure illustrates how the net and host portions of the IP address differ among the three classes. Class A is assigned to networks that have more than 65,535 hosts; Class B is for networks that have 256 to 65534 hosts; Class C is for networks with less than 256 hosts.

 

IP Network Classes

 

Cla

Maximum

Network Addresses

Maximum

ss

Number of

(Host Portion in

Number of

 

Networks

Parenthesis)

Hosts per

 

in Class

 

Network

A

126

1(.0.0.0) to 126(.0.0.0)

16,777,214

B

16,382

128.1(.0.0) to 191.254(

65,534

 

 

.0.0)

 

C

2,097,150

192.0.1(.0) to

254

 

 

223.255.254(.0)

 

Note:All network addresses outside of these ranges (Class D and E) are either reserved or set aside for experimental networks or multicasting.

When an IP address's host portion contains only zero(s), the address identifies a network and not a host. No physical device may be given such an address.

The network portion must start with a value from 1 to 126 or from 128 to 223. Any other value(s) in the network portion may be from 0 to 255, except that in class B the network addresses 128.0.0.0 and 191.255.0.0 are reserved, and in class C the network addresses 192.0.0.0 and 223.255.255.0 are reserved.

The value(s) in the host portion of a physical device's IP address can be in the range of 0 through 255 as long as this portion is not all-0 or all-255. Values outside the range of 0 to 255 can never appear in an IP address (0 to 255 is the full range of integer values that can be expressed with eight bits).

The network portion must be the same for all the IP devices on a discrete physical network (a single Ethernet LAN, for example, or a WAN link). The host portion must be different for each IP device — or, to be more precise, each IP- capable port or interface — connected directly to that network.

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D-Link DSL-504 manual IP Network Classes
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DSL-504 specifications

The D-Link DSL-504 is a versatile and reliable ADSL modem/router that has been designed to meet the needs of both home and small office users. With its compact size and user-friendly interface, this device has garnered popularity among those who require stable internet connectivity without the complexity of managing multiple devices.

One of the main features of the D-Link DSL-504 is its ADSL compatibility, which enables users to take full advantage of high-speed internet connections offered by ADSL service providers. This modem/router supports a wide range of ADSL standards, including ADSL2 and ADSL2+, providing users with robust performance and efficient bandwidth utilization. This means users can enjoy faster download speeds and improved upload rates, making it ideal for activities like streaming, online gaming, and video conferencing.

The D-Link DSL-504 is equipped with several Ethernet ports that allow for wired connections to multiple devices, ensuring that users have the ability to connect their PCs, laptops, and gaming consoles directly to the network for optimal performance. Additionally, the built-in wireless capability offers Wi-Fi connectivity, allowing users to connect their smartphones, tablets, and other devices without the need for cumbersome cables. The wireless transmission uses the 802.11g standard, providing speeds of up to 54 Mbps.

Security is a significant concern for home and business users, and the D-Link DSL-504 addresses this with a variety of security features. It supports encryption standards like WEP and WPA/WPA2, ensuring that wireless connections are secure from unauthorized access. The device also incorporates a built-in firewall, providing an additional layer of protection against external threats.

The DSL-504 offers easy setup and management through a web-based interface, allowing users to customize their network settings effortlessly. The intuitive configuration wizard guides users through the process, making it accessible even for those with minimal technical expertise.

In summary, the D-Link DSL-504 is a reliable ADSL modem/router that combines speed, security, and ease of use. Its compatibility with various ADSL standards, multiple Ethernet ports, built-in wireless functionality, and strong security features make it a compelling choice for anyone looking to establish a stable internet connection. Whether for home use or small office operations, the DSL-504 provides the necessary tools to enhance connectivity and productivity.
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