Subnet Mask

DSL-G624T Wireless A DSL Router User’s Guide

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

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.

The network portion of an IP address will be referred to in this manual as a network number; the host portion will be referred to as a host number.

To connect to the Internet or to any private IP network that uses an Internet-assigned network number, you must obtain a registered IP network number from an Internet-authorized network information center. In many countries you must apply through a government agency, however they can usually be obtained from your Internet Service Provider (ISP).

If your organization's networks are, and will always remain, a closed system with no connection to the Internet or to any other IP network, you can choose your own network numbers as long as they conform to the above rules.

If your networks are isolated from the Internet, e.g. only between your two branch offices, you can assign any IP Addresses to hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP Addresses specifically for private (stub) networks:

Class	Beginning Address	Ending Address
A	10.0.0.0	10.255.255.255

B	172.16.0.0	172.31.255.255

C	192.168.0.0	192.168.255.255

It is recommended that you choose private network IP Addresses from the above list. For more information on address assignment, refer to RFC 1597, Address Allocation for Private Internets and RFC 1466, Guidelines for Management of IP Address Space.

In the absence of subnetworks, standard TCP/IP addressing may be used by specifying subnet masks as shown below.

IP Class

Class A

Class B

Class C

Subnet Mask

255.0.0.0

255.255.0.0

255.255.255.0

Subnet mask settings other than those listed above add significance to the interpretation of bits in the IP address. The bits of the subnet mask correspond directly to the bits of the IP address. Any bit an a subnet mask that is to correspond to a net ID bit in the IP address must be set to 1.

DSL-G624T, D-Link Wireless ADSL Router specifications

The D-Link Wireless ADSL Router, DSL-G624T, is a versatile and powerful networking solution designed for home and small office environments. This router combines the functionality of ADSL modem capabilities with the convenience of wireless connectivity, making it an ideal choice for users looking to establish a reliable internet connection without the hassle of multiple devices.

One of the primary features of the DSL-G624T is its ADSL2+ support, which allows download speeds of up to 24 Mbps. This high-speed capability ensures that users can surf the web, stream videos, and engage in online gaming with minimal lag and buffering. The built-in ADSL modem means that users can connect directly to their ISP with no need for additional hardware, simplifying setup and reducing clutter.

In terms of wireless technology, the DSL-G624T supports the 802.11g Wi-Fi standard, which offers a maximum theoretical speed of 54 Mbps. This allows for a stable and speedy wireless connection throughout the home or office, supporting multiple users and devices simultaneously. The router also features Wireless Distribution System (WDS) functionality, enabling users to extend the wireless network easily by connecting additional routers or access points.

Security is a crucial aspect of any networking device, and the DSL-G624T does not disappoint. It includes advanced security features such as WPA/WPA2 encryption, ensuring that users' data remains safe from unauthorized access. Additionally, the router supports MAC address filtering and firewall protection, providing an additional layer of defense against potential threats.

The DSL-G624T is equipped with four 10/100 Mbps Ethernet ports, allowing users to connect wired devices such as desktop computers, gaming consoles, or network-attached storage directly to the router. This is particularly useful for systems that require stable connections, such as for gaming or streaming high-definition content.

Installation and management of the DSL-G624T is user-friendly, thanks to its web-based interface. Users can easily configure settings, manage connected devices, and monitor their network's performance. The provision of DHCP support and easy-to-follow wizards streamlines the setup process for users of all technical levels.

In conclusion, the D-Link Wireless ADSL Router, DSL-G624T, combines high-speed ADSL modem capabilities with robust wireless networking features. With its solid performance, essential security measures, and ease of use, this router is a fantastic choice for users looking to enhance their internet connectivity at home or in small office environments.