Broadband Products xDSL/Cable manual Virtual Server Settings

Page 24

Enable DHCP server: To enable the DHCP server and allow the router to automatically assign private IP addresses to requesting device, check this box.

Dynamic IP Address Assignment: IP addresses are normally assigned from the entire pool of available addresses in the IP “subnet” to which the router is attached. If you want to reserve some addresses for other purposes you can modify this address pool in the From/To boxes and the press SUBMIT.

From: Start IP address

To: End IP address

Static IP Address Assignment: If you require that specific PCs always obtain the same IP addresses, enter the PC’s MAC address and the IP address to assign via the DHCP process and press ADD.

MAC address: The MAC address of the PC.

IP address: The IP address to assign to the PC.

Static IP Address Assignment List: All configured Static IP Address Assignment entries ap- pear in the displayed table. Entries may be deleted by first selecting the entry and then press- ing the DELETE SELECTED button.

Virtual Server Settings

By default, a privately addressed PC on your LAN or any program or service running in a pri- vately addressed PC on your LAN cannot neither be seen nor accessed from the Internet. However, if you have a service, such as a Web server or an FTP server, on your LAN that you would like to be accessible from the Internet, the settings on this page allows you to do so. Since each IP service uses a special address called a “TCP/UDP Port”, the router can trans- late this request to a destination on your private LAN. The remote Internet user uses the ad- dress of the router as if it was the LAN-resident server and the router does the translation automatically. Thus, the Internet user is never in direct contact with the PC providing the serv- ice and the router then acts as a proxy for this service to the Internet user. You may define multiple entries by first entering the Public Port Number and then the Private Port Number and Private IP Address to which the Public Port translates. The Drop-down list provides port num- bers for standard applications as well as a Customization entry for you define your own port numbers. A special case is the DMZ server, or default virtual server. If you configure this de- vice, all requests to ports that are otherwise unrecognized are directed to the machine with the specified private IP address. You cannot enter port numbers when you define the DMZ server.

Service Name: Choose the service to be redirected. You can select some of the popular TCP services from the drop-down list. If you want to define your own Public Port Numbers, choose the CUSTOM entry in the drop-down list.

Public Port: The destination port number as seen from the Internet using the Public IP ad- dress of the router. This field is only changeable when CUSTOM is selected as the Service Name.

Wireless Broadband Router User Guide

20

Page 23 Page 25
Image 24
Page 23 Page 25
Contents User Guide AugustWireless Broadband Router User Guide August Warranty REPAIR, Replacement and Refund Contents Overview of the Wireless Router Features and SpecificationWireless Router Applications Package ContentsHardware Configuration Front View LED IndicatorsHow to Connect Cables to your Wireless Router System RequirementsConfiguring a PC running MS-Windows 95/98/Me Configuring a PC running MS-Windows XP/2000Confirming Your PC’s IP Configuration Configuring the router via Web BrowserSetup Wizard Log on the RouterOperation Mode Set your Local Time Zone and Local Date/TimeDevice IP Settings Configuring Your Internet Connection Wireless Broadband Router User Guide Wireless Broadband Router User Guide Configure Your Wireless LAN Connection Provide DNS Server Address InformationWireless Broadband Router User Guide Finish Setup Wizard and Save Your Settings Advanced Settings Password SettingsDevice Status What if I forget the Password? System MonitoringDhcp Server Settings Virtual Server Settings Wireless Broadband Router User Guide MAC Filtering Settings IP Filtering SettingsWireless Broadband Router User Guide Static Routing Special ApplicationsFirmware Upgrade System ToolsFactory Default Reboot Router

xDSL/Cable specifications

Broadband products, particularly xDSL (Digital Subscriber Line) and cable, have revolutionized the way individuals and businesses access the internet. Both technologies offer unique characteristics that cater to different users' needs, making them pivotal in the modern digital landscape.

xDSL is a family of technologies that deliver broadband services over traditional copper telephone lines. It encompasses various types such as ADSL (Asymmetric Digital Subscriber Line), SDSL (Symmetric Digital Subscriber Line), and VDSL (Very High-Speed Digital Subscriber Line). ADSL is the most commonly used variant, known for its asymmetric nature, offering higher download speeds compared to upload speeds. This is particularly useful for typical browsing activities where users download more data than they upload. SDSL, on the other hand, provides equal upload and download speeds, making it suitable for businesses that require robust data exchange. VDSL is another advanced variant that utilizes higher frequencies over copper lines, enabling significantly faster speeds, ideal for high-definition streaming and gaming.

One of the core features of xDSL technology is its dependence on existing telephone infrastructure, which allows for easier deployment in many areas. However, the quality of the service heavily relies on the distance from the central office; users located further away may experience reduced speeds.

Meanwhile, cable broadband operates over coaxial cables, which are typically used for cable television. This technology allows for higher bandwidth compared to traditional DSL, facilitating faster internet speeds and greater potential for concurrent connections. Cable relies on a shared infrastructure where multiple users access the same bandwidth; this can lead to variations in speed depending on the number of users online at peak times. Despite this, modern cable technology often leverages DOCSIS (Data Over Cable Service Interface Specification) standards to provide consistent and reliable internet speeds, with DOCSIS 3.0 and 3.1 capable of delivering gigabit speeds.

In terms of characteristics, both xDSL and cable offer advantages and disadvantages. xDSL is widely available and can be delivered in areas where cable service is limited. However, the reliance on copper lines can be a drawback for speed and reliability. Conversely, cable broadband offers higher speeds and better performance for multiple users, though its shared nature can lead to fluctuating speeds during peak usage periods.

In conclusion, both xDSL and cable broadband products present compelling options for users seeking fast and reliable internet access. While they have distinct technologies and characteristics, the choice between them ultimately depends on individual needs, location, and internet usage patterns. As technology continues to evolve, both xDSL and cable will play integral roles in catering to the ever-growing demands for bandwidth and connectivity.
Top Page Image Contents