Siemens ADSL 500 user manual Glossary

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Chapter 7: Glossary

Private IP Address

Private IP addresses are also LAN IP addresses, but are considered “illegal” IP addresses to the Internet. They are private to an enterprise while still permitting full network layer connectivity between all hosts inside an enterprise as well as all public hosts of different enterprises.

The ADSL Router uses private IP addresses by assigning them to the LAN that cannot be directly accessed by the Internet or remote server. To access the Internet, private network should have an agent to translate the private IP address to public IP address.

Public IP Address

Public IP addresses are LAN IP addresses that can be considered “legal” for the Internet, because they can be recognized and accessed by any device on the other side of the DSL connection. In most cases they are allocated by your ISP.

If you are given a range of fixed IP addresses, then one can be assigned to the router and the others to network devices on the LAN, such as computer workstations, ftp servers, and web servers.

PVC (Permanent Virtual Circuit)

A PVC is a logical point-to-point circuit between customer sites. PVCs are low-delay circuits because routing decisions do not need to be made along the way. Permanent means that the circuit is preprogrammed by the carrier as a path through the network. It does not need to be set up or torn down for each session.

RIP (Routing Information Protocol)

RIP is a routing protocol that uses the distance-vector routing algorithms to calculate least-hops routes to a destination. It is used on the Internet and is common in the NetWare environment. It exchanges routing information with other routers. It includes V1, V2 and V1&V2, which controls the sending and receiving of RIP packets over Ethernet.

UDP (User Datagram Protocol)

UDP is a connectionless transport service that dispenses with the reliability services provided by TCP. UDP gives applications a direct interface with IP and the ability to address a particular application process running on a host via a port number without setting up a connection session.

Virtual Server

You can designate virtual servers, e.g., a FTP, web, telnet or mail server, on your local network and make them accessible to the outside world. A virtual server means that it is not a dedicated server -- that is, the entire computer is not dedicated to running on the public network but in the private network.

VPI (Virtual Path Identifier) & VCI (Virtual Channel Identifier)

A VPI is a 8-bit field while VCI is a 16-bit field in the ATM cell header. A VPI identifies a link formed by a virtual path and a VCI identifies a channel within a virtual path. In this way, the cells belonging to the same connection can be distinguished. A unique and separate VPI/VCI identifier is assigned in advance to indicate which type of cell is following, unassigned cells, physical layer OAM cells, metasignalling channel or a generic broadcast signaling channel. Your ISP should supply you with the values.

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Contents Santis Adsl 50/500 For Service Safety NotesFor Installation For UsingConfiguration ContentTroubleshooting Before You Use FeaturesSystem Requirements Security FeaturesConfiguration and Management For Wireless ClientsUnpacking Front Panel OverviewPhysical Outlook 12VDC Rear PanelLAN 1 ConsoleChoosing a place for the Adsl Router InstallationConnecting the Adsl Router 1a Analog Pstn installationBelgium-Line Filters 1b Isdn installationPage For Windows 98 SE ConfigurationConfigure TCP/IP on Client PC Your network interface card Configuration Page For Windows ME For Windows NT Configuration Page For Windows Page Configuration For Windows XP Renew IP Address on Client PC For Windows NT For Windows Activate WEP Securing your wireless networkChange / activate passwords Change the SsidInternet Access Configuration Quick Configuration via web browserWireless Security Association Control Wireless Configuration WEP encryptionAccess to the Advanced Configuration Advanced Configuration via web browserQuick Menus of the Advanced ConfigurationSave & Restart button To Have the New Settings Take EffectApply & Save button Quick start Advanced FeaturesAccount AdministrationDevice Information Web Port Remote AccessChoose Save this file to disk and click Ok Quick ConfigurationReset Router Save ConfigurationUpgrade Software DS/US Latency Trellis coding Line Attenuation Noise Margin DSL ConnectionDS Downstream Routing Table WAN ConnectionTraffic Counter Dhcp Table Wireless ClientDSL Configuration ConfigurationDhcp Server LAN ConfigurationIP Address Page Wireless Ssid Wlan ConfigurationWired Equivalent Privacy Mechanism WAN Configuration Local WAN IP Address ATM Service TypePCR Peak Cell Rate Encapsulation TypeIP Route DNS Relay NetmaskDynamic Routing DNS Server Firewall SecurityConfiguration Virtual Server Intrusion DetectionConfiguration Igmp Proxy UPnP Connection Mode Interface Router ModeConnection Mode Page Bridge Mode MER Mode PPPoA + NAT Mode PPPoE + NAT Mode PPPoE Relay Multiple PVCs Mode Problems with WAN TroubleshootingProblems with LAN Action Problems with UpgradingTroubleshooting Glossary Glossary Software Appendix SpecificationHardware Appendix Specification

ADSL 500, ADSL 50 specifications

Siemens has made significant contributions to telecommunication technologies, particularly in the realm of Asymmetric Digital Subscriber Line (ADSL). Two prominent products in their portfolio are the Siemens ADSL 50 and ADSL 500, both designed to enhance broadband connectivity for residential and business users.

The Siemens ADSL 50 is a versatile modem that supports downlink speeds of up to 50 Mbps, making it ideal for users who require substantial data bandwidth for activities such as streaming, gaming, and video conferencing. One of its key features is the ability to optimize connection stability using advanced modulation techniques like DMT (Discrete Multi-Tone). This ensures efficient data transmission by dividing the bandwidth into multiple channels, allowing simultaneous data transfer without significant interference.

Another notable characteristic of the ADSL 50 is its built-in Quality of Service (QoS) functionality. This feature enables prioritization of traffic, ensuring that real-time applications like VoIP or online gaming experience minimal latency and jitter. The device is also equipped with multiple Ethernet ports, providing connectivity for various devices within the home or office.

Meanwhile, the Siemens ADSL 500 takes connectivity a step further by offering a higher maximum downlink speed of up to 500 Mbps. This model caters to users with more demanding bandwidth requirements, such as large enterprises or tech-savvy households with multiple users. Like the ADSL 50, the ADSL 500 employs advanced modulation techniques to manage data traffic effectively.

The ADSL 500 also features enhanced security protocols to safeguard user data, including WPA2 encryption for wireless connectivity, which is essential in today's digital landscape where cybersecurity threats are prevalent. Its compatibility with IPv6 ensures that it remains relevant as the industry transitions to this next-generation internet protocol.

Both models come with user-friendly configurations, typically allowing for quick set-up through web-based interfaces. They often include features like remote management and diagnostics, enabling users to troubleshoot connection issues efficiently.

In summary, the Siemens ADSL 50 and ADSL 500 provide robust solutions for broadband connectivity, combining high-speed capabilities with advanced features to meet the evolving needs of users. Their focus on stability, efficiency, and security makes them reliable choices for anyone looking to enhance their internet experience.
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