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Siemens ADSL 500 user manual Glossary

Models: ADSL 500 ADSL 50

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SANTIS ADSL 50/500 User Manual

Chapter 7: Glossary

ARP (Address Resolution Protocol )

ARP is a TCP/IP protocol for mapping an IP address to a physical machine address that is recognized in the local network, such as an Ethernet address.

A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address.

Inverse ARP (In-ARP), on the other hand, is used by a host to discover its IP address. In this case, the host broadcasts its physical address and a RARP server replies with the host's IP address.

DHCP (Dynamic Host Configuration Protocol)

When operates as a DHCP server, the ADSL Router assign IP addresses to the client PCs on the LAN. The client PCs “leases” these Private IP addresses for a user-defined amount of time. After the lease time expires, the private IP address is made available for assigning to other network devices.

The DHCP IP address can be a single, fixed public IP address, an ISP assigned public IP address, or a private IP address.

If you enable DHCP server on a private IP address, a public IP address will have to be assigned to the NAT IP address, and NAT has to be enabled so that the DHCP IP address can be translated into a public IP address. By this, the client PCs are able to access the Internet.

LAN (Local Area Network) & WAN (Wide Area Network)

A LAN is a computer network limited to the immediate area, usually the same building or floor of a building. A WAN, on the other hand, is an outside connection to another network or the Internet.

The Ethernet side of the ADSL Router is called the LAN port. It is a twisted-pair Ethernet 10Base-T interface. A hub can be connected to the LAN port. More than one computers, such as server or printer, can be connected through this hub to the ADSL Router and composes a LAN.

The DSL port of the ADSL Router composes the WAN interface, which supports PPP or RFC 1483 connecting to another remote DSL device.

NAT (Network Address Translation) IP Address

NAT is an Internet standard that translates a private IP within one network to a public IP address, either a static or dynamic one. NAT provides a type of firewall by hiding internal IP addresses. It also enables a company to use more internal IP addresses.

If the IP addresses given by your ISP are not enough for each PC on the LAN and the ADSL Router, you need to use NAT. With NAT, you make up a private IP network for the LAN and assign an IP address from that network to each PC. One of some public addresses is configured and mapped to a private workstation address when accesses are made through the gateway to a public network.

For example, the ADSL Router is assigned with the public IP address of 168.111.2.1. With NAT enabled, it creates a Virtual LAN. Each PC on the Virtual LAN is assigned with a private IP address with default value of 192.168.1.2 to 192.168.2.254. These PCs are not accessible by the outside word but they can communicate with the outside world through the public IP 168.111.2.1.

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Siemens ADSL 500 user manual Glossary
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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.