Nokia DSL Gateway High-Speed Internet Connection User Manual

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Nokia M/MW Gateways M1112, M1122, MW1112, MW1122, MW1324, MW1352

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Nokia Proprietary and Confidential

Issue 1-0 en

HomePNA, HPNA

Technology for the home network based on Ethernet and using existing phone
lines. Voice and data travel on the same wires without interfering with each other.

IP address

Numerical identification individualising a device connected to the Internet or a
network. For example 192.168.1.2.

Local area network,
LAN

Data transmission network covering a small area, for example a flat or a house.
Usually based on Ethernet technology.

MAC address

Unique fixed address of a piece of hardware, normally set at the time of
manufacture and used in LAN protocols.

Multicast

Transmitting data to a select group of recipients at the same time, for example
sending an e-mail message to a mailing list. Rf. broadcast.

Network address
port translation,
NAPT

Method by which IP addresses and translating transport identifiers (for example
TCP and UDP port numbers, ICMP query identifiers) are mapped from one
address realm to another, providing transparent routing to end hosts.

Packet Internet
Groper, ping

Program used to test whether a particular network destination is accessible, by
sending an ICMP (Internet control message protocol) echo request and waiting
for a response. Ping is used primarily to troubleshoot Internet connections.

Ping

See Packet Internet Groper.

Proxy server

Server which retrieves information from the Internet and stores the information
that users frequently use to speed up the retrieval. For example, in using the web
the proxy server speeds up the downloading of those web pages located behind
slow or congested network connections.

Request for
comments, RFC

Document series which describes the Internet suite of protocols and related
experiments.

Router

Device or software which transmits data from a source network to a destination
network in accordance with an address.

Single pair high bit
rate digital
subscriber line,
SHDSL

High-speed transmission technology using existing copper telephone lines.

Stateful inspection
firewall, SIF

Firewall which provides access control at the network layer by inspecting the
contents of incoming packets and accepting or rejecting them depending upon
their content.

Subnet mask

Numerical indentification used to determine what subnetwork an IP address
belongs to, for example 255.255.255.0.

Tunnelling

Technique to improve the rate, reliability, and security of transmission in a
network by creating for transmission a permanent connection, called tunnel,
which is often secured by encryption.