Corinex Global Powerline Router User Manual

Page 92

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Mbps and is usually utilized for 100BaseTX networks.

Database - A database is a collection of data that is organized so that its
contents can easily be accessed, managed, and updated.

Data Packet - One frame in a packet-switched message. Most data
communications is based on dividing the transmitted message into
packets. For example, an Ethernet packet can be from 64 to 1518 bytes in
length.

Default Gateway - The routing device used to forward all traffic that is not
addressed to a station within the local subnet.

Demodulation - Opposite of modulation; the process of retrieving data
from a modulated carrier wave.

DHCP (Dynamic Host Configuration Protocol) - A protocol that lets
network administrators centrally manage and automate the assignment
of Internet Protocol (IP) addresses in an organization’s network. Using
the Internet’s set of protocol (TCP/IP), each machine that can connect to
the Internet needs a unique IP address. When an organization sets up its
computer users with a connection to the Internet, an IP address must be
assigned to each machine. Without DHCP, the IP address must be entered
manually at each computer and, if computers move to another location
in another part of the network, a new IP address must be entered. DHCP
lets a network administrator supervise and distribute IP addresses from a
central point and automatically sends a new IP address when a computer
is plugged into a different place in the network. DHCP uses the concept
of a "lease" or amount of time that a given IP address will be valid for a
computer. The lease time can vary depending on how long a user is likely
to require the Internet connection at a particular location. It’s especially
useful in education and other environments where users change frequently.
Using very short leases, DHCP can dynamically reconfigure networks in
which there are more computers than there are available IP addresses.
DHCP supports static addresses for computers containing Web servers that
need a permanent IP address.

DMZ - (DeMilitarized Zone) allows one IP address (or computer) to be
exposed to the Internet. Some applications require multiple TCP/IP ports
to be open. It is recommended that you set your computer with a static IP
address if you want to use DMZ Hosting.

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Appendix B: Glossary

Corinex Powerline Router User Guide

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