Motorola VT2442 - Manual (Page 77)

VT2442 Voice Gateway User Guide 71
Overview Installation Troubleshooting Contact FAQ Glossary License
Configuration: Basic Advanced TCP/IP Wireless
download To copy a file from one computer or other network device to another. You can use the Internet to
download files from a server to your home computer. Your voice gateway downloads its
configuration file and firmware from Vonage.
downstream In a cable data or DSL network, the direction of data received by your computer from the Internet.
driver Software that enables a computer to interact with a network or other device. For example, there are
drivers for printers, monitors, graphics adapters, modems, Ethernet, USB, and many others.
DSL A digital subscriber line enables a broadband connection to the Internet over traditional telephone
lines that support DSL. You need a subscription for DSL service from your local telephone company.
dynamic IP
address An IP address that is temporarily leased to a host by a DHCP server. The opposite of static IP
address.
Ethernet The most widely used type of local area network (LAN). The most commonly installed Ethernet
networks are called 10Base-T. 10Base-T provides transmission speeds up to 10 megabits per
second (Mbps), usually over twisted-pair wire. Fast Ethernet (100Base-T) provides transmission
speeds up to 100 Mbps.
F-type connector A type of connector used to connect coaxial cable to equipment such as the VT2442.
firewall A security software system on the VT2442 that enforces an access control policy between the
Internet and the VT2442 LAN.
flow A data path moving in one direction.
GUI graphical user interface
HFC A hybrid fiber/coaxial cable network uses fiber-optic cable as the trunk and coaxial cable to the
subscriber premises.
host Any computer or similar device supporting end-user applications or services with full two-way
network access. Each host has a unique host number that combined with the network number forms
its IP address.
hub On a LAN, a device that connects multiple hosts to the LAN. A hub performs no data filtering. See
also router.
IGMP Internet Group Management Protocol
Internet A worldwide collection of interconnected networks, all using TCP/IP.
IP Internet Protocol is a set of standards that enable different types of computers to communicate with
one another and exchange data through the Internet. IP provides the appearance of a single,
seamless communication system and makes the Internet a virtual network.
IP address An Internet Protocol address identifies a computer or other device on a TCP/IP network. Networks
using the TCP/IP protocol route messages based on the destination IP address.
IPSec The Internet Protocol Security protocols are authentication and encryption standards for secure data
exchange over the Internet.
ISP Internet service provider
LAN A local area network provides a full-time, high-bandwidth connection over a limited area, such as a
building, campus, office, or home. The computers and other devices you connect to your voice
gateway, except for the telephones, form a LAN. Ethernet is the most widely used LAN standard.
MAC address The Media Access Control address uniquely identifies each device that can be connected to an
Ethernet network. It is permanently written to read-only memory (ROM) at the factory and printed on
your VT2442.
MHz Mega hertz. A measure of frequency; one MHz means one million cycles per second.
NAT Network Address Translation is a standard for a LAN to use one set of IP addresses for internal
traffic and a second set of IP addresses for external traffic.
NAPT Network Address Port Translation is the most common form of translation between public and
private IP addresses.
network Two or more computers connected to communicate with each other. Networks have traditionally
been connected using some kind of wiring.
NIC Network interface card is another name for network adapter. A NIC is installed in an expansion slot
or can be built-in. Every Ethernet NIC has a MAC address permanently saved in its ROM.