Motorola HH1620 User Manual page 82

upgradeable.
Flow A data path moving in one direction.
GUI graphical user interface
Hexadecimal A base-sixteen numbering system that uses sixteen sequential numbers (0
to 9 and the letters A to F) as base units before adding a new position. On
computers, hexadecimal is a convenient way to express binary numbers.
A hybrid fiber/coaxial cable network uses fiber-optic cable as the trunk and
HFC
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.
ICMP Internet Control Message Protocol is a protocol used for error, problem,
and informational messages sent between IP hosts and gateways. ICMP
messages are processed by the IP software and are not usually apparent
to the end-user.
IGMP Internet Group Management Protocol
Internet A worldwide collection of interconnected networks, all using TCP/IP.
Internet Protocol is a set of standards that enable different types of
IP
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 HH1620.
MHz Mega hertz. A measure of frequency; one MHz means one million cycles
per second.
Multicast A data transmission sent from one sender to multiple receivers. See also
broadcast and unicast.
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.
OOB DTMF Out-of-Band Dual-Tone Multi-Frequency protocol for voice traffic.
PING A network utility that tests host reachability by sending a small packet to
the host and waiting for a reply. If you PING a computer IP address and
receive a reply, you know the computer is reachable over the network. It
HH1620 Wireless VoIP Gateway
User's Guide
75