Table of Contents
Advertisement
Ethernet
Filtering
filtering rule
Firewall
FTP
GGP
Gbps
GRE
hop
hop count
host
HTTP
ICMP
NB4 User Guide
68
The most commonly installed computer network technology,
usually using twisted pair wiring. Ethernet data rates are 10 Mbps
and 100 Mbps. See also BASE-T,100BASE-T, twisted pair.
To screen out selected types of data, based on filtering rules.
Filtering can be applied in one direction (upstream or down-
stream), or in both directions.
A rule that specifies what kinds of data a routing device will
accept and/or reject. Filtering rules are defined to operate on an
interface (or multiple interfaces) and in a particular direction
(upstream, downstream, or both).
Any method of protecting a computer or LAN connected to the
Internet from intrusion or attack from the outside. Some firewall
protection can be provided by packet filtering and Network
Address Translation services.
File Transfer Protocol - A program used to transfer files between
computers connected to the Internet. Common uses include
uploading new or updated files to a web server, and downloading
files from a web server.
Gateway to Gateway Protocol. An Internet protocol that specifies
how gateway routers communicate with each other.
Abbreviation for Gigabits (GIG-uh-bits) per second, or one
billion bits per second. Internet data rates are often expressed in
Gbps.
Generic Routing Encapsulation. TCP/IP protocol suite, transport
layer encapsulation protocol.
When you send data through the Internet, it is sent first from
your computer to a router, and then from one router to another
until it finally reaches a router that is directly connected to the
recipient. Each individual "leg" of the data's journey is called a
hop.
The number of hops that data has taken on its route to its
destination. Alternatively, the maximum number of hops that a
packet is allowed to take before being discarded , See also TTL.
A device (usually a computer) connected to a network.
Hyper-Text Transfer Protocol HTTP is the main protocol used to
transfer data from web sites so that it can be displayed by web
browsers. See also web browser
Internet Control Message Protocol An Internet protocol used to
report errors and other network-related information. The ping
command makes use of ICMP.
YML733Rev1
www.netcomm.com.au
Advertisement
Table of Contents
