Asus AAM6010EV-M - Manual (Page 49)

AAM6010EV-M ADSL Combo Router User’s Manual
download To transfer data in the downstream direction, i.e., from the Internet to the user.
DSL Digital Subscriber Line
A technology that allows both digital data and analog voice signals to travel over
existing copper telephone lines.
Ethernet The most commonly installed computer network technology, usually using twisted
pair wiring. Ethernet data rates are 10 Mbps and 100 Mbps. See also 10BASE-T,
100BASE-T, twisted pair.
filtering To screen out selected types of data, based on filtering rules. Filtering can be
applied in one direction (upstream or downstream), or in both directions.
filtering rule A rule that specifies what kinds of data the 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).
firewall 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.
FTP 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.
GGP Gateway to Gateway Protocol. An Internet protocol that specifies how gateway
routers communicate with each other.
hop 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.
hop count 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).
host A device (usually a computer) connected to a network.
HTTP 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, web site.
ICMP Internet Control Message Protocol
An Internet protocol used to report errors and other network-related information.
The ping command makes use of ICMP.
IGMP Internet Group Management Protocol
An Internet protocol that enables a computer to share information about its
membership in multicast groups with adjacent routers. A multicast group of computers
is one whose members have designated as interested in receiving specific content
from the others. Multicasting to an IGMP group can be used to simultaneously update
the address books of a group of mobile computer users or to send company
newsletters to a distribution list.
Internet The global collection of interconnected networks used for both private and business
communications.
intranet A private, company-internal network that looks like part of the Internet (users
access information using web browsers), but is accessible only by employees.
IP See TCP/IP.
IP address Internet Protocol address
The address of a host (computer) on the Internet, consisting of four numbers, each
from 0 to 255, separated by periods, e.g., 209.191.4.240. An IP address consists
of a network ID that identifies the particular network the host belongs to, and a