Netcom NB9W manual Dsl, Ftp, Ggp, Gre, Http, Icmp, Igmp, Isp, Led

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 BASE-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 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.
Gbps	Abbreviation for Gigabits (GIG-uh-bits) per second, or one billion bits per second. Internet data rates are often
	expressed in Gbps.
GRE	Generic Routing Encapsulation. TCP/IP protocol suite, transport layer encapsulation protocol.
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
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.
in-line filter	See Microfilter
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 host ID uniquely identifying the host itself on that network. A network mask is
	used to define the network ID and the host ID. Because IP addresses are difficult to remember, they usually have an
	associated domain name that can be specified instead. See also domain name, network mask.
ISP	Internet Service Provider A company that provides Internet access to its customers, usually for a fee.
LAN	Local Area Network A network limited to a small geographic area, such as a home, office, or small building.
LED	Light Emitting Diode An electronic light-emitting device. The indicator lights on the front of the My ADSL Modem are
	LEDs.
MAC address	Media Access Control address The permanent hardware address of a device, assigned by its manufacturer. MAC
	addresses are expressed as six pairs of characters.
mask	See network mask.
Mbps	Abbreviation for Megabits per second, or one million bits per second. Network data rates are often expressed in Mbps.
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YML790 Rev8