4-Port ADSL Router User Manual

Terminology

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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.

See TCP/IP.