Motorola SVG2500 manual Dhcp

17 GLOSSARY
TERM	DEFINITION
default route	The route by which packets are forwarded when other routes in
	the routing table do not apply.
dB	decibel
dBc	Signal level expressed in dB relative to the unmodulated carrier
	level desired.
DBm	A unit of measurement referenced to one milliwatt across
	specified impedance. 0dBm = 1 milliwatt across 75 ohms.
dBmV	Signal level expressed in dB as the ratio of the signal power in a
	75-ohm system to a reference power when 1 mV is across 75
	ohms.
demodulation	An operation to restore a previously modulated wave and
	separate the multiple signals that were combined and
	modulated on a sub carrier.
DHCP	A Dynamic Host Configuration Protocol server dynamically
	assigns IP addresses to client hosts on an IP network. DHCP
	eliminates the need to manually assign static IP addresses
	by “leasing” an IP address and subnet mask to each client. It
	enables the automatic reuse of unused IP addresses.
	The SVG2500 is simultaneously a DHCP client and a DHCP
	server.
	A DHCP server at the cable system headend assigns a public IP
	address to the SVG2500 and optionally to clients on the
	SVG2500 LAN.
	The SVG2500 contains a built-in DHCP server that assigns
	private IP addresses to clients.
distortion	An undesired change in signal waveform within a transmission
	medium. A nonlinear reproduction of the input waveform.
DMZ	A “de-militarized zone” is one or more hosts logically located
	between a private LAN and the Internet. A DMZ prevents direct
	access by outside users to private data. (The term comes from
	the geographic buffers located between some conflicting
	countries, such as North and South Korea.) In a typical small
	DMZ configuration, the DMZ host receives requests from private
	LAN users to access external web sites and initiates sessions for
	these requests. The DMZ host cannot initiate a session back to
	the private LAN. Internet users outside the private LAN can
	access only the DMZ host. You can use a DMZ to set up a web
	server or for gaming without exposing confidential data.

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