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NETGEAR CG814WH Wireless Cable Modem Gateway
new IP address must be entered. DHCP lets a network administrator
supervise and distribute IP addresses from a central point and automatically
sends a new IP address when a computer is plugged into a different place in
the network.
DHCP uses the concept of a "lease" or amount of time that a given IP address
will be valid for a computer. The lease time ca vary depending on how long a
user is likely to require the Internet connection at a particular location. It's
especially useful in education and other environments where users change
frequently. Using very short leases, DHCP can dynamically reconfigure
networks in which there are more computers than there are available IP
addresses.
DHCP supports static addresses for computers containing Web servers that
need a permanent IP address.
DMZ – A DMZ (DeMilitarized Zone) is a computer host or small network
inserted as a "neutral zone" between a company's private network and the
outside public network. It prevents outside users from getting direct access to
a server that has company data.
DNS – The domain name system (DNS) is the way that Internet domain name
are located and translated into Internet Protocol (IP) addresses. A domain
name is a meaningful and easy-to-remember "handle" for an Internet address.
Domain – A sub-network comprised of a group of clients and servers under
the control of one security database. Dividing LANs into domains improves
performance and security.
DSSS – Also known as "Direct Sequence Speed Spectrum", this is a variety of
radio transmission methods that continuously change frequencies or signal
patterns. Direct sequence speed spectrum (DSSS), which is used in CDMA,
multiples the data bits by a very fast pseudo-random bit pattern (PN sequence)
that "spreads" the data into a large coded stream that takes the full bandwidth
of the channel.
Dynamic IP Address – An IP address that is automatically assigned to a
client station in a TCP/IP network, typically by a DHCP server. Network
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