NetComm V85 manual Dhcp, Dns, Dsl

CO	Central Office A circuit switch that terminates all the local access
	lines in a particular geographic serving area; a physical building
	where the local switching equipment is found. xDSL lines running
	from a subscriber’s home connect at their serving central office.
DHCP	Dynamic Host Configuration Protocol DHCP automates address
	assignment and management. When a computer connects to the
	LAN, DHCP assigns it an IP address from a shared pool of IP
	addresses; after a specified time limit, DHCP returns the address to
	the pool.
DHCP relay	Dynamic Host Configuration Protocol relay. A DHCP relay is a
	computer that forwards DHCP data between computers that request
	IP addresses and the DHCP server that assigns the addresses. Each
	of the ADSL modem’s interfaces can be configured as a DHCP relay.
	See DHCP.
DHCP server	Dynamic Host Configuration Protocol server. A DHCP server is
	a computer that is responsible for assigning IP addresses to the
	computers on a LAN. See DHCP.
digital	Of data, having a form based on discrete values expressed as binary
	numbers (0’s and 1’s). The data component in DSL is a digital
	signal. See also analog.
DNS	Domain Name System. The DNS maps domain names into IP
	addresses. DNS information is distributed hierarchically throughout
	the Internet among computers called DNS servers. When you start to
	access a web site, a DNS server looks up the requested domain name
	to find its corresponding IP address. If the DNS server cannot find
	the IP address, it communicates with higher-level DNS servers to
	determine the IP address. See also domain name.
domain name	A domain name is a user-friendly name used in place of its
	associated IP address. For example, www.globespan. net is the
	domain name associated with IP address 209.191.4.240. Domain
	names must be unique; their assignment is controlled by the Internet
	Corporation for Assigned Names and Numbers (ICANN). Domain
	names are a key element of URLs, which identify a specific file at a
	web site, e.g., http://www.globespan.net/index.html. See also DNS.
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 BASE-T,100BASE-T, twisted pair.
Filtering	To screen out selected types of data, based on filtering rules.

50	V85 Desktop VoIP Phone User Guide
	YML772 Rev1