DG-BR4000N/E User Manual
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15. Glossary
Default Gateway (Router):
Every non-router IP device needs to configure a default gateway
IP address. When the device sends out an IP packet, if the destination is not on the same
network, the device has to send the packet to its default gateway, which will then send it to
the destination.
DHCP:
Dynamic Host Configuration Protocol. This protocol automatically gives every
computer on your home network an IP address.
DNS Server IP Address:
DNS stands for Domain Name System, which allows Internet
servers to have a domain name (such as www.Broadbandrouter.com) and one or more IP
addresses (such as 192.34.45.8). A DNS server keeps a database of Internet servers and their
respective domain names and IP addresses, so that when a domain name is requested (as in
typing "Broadbandrouter.com" into your Internet browser), the user is sent to the proper IP
address. The DNS server IP address used by the computers on your home network is the
location of the DNS server your ISP has assigned to you.
DSL Modem:
DSL stands for Digital Subscriber Line. A DSL modem uses your existing
phone lines to transmit data at high speeds.
DMZ:
DMZ is a physical or logical subnetwork that contains and exposes an organization's
external services to a larger untrusted network, usually the Internet. The purpose of a DMZ is
to add an additional layer of security to an organization's local area network (LAN); an
