DG-HR3420 User Manual
79
5. 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.
Ethernet:
A standard for computer networks. Ethernet networks are connected by
special cables and hubs, and move data around at up to 10/100 million bits per
second (Mbps).
Idle Timeout
:
Idle Timeout is designed so that after there is no traffic on the Internet
for a pre-configured amount of time, the connection will automatically get
disconnected.
IP Address and Network (Subnet) Mask:
IP stands for Internet Protocol. An IP address
consists of a series of four numbers separated by periods, which identifies a single,
unique Internet computer host in an IP network. Example: 192.168.1.1. It consists of
2 portions: the IP network address and the host identifier.
The IP address is a 32-bit binary pattern, which can be represented as four cascaded
decimal numbers separated by “.”: aaa.aaa.aaa.aaa, where each “aaa” can be anything
from 000 to 255, or as four cascaded binary numbers separated by “.”:
bbbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb, where each “b” can be either 0 or 1.
