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Airlink101 AR580W3G User Manual

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4-3 Glossary

Default Gateway (Router): Every non-router IP device needs to configure a default

gateway’s 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 out towards 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.Portablerouter.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 "Portablerouter.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 to the Internet for a

pre-configured amount of time, the connection will automatically be 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: 192.168.2.1. 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 “.”: