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AirLive AP60 User Manual

Page 93

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12. Wireless Network Glossary

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AirLive AP60 User’s Manual

DDNS
Dynamic Domain Name System. An algorithm that allows the use of dynamic IP address

for hosting Internet Server. A DDNS service provides each user account with a domain

name. A router with DDNS capability has a built-in DDNS client that updates the IP
address information to DDNS service provider whenever there is a change. Therefore,

users can build website or other Internet servers even if they don't have fixed IP

connection.


DHCP
Dynamic Hosting Configuration Protocol. A protocol that enables a server to dynamically

assign IP addresses. When DHCP is used, whenever a computer logs onto the network, it

automatically gets an IP address assigned to it by DHCP server. A DHCP server can
either be a designated PC on the network or another network device, such as a router.


DMZ
Demilitarized Zone. When a router opens a DMZ port to an internal network device, it opens
all the TCP/UDP service ports to this particular device. The feature is used commonly for

setting up H.323 VoIP or Multi-Media servers.


DNS
A program that translates URLs to IP addresses by accessing a database maintained on a

collection of Internet servers.


Domain Name
The unique name that identifies an Internet site. Domain Names always have 2 or more

parts, separated by dots. In www.airlive.com, the "airlive.com" is the doman name.


DoS Attack
Denial of Service. A type of network attack that floods the network with useless traffic.

Many DoS attacks, such as the Ping of Death and Teardrop attacks, exploit limitations in

the TCP/IP protocols.

Encryption
Encoding data to prevent it from being read by unauthorized people. The common

wireless encryption schemes are WEP, WPA, and WPA2.