AirLive N.Power User Manual
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12. Wireless Network Glossary
AirLive N.Power User’s Manual
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Client 
Client means a network device or utility that receives service from host or server. A client 
device means end user device such as wireless cards or wireless CPE. 
CPE Devices 
CPE stands for Customer Premises Equipment. A CPE is a device installed on the end 
user's side to receive network services. For example, on an ADSL network, the ADSL 
modem/router on the subscriber's home is the CPE device. Wireless CPE means a 
complete Wireless (usually an AP with built-in Antenna) that receives wireless broadband 
access from the WISP. The opposite of CPE is CO. 
 
 
CTS 
Clear To Send. A signal sent by a device to indicate that it is ready to receive data. 
 
 
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.