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TL-R480T
 
 Enterprise Broadband Router User Giude 
 
 
Appendix D:  Glossary 
 
DDNS 
(Dynamic  Domain  Name  System)  - The capability of assigning a fixed host 
and domain name to a dynamic Internet IP address.   
 
DHCP 
(Dynamic  Host  Configuration  Protocol)  - A protocol that automatically 
configure the TCP/IP parameters for the all the PCs that are connected to a DHCP 
server. 
 
DMZ 
(Demilitarized Zone) - A Demilitarized Zone allows one local host to be exposed 
to the Internet for a special-purpose service such as Internet gaming or 
videoconferencing. 
 
DNS 
(Domain  Name  Server)  - An Internet Server that translates the names of 
websites into IP addresses. 
 
Domain Name - 
A descriptive name for an address or group of addresses on the 
Internet.  
 
DoS
  (Denial  of  Service) - A hacker attack designed to prevent your computer or 
network from operating or communicating. 
 
DSL 
(Digital Subscriber Line) - A technology that allows data to be sent or received 
over existing traditional phone lines. 
 
ISP 
(Internet Service Provider) - A company that provides access to the Internet 
 
MTU 
(Maximum Transmission Unit- The size in bytes of the largest packet that 
can be transmitted. 
 
NAT 
(Network Address Translation) - NAT technology translates IP addresses of a 
local area network to a different IP address for the Internet. 
 
PPPoE 
(Point to Point Protocol over Ethernet) PPPoE is a protocol for connecting 
remote hosts to the Internet over an always-on connection by simulating a dial-up 
connection. 
 
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