Справочник Пользователя для Huawei DR814Q

User Manual 
Aolynk DR814Q ADSL2+ Broadband Router 

11  Appendix – Glossary

 

75 

c host configuration protocol. DHCP automates IP address assignment and 

n a PC connects to the LAN, DHCP assigns it an IP address from a 

ss a website, a DNS 

e requested domain name and searches for its corresponding IP 

riendly name in place of its associated IP address. A domain 

ust be unique and is controlled by the Internet Corporation for Assigned Names 

certain types of IP traffic commonly used by hackers to 

protect your network. You can also restrict the types of IP traffic sent from your network 

to the outside. Some firewall protection can be provided by packet filtering and network 

address translation services. 

Dynami

management. Whe

shared address pool, and after a specified period, DHCP returns the address to the 

pool. 

Dynamic host configuration protocol server. A DHCP server is a computer responsible 

for assigning IP addresses to the computers in a LAN. 

Domain name system. The DNS translates domain names into IP addresses. DNS 

information is distributed hierarchically throughout the Internet among the computers 

called DNS servers. For example, www.yahoo.com is the domain name associated 

with the IP address 216.115.108.243. When you start to acce

server looks up th

address. If the DNS server cannot find the IP address, it communicates with 

higher-level DNS servers to determine the IP address. 

A domain name is a user-f

name m

and Numbers (ICANN).A domain name is a key element of a URL which identifies a 

specific file at a website. 

Digital subscriber line. A technology that allows both digital data and analog voice 

signals to travel over the existing copper telephone lines. 

The most commonly installed computer network technology, usually using the twisted 

pair cables. The Ethernet data rates are 10 Mbps and 100 Mbps. 

A firewall can protect your computer or LAN from malicious attacks and other 

unexpected accesses. Unauthorized users may attempt to attack your network in order 

to prevent you or others on your LAN from the services. 

Using the firewall, you can block