| VT1000v Series Voice Terminal User Guide |
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DNS | The Domain Name System is the Internet system for converting domain names to IP addresses. A DNS server contains a table |
| matching domain names such as Internetname.com to IP addresses such as 192.169.9.1. When you access the Web, a DNS server |
| translates the URL displayed on the browser to the destination website IP address. The DNS lookup table is a distributed Internet |
| database; no one DNS server lists all domain name to IP address matches. |
download | To copy a file from one computer to another. You can use the Internet to download files from a server to your home computer. |
downstream | In a cable data or DSL network, downstream describes the direction of data received by your computer from the Internet. |
DHCP | A Dynamic Host Configuration Protocol server dynamically assigns IP addresses to client hosts on an IP network. DHCP eliminates |
| the need to manually assign static IP addresses by “leasing” an IP address and subnet mask to each client. It enables the automatic |
| reuse of unused IP addresses. |
Ethernet | The most widely used type of local area network (LAN). The most commonly installed Ethernet networks are called |
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host | A host is any computer or similar device supporting |
| a unique host number that combined with the network number forms its IP address. |
IP address | An Internet Protocol address is an identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route |
| messages based on the destination IP address. Your broadband provider assigns your cable modem an IP address to provide a |
| continuous Internet connection. |
IPSec | The Internet Protocol Security protocols are authentication and encryption standards for secure data exchange over the Internet. |
MAC address | The Media Access Control address uniquely identifies each device that can be connected to an Ethernet network. It is permanently |
| written to |
MHz | Mega Hertz. A measure of radio frequency - millions of cycles per second. One MHz means one million cycles per second. |
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