Glossary - Digicom Michelangelo LAN Manual

Glossary

ADSL
ADSL, Asymmetric Digital Subscriber Line, is a broadband communication technology
designed for use on regular phone lines. It has the ability to move data over the phone lines
at speeds up to 140 times faster than the analog modem available today.
CHAP
CHAP, Challenge Handshake Authentication Protocol, is one of the two PPP authentication
protocols, with PAP the other one. Authentication protocol requests information to verify
a valid user. CHAP is a stronger authentication method because it uses encryption and may
repeatedly request verification of the identity of the user any time after the link is established.
C l i e n t
Devices and software that request information.
Community
Community names are passwords which are also used by other applications, such as Telnet.
DHCP
DHCP stands for Dynamic Host Configuration Protocol. Every computer on a TCP/IP
network must be given a unique computer name and IP address. DHCP is an industry
standard protocol that specifies methods for dynamic configuration of computers on TCP/
IP networks. It allows centralized configuration of all workstations' TCP/IP protocol and IP
address allocation from the server.
After you activate the DHCP server, whenever a network client select dynamic DHCP
configuration option in configuring TCP/IP protocol and IP address, the task of allocation of
IP address will be done dynamically and automatically by the DHCP Server.
DNS
DNS stands for Domain Name Server. The main purpose for DNS is to map host names into
Internet addresses (so call IP address), or vice versa.
If the first DNS server cannot process the translation request, it queries an upstream DSN
server, and another one, and so on, until the correct IP address is returned or no corresponding
address for the request can be found.
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