Glossary - UniData Communication Systems WirelessIP3000 User Manual

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WirelessIP3000 User Guide

Glossary

9. Glossary
802.1x
As the IEEE standard for access control for wireless and wired LANs, 802.1x provides a means of
authenticating and authorizing devices to attach to a LAN port. This standard defines the Extensible
Authentication Protocol (EAP), which uses a central authentication server to authenticate each user on
the network.
AP (Access Point)
A transceiver that makes a connection between wired network and one or more wireless devices.
DHCP (Dynamic Host Configuration Protocol)
Automatically gets an IP address assigned to a device when it logs onto the network.
SIP
SIP is the real-time communication protocol for Voice over IP (VoIP), and it supports multimedia
communications. SIP performs basic call-control tasks, such as session set up and tear down and
signaling for features such as hold, caller ID and call transferring. With SIP, most of the intelligence for
call setup and features resides on the SIP device or user agent, such as an IP phone or a PC with voice
or instant-messaging software.
MD5 (Message Digest 5)
A secure hashing function that converts an arbitrarily long data stream into a digest of fixed size (128 bit).
NAT (Network Address Translation)
Sharing one incoming IP address by creating new multiple IP address to each devices.Roaming
Movement from one AP coverage area to another with a wireless device without disconnection.SSID
It's an identifier when wireless device tries to connect to the WLAN through AP. It's like a name that
differentiate WLAN environments. Therefore both AP and wireless device must have the same SSID in
order to connect to a certain WLAN.
TCP/IP
A protocol that makes smooth communication between LANs and WANs through computers. TCP/IP is
made up with TCP plus IP protocol. TCP (Transmission Control Protocol) guarantees data transmission
between server and client. IP (Internet Protocol) is the computer address.
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Unidata Communication Systems Inc.

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