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What is Infrastructure?
An integrated wireless and wired LAN is called an Infrastructure configuration. Infrastructure is
applicable to enterprise scale for wireless access to central database, or wireless application for
mobile workers.
What is Roaming?
Roaming is the ability of a portable computer user to communicate continuously while moving
freely throughout an area greater than that covered by a single Wireless Network Access Point.
Before using the roaming function, the workstation must make sure that it is the same channel
number with the Wireless Network Access Point of dedicated coverage area.
4.2 Glossary
ACCESS POINT
Access points are way stations in a wireless LAN that are connected to an Ethernet hub or server. Users
can roam within the range of access points and their wireless device connections are passed from one
access point to the next.
AUTHENTICATION
Authentication refers to the verification of a transmitted message's integrity.
DMZ
DMZ (DeMilitarized Zone) is a part of an network that is located between a secure LAN and an insecure
WAN. DMZs provide a way for some clients to have unrestricted access to the Internet.
BEACON INTERVAL
Refers to the interval between packets sent sent by access points for the purposes of synchronizing
wireless LANs.
DHCP
DHCP (Dynamic Host Configuration Protocol) software automatically assigns IP addresses to client
stations logging onto a TCP/IP network, which eliminates the need to manually assign permanent IP
addresses.
DNS
DNS stands for Domain Name System. DNS converts machine names to the IP addresses that all
machines on the net have. It translates from name to address and from address to name.
DOMAIN NAME
The domain name typically refers to an Internet site address.
DTIM
DTIM (Delivery Traffic Indication Message) provides client stations with information on the next
opportunity to monitor for broadcast or multicast messages.
FILTER
Filters are schemes which only allow specified data to be transmitted. For example, the router can filter
