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Glossary

Item

Access point

These are stations for relaying electromagnetic signals between computers

in a wireless LAN. When a computer is connected to an access point, it can

communicate through the network connected to the access point.

AD HOC

This is the mode in which computers communicate with each other directly,

rather than via access points.

AES

Next generation standard cryptography standardized by the National Institute of

Standards and Technology (NIST).

AES: Advanced Encryption Standard

Default Gateway

The devices that are used for different network standards from yours. Default

Gateway enables a connection with other network, by adjusting bilateral

differences such as communication protocols. If no gateway is specified for the

IP address of access destination, data will be sent to the host set as the default

gateway.

DHCP

Abbreviation for Dynamic Host Configuration Protocol. This function

automatically assigns IP addresses to the connected equipment. If a device with

the DHCP server function is present within a LAN, it automatically assigns IP

addresses to the connected equipment.

INFRASTRUCTURE

This is the mode in which communications are performed via the access point.

(infrastructure

mode)

IP address

Internet Protocol (IP) is a protocol for distributing data, and the address

corresponding to the data distribution destination is called the IP address. The

same IP address cannot be used within the same LAN.

LAN

Abbreviation for Local Area Network. This is a network with a relatively narrow

range such as inside a company.

MAC address

Each network adapter has its own ID No.

A discrete ID No. is assigned to each and every network adapter around the

world. These IDs are used to exchange data between adapters. These IDs

are a combination of a discrete number managed and assigned by the IEEE to

each individual manufacturer and a unique number assigned to each individual

adapter by the manufacturer.

Open System/

This is an authentication of wireless signals employing a public key

OPEN

encryptosystem.

Shared Key/

This is a secret key encryptosystem for wireless signals in which authentication

SHARED

is performed with a key pre-set in the WEP.

Other terms for this method, in which the same key is used for both encryption

and decryption, are "shared key encryptosystem" and "common key

encryptosystem".

SSID

Abbreviation for Service Set ID. The SSID identification code must be set to

distinguish equipment included in a wireless LAN that uses access points from

equipment not included in that LAN.

This may appear as the "ESSID" or the "network name" for wireless LAN

adapters made by some manufacturers.

Subnetmask

This limits the range of the IP addresses assigned to computers in order to

divide the network into a number of sections during TCP/IP connection. The

value used to divide the network at this time is called the subnetmask.

TKIP

Abbreviation for Temporal Key Integrity Protocol.

This encryption protocol provides even greater security than WEP because it

changes the encryption key at fixed intervals.

Descriptions

See

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