Item
Descriptions
RADIUS server
RADIUS is an abbreviation of Remote Access Dial In User authentication Service, and
it is a protocol used for authentication in various networks such as wireless LAN. An
authentication server compatible with the protocol is called a RADIUS server.
The RADIUS server eliminates the need of registering user information separately in each
device even when there are multiple network devices, and enables integrated management
of multiple network devices and users.
Shared Key / SHARED
This is a secret key encryptosystem for wireless signals in which authentication 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.
SUBNET MASK
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 subnet mask.
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.
WEP
Abbreviation for Wired Equivalent Privacy. This is a method for encrypting communication
data. The encryption key is created and notified only to the communicating user, so the
communication data cannot be decrypted by a third party.
WPA-EAP
WPA2-EAP
Standard for the encryption method for wireless LAN. This is an encryption method for
corporations, and encryption is performed using the external server.
WPA-PSK
WPA2-PSK
This is a standard covering encryption methods used in wireless LAN.
It provides greater security than WEP, and has functions such as a user authentication
function and also TKIP (encryption protocol) which automatically changes the encryption
key at fixed intervals.
And this authentication requires no authentication server.
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ENGLISH
Chapter 7 Appendix - Glossary for network functions
