Appendix 1 Glossary - Tenda W303R User Manual

11N Wireless User Guide

Appendix 1 Glossary

Channel:
An instance of medium use for the purpose of passing protocol data units (PDUs) that may
be used simultaneously, in the same volume of space, with other instances of medium
use(on other channels) by other instances of the same physical layer (PHY),with an
acceptably low frame error ratio(FER) due to mutual interference.
SSID:
SSID (Service Set Identifier) is the network name shared by all devices in a wireless
network. Your network's SSID should be unique to your network and identical for all
devices within the network. It is case-sensitive and must not exceed 20 characters (use any
of the characters on the keyboard).Make sure this setting is the same for all devices in your
wireless network.
WPA/WPA2 Encryption:
A security protocol for wireless networks that builds on the basic foundations of WEP. It
secures wireless data transmission by using a key similar to WEP, but the added strength
of WPA is that the key changes dynamically. The changing key makes it much more difficult
for a hacker to learn the key and gain access to the network.WPA2 is the second
generation of WPA security and provides a stronger encryption mechanism through
Advanced Encryption Standard (AES), which is a requirement for some government users.
802,1x authentication
Static WEP key is difficult to manage for when you change the key, you will have to inform
all others, and if the key is disclosed in one of the places, the key can no longer provide
security. Besides, there's severe security loophole about static WEP encryption. The WEP
key can be decrypted after one person receives a specific amount of data via wireless
intercepting. 802,1x is initially used for wired Ethernet authentication access to prevent
illegal users from accessing the network. Later, it is found that 802.1x can better solve the
wireless network security problem. EAP-TLS of the 802.1x successfully achieves the
two-way authentication between users and networks, i.e. can prevent illegal users from
accessing the network and can also prevent users from accessing the illegal AP. 802.1x
utilizes dynamic WEP encryption to protect the WEP key from being decrypted. To solve
the publishing problem for digital certification, people make some changes to TLS
authentication and TTLS and EAP come into exist, which enable you to access the network
by using the traditional way of authentication: username and password.
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