11N Broadband Wireless Router
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Appendix 1 Glossary
Channel
A communication channel, also known as channel, refers either to a physical
transmission medium such as a wire or to a logical connection over a
multiplexed medium such as a radio channel. It is used to transfer an information
signal, such as a digital bit stream, from one or more transmitters to one or more
receivers. If there is only one AP in the range, select any channel you like. The
default is Auto.
If there are several APs coexisting in the same area, it is advisable that you select
a different channel for each AP to operate on, minimizing the interference
between neighboring APs. For example, if 3 American- standard APs coexist in
one area, you can set their channels respectively to 1, 6 and 11 to avoid mutual
interference.
SSID
Service set identifier (SSID) is used to identify a particular 802.11 wireless LAN.
It is the name of a specific wireless network. To let your wireless network
adapter roam among different APs, you must set all APs’ SSID to the same
name.
WPA/WPA2
The WPA protocol implements the majority of the IEEE 802.11i standard. It
enhances data encryption through the Temporal Key Integrity Protocol (TKIP)
which is a 128-bit per-packet key, meaning that it dynamically generates a new
key for each packet. WPA also includes a message integrity check feature to
prevent data packets from being hampered with. Only authorized network users
can access the wireless network. The later WPA2 protocol features compliance
with the full IEEE 802.11i standard and uses Advanced Encryption Standard
(AES) in addition to TKIP encryption protocol to guarantee better security than
that provided by WEP or WPA. Currently, WPA is supported by Windows XP
SP1.
IEEE 802.1X Authentication
IEEE 802.1X Authentication is an IEEE Standard for port-based Network
Access Control (PNAC). It is part of the IEEE 802.1 group of networking
