General Concepts For Wireless Lan (2.4Ghz/5Ghz) - Draytek VigorAP 903 User Manual

II-2 General Concepts for Wireless LAN (2.4GHz/5GHz)
VigorAP 903 is a highly integrated wireless local area network (WLAN) for 5 GHz 802.11ac or 2.4/5 GHz
802.11n WLAN applications. It supports channel operations of 20/40 MHz at 2.4 GHz and 20/40/80 MHz at
5 GHz. VigorAP 903 can support data rates up to 867 MBps in 802.11ac 80 MHz channels.
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Note:
* The actual data throughput will vary according to the network conditions and
environmental factors, including volume of network traffic, network overhead and building
materials.
VigorAP 903 plays a role as an Access Point (AP) connecting to lots of wireless clients or Stations (STA). All
the STAs will share the same Internet connection via VigorAP 903. The General Setup will set up the
information of this wireless network, including its SSID as identification, located channel etc.
Security Overview
WEP (Wired Equivalent Privacy) is a legacy method to encrypt each frame transmitted via radio using
either a 64-bit or 128-bit key. Usually access point will preset a set of four keys and it will communicate
with each station using only one out of the four keys.
WPA (Wi-Fi Protected Access), the most dominating security mechanism in industry, is separated into two
categories: WPA-personal or called WPA Pre-Share Key (WPA/PSK), and WPA-Enterprise or called
WPA/802.1x.
In WPA-Personal, a pre-defined key is used for encryption during data transmission. WPA applies Temporal
Key Integrity Protocol (TKIP) for data encryption while WPA2 applies AES. The WPA-Enterprise combines
not only encryption but also authentication.
Since WEP has been proved vulnerable, you may consider using WPA for the most secure connection. You
should select the appropriate security mechanism according to your needs. No matter which security suite
you select, they all will enhance the over-the-air data protection and /or privacy on your wireless network.
The VigorAP 903 is very flexible and can support multiple secure connections with both WEP and WPA at
the same time.
WPS Introduction
WPS (Wi-Fi Protected Setup) provides easy procedure to make network connection between wireless
station and wireless access point (VigorAP 903) with the encryption of WPA and WPA2.
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