Netgear JWNR2000v2 - Wireless-N 300 Router 사용자 설명서

Wireless Security Options

A security option is the type of security protocol applied to your wireless network. The 
security protocol in force encrypts data transmissions and ensures that only trusted devices 
receive authorization to connect to your network. There are two types of encryption: Wired 
Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WPA is stronger, and 
therefore, recommended over WEP. WPA has several options including pre-shared key 
(PSK) encryption. 

This section presents an overview of the security options and provides guidance on when to 
use which option. Note that it is also possible to disable wireless security. NETGEAR does 
not

 recommend this.

WPA encryption is built into all hardware that has the Wi-Fi-certified seal. This seal means 
the product is authorized by the Wi-Fi Alliance (

) because it complies with 

the worldwide single standard for high-speed wireless local area networking. 

WPA2-PSK is the strongest. It is advertised to be theoretically indecipherable due to the 

greater degree of randomness in encryption keys that it generates. WPA2-PSK gets 
higher speed because it is usually implemented through hardware, while WPA-PSK is 
usually implemented through software. WPA2-PSK uses a passphrase to authenticate 
and generate the initial data encryption keys. Then it dynamically varies the encryption 
key. 

WPS-PSK + WPA2-PSK Mixed Mode provides broader support for all wireless clients. 

WPA2-PSK clients get higher speed and security, and WPA-PSK clients get decent 
speed and security. The product documentation for your wireless adapter and WPA client 
software should have instructions about configuring their WPA settings.

WPA-PSK uses a passphrase to perform the authentication and generate the initial data 
encryption keys. Then it dynamically varies the encryption key. WPA-PSK uses Temporal 
Key Integrity Protocol (TKIP) data encryption, implements most of the IEEE 802.11i 
standard, and is designed to work with all wireless network interface cards, but not all 
wireless access points. It is superseded by WPA2-PSK.

WEP uses an old encryption method and can be easily decoded with today's powerful 
computers. Use this mode only when you have a very old legacy wireless client that does not 
support WPA-PSK. WEP is only available with certain Mode settings. The Wi-Fi alliance 
highly recommends against using WEP and plans to make it obsolete.