Difference Between Layer 2 Security and WPA & WPA2 Parameters

[Daniel Ordóñez Flores]

Hello Everyone, thank you everyone to read me again.

I have one questions about security WLAN configuration. I created one SSID when I configured the tab security I see this:

I'm not an expert how you can see but I thought that when you use WPA + WPA2 you will use an PSK to join the network.

I see I can use 802.1X in layer 2 security.

I don't really understand what the difference betwen this options. I mean if  I use 802.1X for layer 2 security I need to stablish a WEP KEY?

IF I use a WPA +WPA2 for layer 2 security and 802.1X for Auth Key Managment I need to use a Radius?

Exist any documentation about this options?

[Scott Fella · Accepted solution]

Look at it this way.

WPA+TKIP
Uses pre shared key and is not supported by 802.11n

WPA2+AES
Also uses pre shared key and is supported by 802.11n

WPA+TKIP or WPA2+AES and 802.1x
Requires a radius server or the use of LDAP
Also requires a certificate
Server side certificate for PEAP and a server and client side certificate for EAP-TLS.

You also want to only use either WPA/TKIP or WPA2/AES, not both and don't mix and match.

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[Scott Fella]

Some link that can help

http://www.globalknowledge.com/training/whitepaperdetail.asp?pageid=502&wpid=1032&country=United+States

http://superuser.com/questions/373453/802-1x-what-exactly-is-it-regarding-wpa-and-eap

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