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Difference Between Layer 2 Security and WPA & WPA2 Parameters

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:

security one.png

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.

security two.png

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?

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Hall of Fame Master

Re: Difference Between Layer 2 Security and WPA & WPA2 Parameter

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.

Sent from Cisco Technical Support iPhone App

-Scott
*** Please rate helpful posts ***
2 REPLIES 2
Hall of Fame Master

Re: Difference Between Layer 2 Security and WPA & WPA2 Parameter

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.

Sent from Cisco Technical Support iPhone App

-Scott
*** Please rate helpful posts ***
Hall of Fame Master

Re: Difference Between Layer 2 Security and WPA & WPA2 Parameter

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