Radius for 802.1X and TKIP

2005-01-24 Thread Dani Camps
I want to set up a secure wlan using EAP-PEAP as
authentication method and Radius as a authentication
server, in the AP I choose TKIP encryption, but I
think TKIP needs to renew the keys used, and I think
is the Radius server the one that has to create the
keys and pass them to the AP, is this true ?

In that case how to configure Radius to use TKIP ?

Any of you have experience in this set up, wlan with
EAP-PEAP authentication in a Radius server and using
TKIP for encryption ?

Thanks !



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Re: Radius for 802.1X and TKIP

2005-01-24 Thread Artur Hecker
hi
TKIP is the encryption method used on the wireless link. radius is 
designed to be independent of the access technology used by the NAS.

in other words, TKIP is something which is not known to the radius 
server - by design. the radius server will - if available - provide the 
NAS (802.11 access point in that case) with the raw key material. 
however it is up to the NAS to derive the necessary keys from it.

you configure the NAS to use TKIP on the link. freeradius is 
automatically configured in a way that will derive and attach key 
material to the access-accept message sent to the solicited NAS. you can 
see the MPPE-*** attributes in the access-accept message in the full log 
(radiusd -s -X)

ciao
artur
Dani Camps wrote:
I want to set up a secure wlan using EAP-PEAP as
authentication method and Radius as a authentication
server, in the AP I choose TKIP encryption, but I
think TKIP needs to renew the keys used, and I think
is the Radius server the one that has to create the
keys and pass them to the AP, is this true ?
In that case how to configure Radius to use TKIP ?
Any of you have experience in this set up, wlan with
EAP-PEAP authentication in a Radius server and using
TKIP for encryption ?
Thanks !
		
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