Chris,

the whole purpose of 802.1x is to generate a secure auth mechanism and
dynamic re-keying. I have used hostapd together with freeradius and the
key generation as well as the re-keying are automatic. You can set the
re-keying interval as well.
I am not familiar with your setup, but a way to find out, would be to
sniff the traffic and look for EAPOL-Key frames which are exchanged at the
end of the auth process.

Hope this can help.
Andrea

On Wed, 19 May 2004, Chris Bshaw wrote:

> Hi....
>
> I have created the following setup:
>
> W2K 802.1x supplicant client with NetGear WG511 card
> Cisco Aironet 1200 AP
> RH9 Linux server with a cvs download of freeradius
>
> As per the many docs on the subject, I have successfully setup
> EAP-TLS.....however, I can't tell if WEP keys are being generated.
>
> When I look on the web admin page of the Aironet 1200 the associations list
> says that my W2K client is EAP-associated (so that works OK) but Encryption
> is marked as 'none'.
>
> ....and I have looked in the radiusd logs but can't work out whether WEP
> keys are being generated. I know that the session key is used to generate
> the keys, so perhaps something in the logs (without the word WEP in it) is
> responsible for WEP key generation.
>
> I thought that if you used EAP-TLS then you automatically got WEP keys
> generated....? Is this true?
> If so how can I confirm that this is happening (other than trying to sniff
> the traffic off the air to see if it is encrypted ;-)...
>
> If this isn't true, does this mean that it is possible to use EAP-TLS
> without WEP key generation?
>
> If so, are there extra steps I need to follow to activate WEP key generation
> as part of EAP-TLS?
>
> Sorry if some of these questions seem a bit strange....I am a bit new to
> 802.1x and EAP....
>
> Thanx in advance for any help.
>
> Chris Bradshaw
>
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