Multiple stage WEP keying with wpa_supplicant
david.anderson at calixo.net
Tue May 24 03:44:54 EDT 2005
I am trying to authenticate my laptop to my university's wireless
network (currently in the early beta phase) using wpa_supplicant. The
engineer setting up the wifi access only gave out a manual for
authenticating with Windows XP, so I'm trying to transpose that and the
few (fairly confusing) mails sent by the engineer in question.
From what I'm able to understand, I need to:
- Explicitely set an ssid and static WEP key to associate to the AP
- Perform 802.1x auth using PEAP/MSCHAPv2, bypassing the PEAP
- Get hold of a dynamically generated WEP key given out on successful
authentication and use it instead of the association key.
My first question is more of a general question about
authentication/keying methods. What is the exact protocol collage that
would form PEAP/MSCHAPv2 auth with dynamic WEP keying? Does the example
block entitled "IEEE 802.1X/EAPOL with dynamically generated WEP keys"
fit what I'm talking about here? Does any of the above procedure I
deduced make any sense in regard with your past experiences of wireless
My second question concerns the capabilities of wpa_supplicant. Is it
possible to define a network block that'd make wpa_supplicant first
associate using a given (static) ssid and WEP key, then perform
authentication and replace the WEP key with what the authenticator
returns? How would I define this in a network block?
From my understanding of wpa_supplicant, it would manage the second
part (auth + keying) with no problem if I explicitely set the essid and
first WEP key; is there a way to automate this as a part of
wpa_supplicant's scanning phase?
Thanks in advance for your help
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