masking username/password on wireless?

Question:
masking username/password on wireless?
At school I want to bypass websense on my wireless right? Circumventors work, but they're slow and the head of IT suspects things and can see what your doing of course (especially me :)). The school checks the authentication (credentials) of the account thats currently logged on and redirects to the corresponding network (student/staff). I know the username/domain/password of a local account that has access to the staff network. Intel PROSet/Wireless has "Profiles" and you can set what credentials/authentication you want to use. The problem is, I don't know what type my server uses? you know like
PEAP, LEAP, MD5, EAP-SIM, TLS, TTLS, EAP-FAST and then like 3 subcategories after that.
Is there a way to tell, and if I'm doing something wrong tell me please!
Thanks!
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