Cleartext password between NAS and Radius Server

[Alan DeKok]

kpani wrote:
> When we use PAP for user authentication, the password will be passed from
> user to NAS(radius client) as cleartext password. But how it is transmitted
> from NAS to Radius server. 1) As clear text password? or 2)  The password is
> encrypted using the secret keyword(used in both radius client & server) and
> decrypted using secret key in server. Please correct me. I am seeing
> different answers in web pages.

  (2)

  See http://freeradius.org/rfc/attributes.html

  Click on User-Password.

  Alan DeKok.