Need help authenticating local users on Apple server

[Raymond Norton]

Just installed v 2.1.11 on a mac (OSX 6.3) . Freeradius is working with 
clear text passwords and radtest. According to the wiki, I should be 
able to authenticate local users accounts without changing anything on 
the config. That's the way I understood it anyway.  However, I am 
getting "Access-Reject" errors when using local credentials. What 
documentation specifically addresses authenticating local users?

Raymond