Proxy and clear-text password

[Luis Galan]

Hello!

I have set up my freeradius 1.1.3 server to use proxy feature.

User at domain1 are redirected to the radius2 which store the usernames and 
  password for that user.
It seems that my nas is sending encrypted passwords but radius2 only 
accept clear text passwords. And my radius1 is proxying the request of 
the user at doamin1 with encrypted passwords to radius2.

What can I do to send the clear-text passwords to radius2?

Thanks.

Luis