proxy configuration with ldap authorization(very urgent)

[sumi thra]

Hi 

Im sending an authentication request to the radius server which
proxy's the request to the other server.

But After proxying the request it does ldap search & returns
Access-Reject to the user.

Why is this ldap authentication is needed for proxy requests??

Please help he in this regard. Awaiting for the earliest reply.

Thanks
Sumi