SECURID PROBLEM

Hi,
I' m tring to authenticate my dial up users with SercurID.
And I'm using as radius server GNU RADIUS SERVER.
My RSA ACE SERVER is 4.1 version.
I installed linux ACE/AGENT that I downloaded from RSA WEB SITE.
I copy my ACE ERVER's sdconf.rec.
My RSA Library is sdiclient.a.
I installed GNU RADIUS version 0.96.4, when I did configure I select
enable-securid and enable-securid-resend-hach  options.
The installation works fine.
But on Gnu Radius  manual I couldn't find how to configure my Gnu Radius

Server to talk with RSA ACE SERVER.
I know that I can set aceclientipstatement and I think that on the file
users I would be set Authentication-Type = SecurID, but I don't know
much more.
Could you tell me what I must write on ../raddb/users 's file?
And Could you help me to configure me my GNU RADIUS SERVER for SecurID
support
Thnaks in advance amd I'm sorry for my bad English
Carlo