Freeradius reply package forward

[Ali Orhun Akkirman]

I use Freeradius auth with LDAP. Freeradius server send "reply" to client.
It's OK. But i want to below package send (forward) another IP address
(fortigate firewall).

Sending Access-Accept of id 79 to 17.16.10.20 port 46695
Reply-Message = "test string"
Service-Type = Framed-User
Framed-Protocol = PPP
Class = 0x73657669796532
Framed-IP-Address = 17.16.1.101
User-Name = "test12345"
Tunnel-Type:0 = VLAN

In example i want forward to 17.16.10.1