Is it possible to filter by username using squidguard Captive portal and Radius

[sine_kitt]

Hi does anyone know how to filter web searchers user wise by using Squid Guard and Captive Portal with Radius authentication…Web filetring works when i force my client computers to use pfsense as the Proxy...But i just want clients to use Pfsense as the Gateway..

1. My radius server is on windows 2008 server
2. captive portal have radius authentication
3. i have configured rules on squidGuard according to users..and on squid transparent proxy is on

but the acl rules on squidguard does not block according to users...but same works when i clients to force use pfsense as proxy