Hi All, I am wondering if anybody has done this, I'm sure it's actually very easy to do, But I'm just not able to get it done :( I need to filter requests coming from my NAS going to my radius server being forwarded to a clients radius server. Now I am able to modify and update attributes, even add using preproxy_users. but how on earth do I drop the attribute completely? Currently in preproxy_users: DEFAULT Realm == "testrealm.com" NAS-IP-Address := 196.3.121.32, User-Name =* ANY, User-Password =* ANY Other server still recieves: 3GPP2-Correlation-Id Calling-Station-Id Framed-Protocol User-Name User-Password Service-Type NAS-IP-Address NAS-Identifier Proxy-State User-Password Client-IP-Address Kind regards, Michael da silva Pereira