Gents, i have installed freeradius and everything is working fine, and currently i have three different nas 1- Alcatel 2-Cisco 7200 3-Cisco ASR 1002 so, i have about 12 plans(X1,X2,X3,... etc). my concern is i have to create three different group for each plan such as (X1 alcatel, X1 cisco7200,X1 cisco1002) and for the rest plans do the same this is because they have different attributes for download and upload limitaion. and when i'm creating a user i have to assign three groups (X1 alcatel, X1 cisco7200,X1 cisco1002) to user and this is not professional radusergroup: user groupname priority abc X1 alcatel 0 abc X1 cisco7200 0 abc X1 cisco1002 0 this is for user mapping; radgroupcheck: groupname attribute op value X1 alcatel Nas-ip-address := 10.10.10.20 X1 cisco7200 Nas-ip-address := 10.10.10.20 X1 cisco1002 Nas-ip-address := 10.10.10.20 this is checking nas ip address i want to assign only one group name to user, inother words same group name with different reply attributes ; or what is your suggestion to get dynamic reply attribute based on nas ip address.