Your perl script changes this: >rlm_perl: Added pair Framed-IP-Address = 10.218.4.120 into this (use IP pool on the NAS): >rlm_perl: Added pair Framed-IP-Address = 255.255.255.254 I don't see this: $RAD_REPLY{'Framed-IP-Address'} = "10.218.6.1"; at all. Fix your script. Ivan Kalik Kalik Informatika ISP