Cisco av-pair for NX-OS and IOS

Hi, Using freeradius2-2.1.12. I need to setup read-write access for both Cisco NX-OS and IOS devices. I did the following, DEFAULT Group == operator-rw, Auth-Type = System Service-Type = NAS-Prompt-User, cisco-avpair := "shell:roles*\"network-admin vdc-admin priv-lvl=15\"" I can log into both NX-OS and IOS devices; however, IOS devices only permits exec mode not the privileged exec (enable) mode. Not sure if I'm doing something wrong on the syntax. Can someone give me few pointers? Norman