That option is for the dhcp server to set option 60 I need the option for the dhcp client on the interface from mij ISP.  I have tried : ip dhcp option 60 ascii "IPTV_RG"  That is failed because I may not use ip (on the interface) in the flexconfig. 

Yes: I have to send option 60 to the dhcp server of the ISP. 

It is for the client not the server site. I have tried : ip dhcp option 60 ascii "IPTV_RG" On the interface in flexconfig. But ip.......... is not allowed!  

Where can I founf this screen? This is on FMC I think.