Floating IP for standalone deployment

Hi Ali26 , 
Floating IP is an objected related to DSC { Device service Clustering } or what we call it High availability , So there is no need to configure it without DSC or a standby box , and configure SNAT pool to have the varity of egress ips to forward your traffic. 

I want to add something , if you have HA pair configures , definitely you will need the Floating ip addresses which they are shared between both of units { Active/standby } , and the Bigip prefers the Floating ips  over self ips to forward egress traffic in case you used { SNAT >>> Automap }.